Sample records for wireless communication projects

  1. Airborne wireless communication systems, airborne communication methods, and communication methods

    DOE Patents [OSTI]

    Deaton, Juan D. (Menan, ID); Schmitt, Michael J. (Idaho Falls, ID); Jones, Warren F. (Idaho Falls, ID)

    2011-12-13T23:59:59.000Z

    An airborne wireless communication system includes circuitry configured to access information describing a configuration of a terrestrial wireless communication base station that has become disabled. The terrestrial base station is configured to implement wireless communication between wireless devices located within a geographical area and a network when the terrestrial base station is not disabled. The circuitry is further configured, based on the information, to configure the airborne station to have the configuration of the terrestrial base station. An airborne communication method includes answering a 911 call from a terrestrial cellular wireless phone using an airborne wireless communication system.

  2. Energy Harvesting Wireless Communications

    E-Print Network [OSTI]

    Ulukus, Sennur

    perspective what should we care about for energy efficient design of cellular/conventional wireless networks

  3. TESLA'S VISION OF THE WIRELESS GLOBAL COMMUNICATIONS

    E-Print Network [OSTI]

    Trajkovic, Ljiljana

    of Nikola Tesla #12;January 17, 2005 UBC Ljiljana Trajkovic, Simon Fraser University 9 Wireless patentsTESLA'S VISION OF THE WIRELESS GLOBAL COMMUNICATIONS Ljiljana Trajkovi Communication Networks;January 17, 2005 UBC Ljiljana Trajkovic, Simon Fraser University 2 Road map Tesla in 1890's First wireless

  4. Energy and quality scalable wireless communication

    E-Print Network [OSTI]

    Min, Rex K. (Rex Kee), 1976-

    2003-01-01T23:59:59.000Z

    Nodes for emerging, high-density wireless networks will face the dual challenges of continuous, multi-year operation under diverse and challenging operating conditions. The wireless communication subsystem, a substantial ...

  5. Wireless communication devices and movement monitoring methods

    DOE Patents [OSTI]

    Skorpik, James R.

    2006-10-31T23:59:59.000Z

    Wireless communication devices and movement monitoring methods are described. In one aspect, a wireless communication device includes a housing, wireless communication circuitry coupled with the housing and configured to communicate wireless signals, movement circuitry coupled with the housing and configured to provide movement data regarding movement sensed by the movement circuitry, and event processing circuitry coupled with the housing and the movement circuitry, wherein the event processing circuitry is configured to process the movement data, and wherein at least a portion of the event processing circuitry is configured to operate in a first operational state having a different power consumption rate compared with a second operational state.

  6. Tags, wireless communication systems, tag communication methods, and wireless communications methods

    DOE Patents [OSTI]

    Scott; Jeff W. (Pasco, WA), Pratt; Richard M. (Richland, WA)

    2006-09-12T23:59:59.000Z

    Tags, wireless communication systems, tag communication methods, and wireless communications methods are described. In one aspect, a tag includes a plurality of antennas configured to receive a plurality of first wireless communication signals comprising data from a reader, a plurality of rectifying circuits coupled with. respective individual ones of the antennas and configured to provide rectified signals corresponding to the first wireless communication signals, wherein the rectified signals are combined to produce a composite signal, an adaptive reference circuit configured to vary a reference signal responsive to the composite signal, a comparator coupled with the adaptive reference circuit and the rectifying circuits and configured to compare the composite signal with respect to the reference signal and to output the data responsive to the comparison, and processing circuitry configured to receive the data from the comparator and to process the data.

  7. Acoustical Communications for Wireless Downhole Telemetry Systems

    E-Print Network [OSTI]

    Farraj, Abdallah

    2012-08-22T23:59:59.000Z

    This dissertation investigates the use of advanced acoustical communication techniques for wireless downhole telemetry systems. Using acoustic waves for downhole telemetry systems is investigated in order to replace the wired communication systems...

  8. WIRELESS SENSOR NETWORK BASED CONTROL SYSTEM CONCIDERING COMMUNICATION COST

    E-Print Network [OSTI]

    WIRELESS SENSOR NETWORK BASED CONTROL SYSTEM CONCIDERING COMMUNICATION COST Yutaka Iino* Takeshi for wireless sensor network based control system, minimizing communication energy consumption. Some control, wireless sensor network technology has been developed rapidly, and various applications to control system

  9. Communication in automation, including networking and wireless

    E-Print Network [OSTI]

    Antsaklis, Panos

    Communication in automation, including networking and wireless Nicholas Kottenstette and Panos J and networking in automation is given. Digital communication fundamentals are reviewed and networked control are presented. 1 Introduction 1.1 Why communication is necessary in automated systems Automated systems use

  10. Low Frequency Wireless Communications Technology

    SciTech Connect (OSTI)

    Bartone, Erik J; Carbone, John F

    2004-01-27T23:59:59.000Z

    The purpose of this project was to demonstrate Nxegen's real-time wireless electricity monitoring and load management technologies in selected commercial, industrial, and municipal end user facilities. The purpose of which is to demonstrate the ability for Nxegen's technology to collect real-time electricity data to a central location (Nxegen's Network Operation Center "NOC"), aggregate customer load profiles into portfolios of profiles, and be able to dispatch load curtailment commands from the NOC to individual customer loads to demonstrate the ability to integrate demand resources into the overall electric utility system for the purpose of; (1) improving overall system reliability, (2) reducing wholesale electric generation prices (locational marginal prices "LMP"), and (3) reducing congestion costs in energy constrained areas (southwest Connecticut).

  11. TESLA'S VISION OF THE WIRELESS GLOBAL COMMUNICATIONS

    E-Print Network [OSTI]

    Trajkovic, Ljiljana

    to align with the electric field. The Inventions, Researches and Writings of Nikola Tesla #12;March 12TESLA'S VISION OF THE WIRELESS GLOBAL COMMUNICATIONS Ljiljana Trajkovi Communication Networks;March 12, 2004 Kwantlen College Ljiljana Trajkovic, Simon Fraser University 2 Road map Tesla in 1890's

  12. Analyzing Options for Airborne Emergency Wireless Communications

    SciTech Connect (OSTI)

    Michael Schmitt; Juan Deaton; Curt Papke; Shane Cherry

    2008-03-01T23:59:59.000Z

    In the event of large-scale natural or manmade catastrophic events, access to reliable and enduring commercial communication systems is critical. Hurricane Katrina provided a recent example of the need to ensure communications during a national emergency. To ensure that communication demands are met during these critical times, Idaho National Laboratory (INL) under the guidance of United States Strategic Command has studied infrastructure issues, concerns, and vulnerabilities associated with an airborne wireless communications capability. Such a capability could provide emergency wireless communications until public/commercial nodes can be systematically restored. This report focuses on the airborne cellular restoration concept; analyzing basic infrastructure requirements; identifying related infrastructure issues, concerns, and vulnerabilities and offers recommended solutions.

  13. 1872 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 11, NO. 5, MAY 2012 Power-Trading in Wireless Communications

    E-Print Network [OSTI]

    Jayaweera, Sudharman K.

    1872 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 11, NO. 5, MAY 2012 Power-Trading the concept of power trading in wireless communications. We present a business model using sealed bid procurement auction based game theory for power-trading in cooperative wireless communication with quality

  14. Power Control Algorithms in Wireless Communications

    E-Print Network [OSTI]

    Power Control Algorithms in Wireless Communications Judd Rohwer , Chaouki T. Abdallah , Aly El-Osery 1 Abstract This paper presents a comprehensive review of the published algorithms on power control) and Time Division Multiple Access (TDMA). 2 Introduction Power control in cellular systems is applied

  15. Graphene-enabled Wireless Communication Networks

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    Graphene-enabled Wireless Communication Networks at the Nanoscale 1 Ignacio Llatser Nanonetworking;Graphene Honeycomb lattice of carbon atoms 2-dimensional material Discovered by A. K. Geim and K. S. Novoselov 9 Graphene G. Liu, W. Stillman, S. Rumyantsev, Q. Shao, M. Shur, A. A. Balandin, "Low

  16. Distributed Power Control in Wireless Communication Systems

    E-Print Network [OSTI]

    Chronopoulos, Anthony T.

    Distributed Power Control in Wireless Communication Systems S. Jagannathan A. T. Chronopoulos, S layered structure in that we jointly address the issue of transmitted power levels in point to point commu the transmitter power at a given node increases not only the operating life of the bat- tery but also the overall

  17. Wireless communications for a multiple robot system. Master`s thesis

    SciTech Connect (OSTI)

    Bekas, A.J.

    1997-03-01T23:59:59.000Z

    A multi-disciplinary research project is being undertaken at NPS to develop a semi-autonomous robotic system to detect and clear land mines and Unexploded Ordnance (UXO). The robotic system under development consists of a land vehicle, an aerial vehicle, and a ground-based control station. Reliable communication between these three stations is needed. A traditional wire-based network requires that the vehicles be tethered and severely limits the mobility of the vehicles. A wireless Local Area Network (LAN) is proposed to provide communications between the control station and the vehicles. The objective of this thesis is to develop the physical (hardware) and logical (software) architecture of a wireless LAN that accommodates the needs of the mine/UXO project. Through an analysis of wireless modulation techniques, a market survey of wireless devices, and a field testing of wireless devices, a wireless LAN is designed to meet the technological, performance, regulation, interference, and mobility requirements of the mine/UXO project. Finally, the wireless communication protocols and the development of an error-free application protocol (specified by a FSM model and implemented in ANSI C code using Windows socket network programming) completes the wireless LAN implementation.

  18. Guidebook for Selecting Cost-Effective Wireless Communication Technologies for Intelligent Transportation Systems

    E-Print Network [OSTI]

    Texas at Austin, University of

    0-4449-P1 Guidebook for Selecting Cost-Effective Wireless Communication Technologies Research, The University of Texas at Austin Project 0-4449: Cost-Effective Strategies for Communicating-2650 Sponsoring Organization: Texas Department of Transportation Research and Technology Implementation Office P

  19. Routing protocol for anycast communications in a wireless sensor network

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Routing protocol for anycast communications in a wireless sensor network Nancy El Rachkidy. 1 Introduction In the past few years, wireless sensor networks have been used in several moni University Complexe scientifique des C´ezeaux, 63177 Aubi`ere cedex, France Abstract. In wireless sensor

  20. Energy efficiency in wireless communication systems

    DOE Patents [OSTI]

    Caffrey, Michael Paul; Palmer, Joseph McRae

    2012-12-11T23:59:59.000Z

    Wireless communication systems and methods utilize one or more remote terminals, one or more base terminals, and a communication channel between the remote terminal(s) and base terminal(s). The remote terminal applies a direct sequence spreading code to a data signal at a spreading factor to provide a direct sequence spread spectrum (DSSS) signal. The DSSS signal is transmitted over the communication channel to the base terminal which can be configured to despread the received DSSS signal by a spreading factor matching the spreading factor utilized to spread the data signal. The remote terminal and base terminal can dynamically vary the matching spreading factors to adjust the data rate based on an estimation of operating quality over time between the remote terminal and base terminal such that the amount of data being transmitted is substantially maximized while providing a specified quality of service.

  1. POWER CONTROL IN WIRELESS COMMUNICATIONS NETWORKS -FROM A

    E-Print Network [OSTI]

    Gustafsson, Fredrik

    POWER CONTROL IN WIRELESS COMMUNICATIONS NETWORKS - FROM A CONTROL THEORY PERSPECTIVE Fredrik of wireless cellular communications systems will be in focus and methods for transmitter power control. Relevant aspects of power control are discussed with emphasis on practical issues, using an automatic

  2. Graphene-enabled Wireless Communication for Massive Multicore Architectures

    E-Print Network [OSTI]

    Cabellos-Aparicio, Albert

    Graphene-enabled Wireless Communication for Massive Multicore Architectures Sergi Abadal, Eduard. This goal is feasible by using graphene-based planar antennas, which can radiate signals at the Terahertz, this is the first work that discusses the utilization of graphene-enabled wireless communication for massive

  3. IEEE Wireless Communications December 20022 1070-9916/02/$17.00 2002 IEEE SMART HOMES

    E-Print Network [OSTI]

    Holder, Lawrence B.

    IEEE Wireless Communications · December 20022 1070-9916/02/$17.00 © 2002 IEEE Agent A SMART HOMES INTRODUCTION The MavHome smart home project is a multidis- ciplinary research project at the University inhabitants. In particular, a smart home agent must be able to accurately predict mobility and other

  4. Phase patterns of coupled oscillators with application to wireless communication

    SciTech Connect (OSTI)

    Arenas, A.

    2008-01-02T23:59:59.000Z

    Here we study the plausibility of a phase oscillators dynamical model for TDMA in wireless communication networks. We show that emerging patterns of phase locking states between oscillators can eventually oscillate in a round-robin schedule, in a similar way to models of pulse coupled oscillators designed to this end. The results open the door for new communication protocols in a continuous interacting networks of wireless communication devices.

  5. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden Z H A N G Y UA N H locations to which you must communicate with to access the object). In this thesis project a publish / prenumerera nätverk och sedan används i utformningen, genomförandet, och utvärdering av en publicera

  6. DOWNHOLE POWER GENERATION AND WIRELESS COMMUNICATIONS FOR INTELLIGENT COMPLETIONS APPLICATIONS

    SciTech Connect (OSTI)

    Paul Tubel

    2003-03-24T23:59:59.000Z

    The first quarter of the Downhole Power Generation and Wireless Communications for Intelligent Completions Applications was characterized by the evaluation and determination of the specifications required for the development of the system for permanent applications in wellbores to the optimization of hydrocarbon production. The system will monitor and transmit in real time pressure and temperature information from downhole using the production tubing as the medium for the transmission of the acoustic waves carrying digital information. The most common casing and tubing sizes were determined by interfacing with the major oil companies to obtain information related to their wells. The conceptual design was created for both the wireless gauge section of the tool as well as the power generation module. All hardware for the wireless gauge will be placed in an atmospheric pressure chamber located on the outside of a production tubing with 11.4 centimeter (4-1/2 inch) diameter. This mounting technique will reduce cost as well as the diameter and length of the tool and increase the reliability of the system. The power generator will use piezoelectric wafers to generate electricity based on the flow of hydrocarbons through an area in the wellbore where the tool will be deployed. The goal of the project is to create 1 Watt of power continuously.

  7. An Optimal Power Management Policy for Wireless Communication Devices

    E-Print Network [OSTI]

    1 An Optimal Power Management Policy for Wireless Communication Devices C.F. Chiasserini, E to the problem of energy consumption in wireless networks, which exploits the dynamic power management concept to return to the active state. Power management policies are typically used to control the state

  8. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden M A N X I N G D U in upgrading their network capacity. However, an important conclusion from this thesis project be more efficient. It should be noted that the mobile terminals covered in the project are connected

  9. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems First level, 15.0 HEC Stockholm, Sweden R A F I D K A R I M is considered by many to be a driving force in the next generation Internet. This project uses very in expensive the desired user functionality. This bachelor's thesis project made it possible for a PoE powered circuit

  10. Capacity Results for Wireless Cooperative Communications with Relay Conferencing

    E-Print Network [OSTI]

    Huang, Chuan

    2012-10-19T23:59:59.000Z

    In this dissertation we consider cooperative communication systems with relay conferencing, where the relays own the capabilities to talk to their counterparts via either wired or wireless out-of-band links. In particular, we focus on the design...

  11. 1 Edgar Nett Mobile Computer Communication SS'10 Wireless LANs

    E-Print Network [OSTI]

    1 Edgar Nett Mobile Computer Communication SS'10 Wireless LANs #12;2 Edgar Nett Mobile Computer) and QoS, take their time (e.g. IEEE 802.11a,g and 802.1x) Ultimate goal: Be as good as LAN's #12;3 Edgar, wireless communication in computing networks is quite a challenge! Major Drawbacks #12;4 Edgar Nett Mobile

  12. Ubiquitous communications for wireless personal area networks in a heterogeneous environment 

    E-Print Network [OSTI]

    Ma, Junkang

    2010-06-28T23:59:59.000Z

    The widespread use of wireless technologies has led to a tremendous development in wireless communication systems. Currently, an individual mobile user may carry multiple personal devices with multiple wireless interfaces, ...

  13. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems First level, 15.0 HEC Stockholm, Sweden A B D E L A H M I D into many devices. The goal of this thesis project is to build upon this trend toward "The internet vara enkel och billig. Den kommer att trådlöst eller via USB skicka vikter till en mottagare som sedan

  14. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden N A R AYA N A N. The objective of the project is to evaluate and analyse the need for value added services in India. The report. Effekterna frĂĄn innehĂĄllsutvecklare och mjukvaruutvecklingen inom VAS diskuteras ocksĂĄ. Sedan kommer metoden

  15. A SELF SYNCHRONISED SCHEME FOR AUTOMATED COMMUNICATION IN WIRELESS

    E-Print Network [OSTI]

    Kent, University of

    attached to sensor nodes have a limited transmission range, multi-hop communication is needed to flexiblyA SELF ­ SYNCHRONISED SCHEME FOR AUTOMATED COMMUNICATION IN WIRELESS SENSOR NETWORKS #Antonio Gonzalez-Velazquez1 , Ian W Marshall2 , Lionel Sacks1 1 Department of Electronic and electric engineering

  16. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden Z I Y I X I O N G Fiber till hemmet (Fiber-to-the-Home, FTTH) har talats om sedan fiber introducerades pĂĄ 1970-talet. Det

  17. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems First level, 15.0 HEC Stockholm, Sweden J A R R A R J A F F vara lämpligt att ta små men visa steg där de först kan lära sig använda dessa verktyg för att sedan

  18. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Degree project in Communication Systems Second level, 30.0 HEC Stockholm, Sweden E L M I R A K H O-bönor till FXML. Den föreslagna algoritmen har sedan utvärderats genom automatiserade mjukvarutester

  19. Proc. of IEEE Wireless Communications and Networking Conference (WCNC), March 2003 Mobility Patterns in Microcellular Wireless Networks

    E-Print Network [OSTI]

    Peha, Jon M.

    Proc. of IEEE Wireless Communications and Networking Conference (WCNC), March 2003 Mobility Patterns in Microcellular Wireless Networks Suttipong Thajchayapong and Jon M. Peha Department- cellular wireless networks, based on measurements from the 802.11-based system that blankets the Carnegie

  20. Efficient Power Control for Broadcast in Wireless Communication Systems

    E-Print Network [OSTI]

    Chronopoulos, Anthony T.

    Efficient Power Control for Broadcast in Wireless Communication Systems A. T. Chronopoulos Computer. Therefore, controlling the transmitter power at a given node increases not only the operating life and a destination. It is essential to find effective means of power control of point-to-point, broadcasting

  1. Power Control and Utility Optimization in Wireless Communication Systems

    E-Print Network [OSTI]

    Chronopoulos, Anthony T.

    Power Control and Utility Optimization in Wireless Communication Systems Dimitrie C. Popescu@cs.utsa.edu Abstract-- In this paper we present an analysis of power control algorithms established over the past with power control algorithms based on game theory established relatively recently. The analysis shows

  2. A New Compact Multichannel Receiver for Underwater Wireless Communication Networks

    E-Print Network [OSTI]

    Abdi, Ali

    size of the proposed receiver makes it particularly useful for small unmanned underwater vehicles1 A New Compact Multichannel Receiver for Underwater Wireless Communication Networks Ali Abdi of the particle velocity, in addition to the pressure, multichannel reception can be accomplished in underwater

  3. Efficient Low Complexity Power Allocation Policies for Wireless Communication Systems

    E-Print Network [OSTI]

    Sharma, Vinod

    . Other benefits will be smaller diesel generators and batteries with longer life time. Thus, one of the primary challenges for Next Generation Networks (NGN) is to reduce energy consumption. In a BS the powerEfficient Low Complexity Power Allocation Policies for Wireless Communication Systems Guaranteeing

  4. Optimizing Communication Energy Consumption in Perpetual Wireless Nanosensor Networks

    E-Print Network [OSTI]

    Weigle, Michele

    Optimizing Communication Energy Consumption in Perpetual Wireless Nanosensor Networks Shahram}@cs.odu.edu Abstract--This paper investigates the effect of various param- eters of energy consumption. Finding the optimum combination of parameters to minimize energy consumption while satisfying the Qo

  5. A Survey of Wireless Communications for the Electric Power System

    SciTech Connect (OSTI)

    Akyol, Bora A.; Kirkham, Harold; Clements, Samuel L.; Hadley, Mark D.

    2010-01-27T23:59:59.000Z

    A key mission of the U.S. Department of Energy (DOE) Office of Electricity Delivery and Energy Reliability (OE) is to enhance the security and reliability of the nation’s energy infrastructure. Improving the security of control systems, which enable the automated control of our energy production and distribution, is critical for protecting the energy infrastructure and the integral function that it serves in our lives. The DOE-OE Control Systems Security Program provides research and development to help the energy industry actively pursue advanced security solutions for control systems. The focus of this report is analyzing how, where, and what type of wireless communications are suitable for deployment in the electric power system and to inform implementers of their options in wireless technologies. The discussions in this report are applicable to enhancing both the communications infrastructure of the current electric power system and new smart system deployments. The work described in this report includes a survey of the following wireless technologies: • IEEE 802.16 d and e (WiMAX) • IEEE 802.11 (Wi-Fi) family of a, b, g, n, and s • Wireless sensor protocols that use parts of the IEEE 802.15.4 specification: WirelessHART, International Society of Automation (ISA) 100.11a, and Zigbee • The 2, 3, and 4 generation (G )cellular technologies of GPRS/EDGE/1xRTT, HSPA/EVDO, and Long-Term Evolution (LTE)/HSPA+UMTS.

  6. LDPC code-based bandwidth efficient coding schemes for wireless communications

    E-Print Network [OSTI]

    Sankar, Hari

    2009-06-02T23:59:59.000Z

    This dissertation deals with the design of bandwidth-efficient coding schemes with Low-Density Parity-Check (LDPC) for reliable wireless communications. Code design for wireless channels roughly falls into three categories: (1) when channel state...

  7. On Energy-Aware Communication and Control Co-design in Wireless Networked Control Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    On Energy-Aware Communication and Control Co-design in Wireless Networked Control Systems Nicolas that concern energy-aware management in wireless communication and control co-design. It is argued focus on advances that concern energy-aware management in communication and control co- This work

  8. 794 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 13, NO. 2, FEBRUARY 2014 Agile Broadcast Services

    E-Print Network [OSTI]

    Franceschetti, Massimo

    , the Federal Communications Commission (FCC) has the responsibility of allocating portions of the spectrum794 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 13, NO. 2, FEBRUARY 2014 Agile Broadcast by the National Science Foundation and the UCSD Center for Wireless Communications. The material in this work

  9. Wireless Communications and Networking Technologies for Smart Grid: Paradigms and Challenges

    E-Print Network [OSTI]

    Fang, Xi; Xue, Guoliang

    2011-01-01T23:59:59.000Z

    Smart grid, regarded as the next generation power grid, uses two-way flows of electricity and information to create a widely distributed automated energy delivery network. In this work we present our vision on smart grid from the perspective of wireless communications and networking technologies. We present wireless communication and networking paradigms for four typical scenarios in the future smart grid and also point out the research challenges of the wireless communication and networking technologies used in smart grid

  10. Advanced System Design of In-Building Wireless Communication Networks Using

    E-Print Network [OSTI]

    Stancil, Daniel D.

    Advanced System Design of In-Building Wireless Communication Networks Using Ventilation Ducts design an IEEE 802.11g wireless system that uses ventilation ducts to distribute the signals throughout modifications and antenna excitations we have tried, chronicling how to best install wireless local area network

  11. Converting an Infrasound Project to Wireless Data Transmission

    E-Print Network [OSTI]

    Mountziaris, T. J.

    and their precursors. This system uses arrays of highly sensitive barometers that relay data to a central data logging the data rate and cover the transmit range required by an infrasound system. Build and test the wireless. After resolving these issues we were able to begin basic communication with a CASA developed test client

  12. Low Power Soft-Output Signal Detector Design for Wireless MIMO Communication Systems

    E-Print Network [OSTI]

    Zhang, Tong

    Low Power Soft-Output Signal Detector Design for Wireless MIMO Communication Systems Sizhong Chen-life wireless communication systems use error correcting codes (ECC) that demand soft input for decoding and Tong Zhang Electrical, Computer, and Systems Engineering Department Rensselaer Polytechnic Institute

  13. Share Risk and Energy: Sampling and Communication Strategies for Multi-Camera Wireless Monitoring

    E-Print Network [OSTI]

    Shihada, Basem

    . and a solar panel). As the radio transceiver is often the largest energy consumer, minimizing the transmittedShare Risk and Energy: Sampling and Communication Strategies for Multi-Camera Wireless Monitoring to build optimal sampling configuration by exploiting the broadcast nature of wireless communication

  14. All-optical Fog Sensor for Determining the Fog Visibility Range in Optical Wireless Communication Links

    E-Print Network [OSTI]

    Haddadi, Hamed

    All-optical Fog Sensor for Determining the Fog Visibility Range in Optical Wireless Communication is to use an all optical based fog sensor to study the atmospheric visibility of fog and its constituents on the optical wireless communication (OWC) links in a controlled laboratory test-bid. The fog sensor measures

  15. UltraUltra--Wideband (UWB)Wideband (UWB) Wireless CommunicationsWireless Communications

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    Devices Home Network DevicesHome Network Devices PC Enterprise Business MarketPC Enterprise Business----ChallengeChallenge ConclusionConclusion #12;Robert Qiu TTU 3 Mobile Devices MarketMobile Devices Market SegmentationSegmentation Nokia 3330 Add-On Devices Business / Smart Phones Basic Phones Data Devices w/ Integral Wireless Modules

  16. 3360 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 12, NO. 7, JULY 2013 Wireless Mesh Network in Smart Grid: Modeling

    E-Print Network [OSTI]

    Wang, Wenye

    in Smart Grid: Modeling and Analysis for Time Critical Communications Yi Xu, Member, IEEE, and Wenye Wang, Senior Member, IEEE Abstract--Communication networks are an indispensable com- ponent in the smart grid that are located distributively in the grid. In particular, wireless networks will be deployed widely in the smart

  17. IEEE Wireless Communications and Networking Conference (WCNC), Sept. 2000 A Novel Co-existence Algorithm for Unlicensed Fixed Power Devices

    E-Print Network [OSTI]

    Peha, Jon M.

    ]. The Federal Communications Commission (FCC) has of late increased unlicensed allocations, creating1 IEEE Wireless Communications and Networking Conference (WCNC), Sept. 2000 A Novel Co the Unlicensed Personal Communication Services (UPCS) band [2], the Unlicensed National Information

  18. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    A N D U G U L A Networking for Smart Meters KTH Information and Communication Technology #12;Networking for Smart Meters Chaitanya Dandugula dandu@kth.se June 19, 2012 Master of Science Thesis for the distribution of electricity to individual homes/consumers. A smart meter (SM) is an electronic device

  19. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Hybrid Power Control in Time Division Scheduling Wideband Code Division Multiplex Access KTH Information and Communication Technology #12;Hybrid Power Control in Time Division Scheduling Wideband Code Division Multiplex), a conventional signal to interference ratio (SIR) based power control algorithm may lead to a power rush due

  20. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    L D E N E B R O G O N Z Á L E Z On the way to enable Cellular/Wi-Fi networks interworking Energy-efficient enhancements for IEEE 802.11 WLANs KTH Information and Communication Technology #12;Energy-efficient experience, optimal use of access networks should care about energy-efficiency in order to extend device

  1. Energy Efficient Communication in Next Generation Rural-Area Wireless Networks

    E-Print Network [OSTI]

    Belding-Royer, Elizabeth M.

    of flexible wireless transmission over long- distance white space links. We theoretically and experimentally and develop Power- Rate, a protocol that dynamically adjusts transmission parameters according to channelEnergy Efficient Communication in Next Generation Rural-Area Wireless Networks Veljko Pejovic

  2. Simulation-based optimization of communication protocols for large-scale wireless sensor networks1

    E-Print Network [OSTI]

    Maróti, Miklós

    1 Simulation-based optimization of communication protocols for large-scale wireless sensor networks--The design of reliable, dynamic, fault-tolerant services in wireless sensor networks is a big challenge everyday life more comfortable, e.g. Intelligent Spaces [3]. These sensor networks often use distributed

  3. Design of indoor communication infrastructure for ultra-high capacity next generation wireless services

    E-Print Network [OSTI]

    Gordon, George S. D.

    2013-11-12T23:59:59.000Z

    [1, 2, 4]. 2 1.1. MODERN WIRELESS COMMUNICATION boards, solar panels and electricity meters could all be controlled wirelessly with the aim of creating a much more efficient energy supply system [6]. This increasing demand for and reliance upon...

  4. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, ACCEPTED FOR PUBLICATION 1 Link Energy Minimization in

    E-Print Network [OSTI]

    Heinzelman, Wendi

    , where transmit power can be flexibly adjusted to minimize the energy consumption [7IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, ACCEPTED FOR PUBLICATION 1 Link Energy Minimization in IR-UWB Based Wireless Networks Tianqi Wang, Student Member, IEEE, Wendi Heinzelman, Senior Member

  5. IEEE Wireless Communications April 200762 1536-1284/07/$20.00 2007 IEEE pilot Laptop

    E-Print Network [OSTI]

    Atkinson, Robert C

    are those located about the user's person, and remote devices are those owned/controlled by the user communications device but a diverse range of devices forming a personal area net- work (PAN of wireless processing devices. These devices will include wireless enabled laptops, PDAs, and smartphones

  6. Graduate Seminar -LDCSEE -West Virginia University Wireless Communications: A Signal Processing

    E-Print Network [OSTI]

    Reynolds, Daryl

    Graduate Seminar - LDCSEE - West Virginia University Wireless Communications: A Signal Processing Perspective Dr. Daryl Reynolds West Virginia University Morgantown, West Virginia Fall, 2002 September 7, 2002 West Virginia University Page 1 #12;Graduate Seminar - LDCSEE - West Virginia University Presentation

  7. Assessment framework for wireless V2V communication-based ITS applications

    E-Print Network [OSTI]

    Rajiwade, Swapnil Shankar

    2011-01-01T23:59:59.000Z

    Inter-vehicle communication enabled by wireless technology is an emerging area of Intelligent Transportation Systems (ITS). This technology has generated great interest among automobile manufacturers and ITS researchers ...

  8. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    K U R I Y O a n d M O H A M M A D A B D U L L A Toward a Network Based 3D Printing Service KTH Information and Communication Technology #12;Toward a Network Based3D Printing Service Laurier Ndikuriyo realized and is left as future work. Keywords: 3D-printing, MakerBot Thing-o-Matic, Replicatorg, LAMP, Open

  9. Wireless sensor systems for sense/decide/act/communicate.

    SciTech Connect (OSTI)

    Berry, Nina M.; Cushner, Adam; Baker, James A.; Davis, Jesse Zehring; Stark, Douglas P.; Ko, Teresa H.; Kyker, Ronald D.; Stinnett, Regan White; Pate, Ronald C.; Van Dyke, Colin; Kyckelhahn, Brian

    2003-12-01T23:59:59.000Z

    After 9/11, the United States (U.S.) was suddenly pushed into challenging situations they could no longer ignore as simple spectators. The War on Terrorism (WoT) was suddenly ignited and no one knows when this war will end. While the government is exploring many existing and potential technologies, the area of wireless Sensor networks (WSN) has emerged as a foundation for establish future national security. Unlike other technologies, WSN could provide virtual presence capabilities needed for precision awareness and response in military, intelligence, and homeland security applications. The Advance Concept Group (ACG) vision of Sense/Decide/Act/Communicate (SDAC) sensor system is an instantiation of the WSN concept that takes a 'systems of systems' view. Each sensing nodes will exhibit the ability to: Sense the environment around them, Decide as a collective what the situation of their environment is, Act in an intelligent and coordinated manner in response to this situational determination, and Communicate their actions amongst each other and to a human command. This LDRD report provides a review of the research and development done to bring the SDAC vision closer to reality.

  10. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 8, AUGUST 2007 3005 An Effective Resource Management Scheme for

    E-Print Network [OSTI]

    Jiang, Hai

    .S. Federal Communications Commission (FCC) approved the use of the frequency band from 3.1 to 10.6 GHz by UWBIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 8, AUGUST 2007 3005 An Effective Resource, ultra-wideband (UWB) has emerged as a promising technology in future wireless multimedia communications

  11. 958 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 10, NO. 3, MARCH 2011 Joint Sensing-Channel Selection and

    E-Print Network [OSTI]

    Wang, Xin

    . To accommodate the emerging wireless products and services, it is the Federal Communications Commission's (FCC958 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 10, NO. 3, MARCH 2011 Joint Sensing with the primary communications. In addition, we develop a stochastic optimization algorithm that can operate

  12. Efficient and Secure Wireless Communications for Advanced Metering Infrastructure in Smart Grids

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    1 Efficient and Secure Wireless Communications for Advanced Metering Infrastructure in Smart Grids metering infrastructure (AMI) [3] is a key task in smart grid [6] [4]. In such a system, each power user is equipped with a smart meter with the capability of two- way communications, which can monitor the power

  13. Soft-Input Soft-Output King Decoder for Coded MIMO Wireless Communications

    E-Print Network [OSTI]

    Soft-Input Soft-Output King Decoder for Coded MIMO Wireless Communications Giuseppe PAPA, Domenico,{domenico.ciuonzo,gianmarco.romano,pierluigi.salvorossi}@unina2.it Abstract--This paper presents a Soft-Input Soft-Output (SISO) version of the King Decoder (KD for Multiple-Input Multiple-Output (MIMO) communication systems. More specifically, four versions of the KD

  14. Energy-Aware Secure Multicast Communication In Wireless Ad-Hoc Networks Loukas Lazos, and Radha Poovendran

    E-Print Network [OSTI]

    Lazos, Loukas

    Energy-Aware Secure Multicast Communication In Wireless Ad-Hoc Networks Loukas Lazos, and Radha Poovendran Abstract-- In this paper we address the problem of efficiently securing multicast communication in energy constrained wireless ad hoc networks. We show that existing scalable key distribution techniques

  15. Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking

    E-Print Network [OSTI]

    Roy, Sumit

    among contending flows that share this link by solving a linear programming (LP) problem. A thorough Assignment for Multi-Radio Wireless Mesh Networks Fei Ye,1 Sumit Roy,1 and Zhisheng Niu2 1 University, provided the original work is properly cited. We investigate channel assignment for a multichannel wireless

  16. RNR, 4/2010 Faculty/Project Documents/Communication/FASIS Communication Plan.docx

    E-Print Network [OSTI]

    Shull, Kenneth R.

    RNR, 4/2010 Faculty/Project Documents/Communication/FASIS Communication Plan.docx FASIS Communication Plan This document is to be used as a tool to plan and track distributed information about. Plan Outline 1. Target Audiences 2. Communication Media 3. Specific Communication Events 1. Target

  17. Energy efficient RF communication systems for wireless microsensors

    E-Print Network [OSTI]

    Cho, SeongHwan, 1974-

    2002-01-01T23:59:59.000Z

    Emerging distributed wireless microsensor networks will enable the reliable and fault tolerant monitoring of the environment. Microsensors are required to operate for years from a small energy source while maintaining a ...

  18. Wireless Relay Communication System for Multiple Small Robots

    E-Print Network [OSTI]

    Baumgartner, Jeremy Gordon

    2015-01-01T23:59:59.000Z

    Field Testing In order to test a relay communication system,transmission ranges and test MANETs in a relay topologyless relay communication system is developed to test the

  19. Wireless Communication for Controlling Microgrids: Co-simulation and Performance Evaluation

    SciTech Connect (OSTI)

    Mao, Rukun [ORNL] [ORNL; Xu, Yan [ORNL] [ORNL; Li, Huijuan [ORNL] [ORNL; Li, Husheng [ORNL] [ORNL

    2013-01-01T23:59:59.000Z

    A microgrid with wireless communication links for microgrid control has been designed and developed. The complete simulation model has been developed in MatLab SimuLink with seamless integration of the power subsystem and the communication subsystem. Unlike the conventional co-simulators that usually glue two existing simulators together by creating an interface, which has a steep learning curve, the proposed simulator is a compact single-unit model. Detailed modeling of the power subsystem and communication system is presented as well as the microgrid control architecture and strategies. The impact of different communication system performances on microgrid control has been studied and evaluated in the proposed simulator.

  20. Inter/Intra-Vehicle Wireless Communication file:///X:/www-docs/cse574-06/ftp/vehicular_wireless/index.html 1 of 16 5/9/2006 7:32 PM

    E-Print Network [OSTI]

    Jain, Raj

    Inter/Intra-Vehicle Wireless Communication file:///X:/www-docs/cse574-06/ftp/vehicular_wireless/index.html 1 of 16 5/9/2006 7:32 PM Inter/Intra-Vehicle Wireless Communication Gregory S. Bickel greg vehicles, as well as between vehicles. Different concepts associated with radio frequency bands and wave

  1. On delay-sensitive communication over wireless systems

    E-Print Network [OSTI]

    Liu, Lingjia

    2009-05-15T23:59:59.000Z

    control based on the joint space of channel and buffer states are essential for delaysensitive communications....

  2. The Impact of Doppler Spreading on Delay Performance over Multi-hop Wireless Communications

    E-Print Network [OSTI]

    Haddadi, Hamed

    , such as larger transmission range, more frequency efficiency, flexible organizing and power saving, networks promising technologies to provide high data rate transmission through wireless link in multi-hop networks communications are very promising technologies for next generation network to provide high data rate transmission

  3. efficiencly IEEE Wireless Communications October 201158 1536-1284/11/$25.00 2011 IEEE

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    energy efficiency of the system, such as energy audit software and dynamic voltage control. In additiona Modulation and coding a Green energy Energy efficiencly Hardware n- IEEE Wireless Communications · October 201158 1536-1284/11/$25.00 © 2011 IEEE LIN X. CAI AND H. VINCENT POOR, PRINCETON UNIVERSITY

  4. A Simulation Comp&son of Distributed Power Control Algorithms for Wireless Communications

    E-Print Network [OSTI]

    Chronopoulos, Anthony T.

    A Simulation Comp&son of Distributed Power Control Algorithms for Wireless Communications is the power control in the mobile terminals, which is a measure of energy efficiency. Controlling the power beiween self interested usersand predicting their choice of strategies was recently used for power control

  5. Stable Distributed Power Control with High SIR Target for Cellular Wireless Communication Systems Jiayuan Chen1

    E-Print Network [OSTI]

    Haddadi, Hamed

    Stable Distributed Power Control with High SIR Target for Cellular Wireless Communication Systems power control (DPC) and propose an improved algorithm to overcome the weakness of DPC. The DPC algorithm of DPCH is slightly slower than that of DPC in the low SIR environment. Keywords - Power control, SIR

  6. Energy-Efficient Modulation Design for Reliable Communication in Wireless Networks

    E-Print Network [OSTI]

    Gursoy, Mustafa Cenk

    Energy-Efficient Modulation Design for Reliable Communication in Wireless Networks Qing Chen transmit power scenarios. We have noted that variable power schemes can attain higher energy-efficiencies. The analysis of energy-efficient modulation design is also conducted in multi- hop linear networks

  7. JOINT SOURCE-CHANNEL CODING AND POWER ALLOCATION FOR ENERGY EFFICIENT WIRELESS VIDEO COMMUNICATIONS

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    utilization of transmission energy is a critical design consideration [5]. Besides FEC, adjustmentJOINT SOURCE-CHANNEL CODING AND POWER ALLOCATION FOR ENERGY EFFICIENT WIRELESS VIDEO COMMUNICATIONS F. Zhai, Y. Eisenberg, T. N. Pappas, R. Berry, and A. K. Katsaggelos Department of Electrical

  8. Center for Research in Wireless Communications Clemson Home > Home > People > Staff > James H. Jones

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    Science Department, Clemson University 1995 - 1997 P.T. USI , IBM Agent, Consultant, Government Sales 1992. Jones James H. Jones, Jr Industrial Liaison Officer Center for Research in Wireless Communications 308) American University US Army Systems Analysis Course, Fort Monmouth, NJ 2000 ff. Lecturer in Computer

  9. OPTIMAL POWER/DELAY TRADE-OFFS IN WIRELESS COMMUNICATIONS SMALL DELAY ASYMPTOTICS

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    OPTIMAL POWER/DELAY TRADE-OFFS IN WIRELESS COMMUNICATIONS ­ SMALL DELAY ASYMPTOTICS Randall A@ece.northwestern.edu ABSTRACT In this paper we consider the optimal trade-off between av- erage transmission power and average the behavior of this trade-off in the regime of asymptotically large power and small delay. Our focus

  10. ENERGY-EFFICIENT MULTIMEDIA COMMUNICATIONS IN LOSSY MULTI-HOP WIRELESS NETWORKS

    E-Print Network [OSTI]

    Kravets, Robin

    ENERGY-EFFICIENT MULTIMEDIA COMMUNICATIONS IN LOSSY MULTI-HOP WIRELESS NETWORKS Al Harris, Cigdem is energy-efficiency due to battery- power constrained mobile nodes. The network interface is a significant to reduce the energy wasted by sending such useless data in lossy networks. Keywords: Energy-efficient

  11. CAR 2 CAR Communication Consortium WG Workshop 3 -Wireless Aspects for

    E-Print Network [OSTI]

    Gesbert, David

    1 CAR 2 CAR Communication Consortium WG Workshop 3 - Wireless Aspects for deployment StationIdentities Management MAC, IP addresses, Station ID, Driver ID, ... Shared with Security Layer (protects the identities... Forum 2011 Operational components Cross-layer Management Managing and sharing common parameters

  12. A smart multi-hop hierarchical routing protocol for efficient video communication over wireless

    E-Print Network [OSTI]

    Braun, Torsten

    in environmental monitoring, smart parking, traffic control, smart city and others [2]. In this context, smartA smart multi-hop hierarchical routing protocol for efficient video communication over wireless.costa@itec.ufpa.br, {helderp, kassiolsm, cerqueira}@ufpa.br and braun@iam.unibe.ch Abstract--For smart applications, nodes

  13. EMC/EMI Analysis in Wireless Communication Networks Department of Electrical Engineering

    E-Print Network [OSTI]

    Loyka, Sergey

    EMC/EMI Analysis in Wireless Communication Networks S. Loyka Department of Electrical Engineering: sergey.loyka@ieee.org Abstract: Main challenges in EMC/EMI modeling and simulation for modern and future difference between simulating analog and digital systems. A computationally-efficient approach for EMC

  14. Department of Computer Science and Engineering Fall 2009 Wireless Personal Locator and Communication Device (PLCD)

    E-Print Network [OSTI]

    Demirel, Melik C.

    should be able to activate a personal locator that the child will be wearing. This device will allow her Create a wearable Personal Locator and Communication Device prototype for users such as a small childPENNSTATE Department of Computer Science and Engineering Fall 2009 Wireless Personal Locator

  15. Energy efficiency of error correction for wireless communication

    E-Print Network [OSTI]

    Havinga, Paul J.M.

    -control is an important issue for mobile computing systems. This includes energy spent in the physical radio transmission and Networking Conference 1999 [7]. #12;ENERGY EFFICIENCY OF ERROR CORRECTION FOR WIRELESS COMMUNICATIONA ­ 2 on the energy of transmission and the energy of redundancy computation. We will show that the computational cost

  16. IEEE Wireless Communications April 201390 1536-1284/13/$25.00 2013 IEEE NEXT GENERATION COGNITIVE CELLULAR NETWORKS

    E-Print Network [OSTI]

    Cheng, Xiuzhen "Susan"

    by centralized authorities (e.g., the Federal Communications Commission [FCC] in the United States) that allocateIEEE Wireless Communications · April 201390 1536-1284/13/$25.00 © 2013 IEEE NEXT GENERATION communications. Based on the sensing results, CR users determine which spectrum band to use (spectrum decision

  17. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 4, NO. 6, NOVEMBER 2005 2917 On Energy Efficiency and Optimum Resource

    E-Print Network [OSTI]

    Giannakis, Georgios

    are expected to play a critical role in the design of wireless networks. This paper investigates the energy--Amplify and forward, block Markov coding, decode and forward, energy efficiency, relay transmission. I. INTRODUCTIONIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 4, NO. 6, NOVEMBER 2005 2917 On Energy

  18. ORGANIZATIONAL STRUCTURES AND COMMUNICATIONS ON THE SH 130 PROJECT

    E-Print Network [OSTI]

    Texas at Austin, University of

    0-4661-P3 ORGANIZATIONAL STRUCTURES AND COMMUNICATIONS ON THE SH 130 PROJECT Authors: James T. O 130 organizational structures and communication flows. A set of guidelines pertaining to team: Organizational Structure, Communication Flows, Design-Build, Comprehensive Development Agreement No. of Pages

  19. IEEE Wireless Communications June 201248 1536-1284/12/$25.00 2012 IEEE RECENT ADVANCES IN

    E-Print Network [OSTI]

    Shihada, Basem

    grids known as smart grids are required as the demand for energy continues to grow and more and more ADVANCES IN WIRELESS TECHNOLOGIES FOR SMART GRID INTRODUCTION The electricity supply industry has been facing significant challenges in terms of meeting the projected demand for energy, environmental issues

  20. Robust Timing Synchronization for AC-OFDM Based Optical Wireless Communications

    E-Print Network [OSTI]

    Ranjha, Bilal A; Kavehrad, Mohsen; Deng, Peng

    2015-01-01T23:59:59.000Z

    Visible light communications (VLC) have recently attracted a growing interest and can be a potential solution to realize indoor wireless communication with high bandwidth capacity for RF-restricted environments such as airplanes and hospitals. Optical based orthogonal frequency division multiplexing (OFDM) systems have been proposed in the literature to combat multipath distortion and intersymbol interference (ISI) caused by multipath signal propagation. In this paper, we present a robust timing synchronization scheme suitable for asymmetrically clipped (AC) OFDM based optical intensity modulated direct detection (IM/DD) wireless systems. Our proposed method works perfectly for ACO-OFDM, Pulse amplitude modulated discrete multitone (PAM-DMT) and discrete Hartley transform (DHT) based optical OFDM systems. In contrast to existing OFDM timing synchronization methods which are either not suitable for AC OFDM techniques due to unipolar nature of output signal or perform poorly, our proposed method is suitable for...

  1. Microwave Photonic Integrated Circuits for Millimeter-Wave Wireless Communications

    E-Print Network [OSTI]

    Carpintero, G.; Balakier, K.; Yang, Z.; Guzmán, R.C.; Corradi, A.; Jimenez, A.; Kervella, G.; Fice, M.J.; Lamponi, M.; Chitoui, M.; van Dijk, F.; Renaud, C. C.; Wonfor, A.; Bente, E.A.J.M.; Penty, R.V.; White, I.H.; Seeds, A. J.

    2014-05-06T23:59:59.000Z

    -frequency applications. Integrated transmitter modules based on InP high-electron mobility transistor (HEMT) millimeter-wave (MMW) monolithic integrated circuits chipsets were used in the most successful demonstration of a wireless link at 120 GHz, transmitting HD... , with a -3 dB linewidth of 250 kHz, the narrowest RF linewidth generated from a free running dual wavelength semiconductor laser [14]. An important drawback of this device structure is that it employs cleaved facets to define the cavity, which severely...

  2. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 3, MARCH 2008 1095 Cross Layer Design for Multiaccess

    E-Print Network [OSTI]

    Tong, Lang

    access communication setup. The proposed symmetric N user model captures physical layer parameters such as the encoding rate, transmit power and Medium Access Control (MAC) layer metrics such as queue sta- bility. TwoIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 3, MARCH 2008 1095 Cross Layer Design

  3. Energy-efficient wireless communication In this chapter we present an energy-efficient highly adaptive network

    E-Print Network [OSTI]

    Havinga, Paul J.M.

    Energy-efficient wireless communication In this chapter we present an energy-efficient highly substantial research in the hardware aspects of mobile communications energy-efficiency, such as low-power electronics, power-down modes, and energy efficient modulation. However, due to fundamental physical

  4. Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking

    E-Print Network [OSTI]

    and Its Implementation over SSL Yong Song, Konstantin Beznosov, and Victor C. M. Leung Department 2006 This paper presents multiple-channel SSL (MC-SSL), an architecture and protocol for protecting client-server communications. In contrast to SSL, which provides a single end-to-end secure channel, MC-SSL

  5. 60 GHz High Data Rate Wireless Communication System

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    amplifiers (PAs) non-linearities. OFDM requires large back-off for PAs, high stability and low phase noise.zaharia@insa-rennes.fr; ghais.el-zein@insa-rennes. Abstract ­ This paper presents the design and the realization of a 60 GHz analyzed to develop new MMW communication systems for commercial applications [1-2]. Due to the large

  6. Opportunistic Aggregation over Duty Cycled Communications in Wireless Sensor Networks

    E-Print Network [OSTI]

    Roedig, Utz

    Benson, Tony O'Donovan, Utz Roedig+, Cormac J. Sreenan. Mobile and Internet Systems Laboratory, Dept. This communication concept is used in the standard low power listening (LPL) protocol shipped with TinyOS 2.x, we firstly present an alternative framelet based low power listening implementation called Framelet

  7. EURASIP Journal on Wireless Communications and Networking 2005:5, 118 c 2005 Mohammad Hossein Manshaei et al.

    E-Print Network [OSTI]

    Turletti, Thierry

    the original work is properly cited. network, which impacts routing. Therefore, power control is not confinedEURASIP Journal on Wireless Communications and Networking 2005:5, 1­18 c 2005 Mohammad Hossein Manshaei et al. An Evaluation of Media-Oriented Rate Selection Algorithm for Multimedia Transmission

  8. 1948 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 4, NO. 4, JULY 2005 Quantifying the Power Loss When Transmit

    E-Print Network [OSTI]

    Giannakis, Georgios

    to the ideal case, we quantify the power loss due to the finite-rate constraint across the entire SNR range. Index Terms--Finite-rate feedback, multi-antenna systems, power loss, transmit beamforming. I1948 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 4, NO. 4, JULY 2005 Quantifying the Power

  9. Power-aware communication for wireless sensor-actuator systems Konstantinos Gatsis, Miroslav Pajic, Alejandro Ribeiro, and George J. Pappas

    E-Print Network [OSTI]

    Pappas, George J.

    . We present in Section II our architecture consisting of a sensor transmitting plant-aware communication protocols for a sensor transmitting plant state measurements over a wireless Markov fading channel to the current channel fading and not the plant state. We then derive an improved protocol allowing the sensor

  10. IEEE Wireless Communications December 201366 1536-1284/13/$25.00 2013 IEEE ACCEPTED FROM OPEN CALL

    E-Print Network [OSTI]

    Zhang, Yan

    power grid into the future "Internet of energy." The conventional centrally controlled electrical grid power line and one wireless communication link. The LAG is part of the electricity distribution infra CALL INTRODUCTION The smart grid is the next-generation power grid that will transform the traditional

  11. EnergyEfficient Broadcast and Multicast Trees for Reliable Wireless Communication Suman Banerjee, Archan Misra, Jihwang Yeo, Ashok Agrawala

    E-Print Network [OSTI]

    Banerjee, Suman

    1 Energy­Efficient Broadcast and Multicast Trees for Reliable Wireless Communication Suman Banerjee, Archan Misra, Jihwang Yeo, Ashok Agrawala Abstract--- We define energy­efficient broadcast and multicast network topologies. A positive acknowledg­ ment based implementation is more energy­efficient

  12. Energy-Efficient Broadcast and Multicast Trees for Reliable Wireless Communication Suman Banerjee, Archan Misra, Jihwang Yeo, Ashok Agrawala

    E-Print Network [OSTI]

    Banerjee, Suman

    1 Energy-Efficient Broadcast and Multicast Trees for Reliable Wireless Communication Suman Banerjee, Archan Misra, Jihwang Yeo, Ashok Agrawala Abstract-- We define energy-efficient broadcast and multicast-node network topolo- gies. I. INTRODUCTION Algorithms to create energy-efficient broadcast or multicast

  13. Communicating in a multi-project environment with a single-sheet project plan

    SciTech Connect (OSTI)

    Furaus, J.P.; Figueroa-McInteer, C.; Glidewell, D.D.; McKeever, P.S.; Hendrick, W.E.; Wisler, D.B.; Zavadil, J.T.

    1995-07-01T23:59:59.000Z

    In June 1992, the Corporate Construction Program Office was formed to provide single-point accountability for managing all corporate-sponsored construction projects at Sandia, answering to upper Sandia management as well as Sandia`s primary external customer, the U.S. DOE. CCPO had 3 major areas of responsibility: Congressional line-item projects (>$2 million), general plant projects (<$2 million), and corporate-funded major rearrangements (renovations). A single-sheet project plan (``summary sheet``), with monthly updates, was developed for every project. Each month, the sheets are duplicated and placed in a ``project summary book`` that is distributed through various communication channels at Sandia. Despite many modifications, the summary sheet has remained simple and useful to a broad range of project stakeholders. This paper describes how the sheet`s design and implementation enhances communication across Sandia`s complex, multi-program environment.

  14. Modeling, Performance Analysis and Comparison of Two Level Single Chain Pointer Forwarding Strategy For Location Management in Wireless Mobile Communication

    E-Print Network [OSTI]

    Kant, C R; Prakash, N; Kant, Chhaya Ravi; Prakash, Nupur

    2006-01-01T23:59:59.000Z

    Global wireless networks enable mobile users to communicate regardless of their locations. Location management is an important part of the emerging wireless and mobile technology. A Personal Communication System (PCS) network must have an efficient way to keep track of the mobile users to deliver services effectively. Global System for Mobile Communication (GSM) is a commonly accepted standard for mobility management of mobile users. Location management involves location tracking, and location information storage. Location management requires mobile users to register at various registration areas whenever they are on the move. The registration process may cause excessive signaling traffic and long service delays. To improve the efficiency of location tracking and avoid call set up delays, several strategies such as local anchor scheme, per-user caching scheme and several pointer forwarding schemes have been proposed in the past. In this paper, we propose a new "Two Level Single Chain Pointer Forwarding (TLSCP...

  15. IEEE WIRELESS COMMUNICATIONS LETTERS, VOL. 3, NO. 4, AUGUST 2014 385 Deployment Versus Data Retrieval Costs for Caches in the Plane

    E-Print Network [OSTI]

    Boucherie, Richard J.

    of wireless caches in the plane and the expected retrieval cost of a client requesting data from the caches between the cost of the cache deployment and the cost of retrieving the data from the caches. We quantifyIEEE WIRELESS COMMUNICATIONS LETTERS, VOL. 3, NO. 4, AUGUST 2014 385 Deployment Versus Data

  16. The 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'07) IMPLEMENTING BACKSCATTER RADIO FOR WIRELESS SENSOR NETWORKS

    E-Print Network [OSTI]

    (PIMRC'07) IMPLEMENTING BACKSCATTER RADIO FOR WIRELESS SENSOR NETWORKS Giovanni Vannucci Mitsubishi Electric Research Laboratories, Cambridge USA Aggelos Bletsas RadioCommunications Lab (RCL) Aristotle University of Thessaloniki, Greece Darren Leigh Mitsubishi Electric Research Laboratories, Cambridge USA

  17. Final Scientific Report - Wireless and Sensing Solutions Advancing Industrial Efficiency

    SciTech Connect (OSTI)

    Budampati, Rama; McBrady, Adam; Nusseibeh, Fouad

    2009-09-28T23:59:59.000Z

    The project team's goal for the Wireless and Sensing Solution Advancing Industrial Efficiency award (DE-FC36-04GO14002) was to develop, demonstrate, and test a number of leading edge technologies that could enable the emergence of wireless sensor and sampling systems for the industrial market space. This effort combined initiatives in advanced sensor development, configurable sampling and deployment platforms, and robust wireless communications to address critical obstacles in enabling enhanced industrial efficiency.

  18. Microwave and millimeter-wave rectifying circuit arrays and ultra-wideband antennas for wireless power transmission and communications

    E-Print Network [OSTI]

    Ren, Yu-Jiun

    2009-05-15T23:59:59.000Z

    . .......................................................................................... 67 33. The retrodirective rectenna system...................................................................... 69 34. Geometry of the broadband ring antenna: (a) two-layer structure, (b) outer ring, (c) inner ring, and (d) dual-ring (with outer... be used to diminish the reradiated harmonics. With the demand for the high-speed data rates and high capacity, broadband and ultra-wideband (UWB) antennas have already received much attention in wireless 5 communications. With an ultra...

  19. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 9, SEPTEMBER 2008 3273 Transactions Letters

    E-Print Network [OSTI]

    Qin, Xiao

    efficient and reliable data transmission, especially real time data transmission, over wireless networks Letters Improving Security of Real-Time Wireless Networks Through Packet Scheduling Xiao Qin, Mohamed--Modern real-time wireless networks require high security level to assure confidentiality of information stored

  20. Undergraduate Project: Implementing a Graphical User Interface for Real-Time Wireless Sensor Network Control and Data Visualization

    E-Print Network [OSTI]

    will be tasked with designing, implementing, and testing a graphical user interface (GUI) to control a customUndergraduate Project: Implementing a Graphical User Interface for Real-Time Wireless Sensor Network Control and Data Visualization Marc J. Rubin and Tracy Camp In this project, the undergraduate

  1. IEEE Wireless Communications December 200720 1536-1284/07/$20.00 2007 IEEE Sensing field

    E-Print Network [OSTI]

    Chen, Min

    energy consumption in the network, due to the fact that nodes closer to the sink forward more data in a wireless sensor network (WSN). Mobile agent systems employ migrating codes to facilitate flexible Sensor nodes WIRELESS SENSOR NETWORKING MIN CHEN, SERGIO GONZALEZ, AND VICTOR C. M. LEUNG, UNIVERSITY

  2. 1. Introduction Wireless networked systems arise in various communication contexts, and are becoming

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    cooperative networks multiple radios are deployed in a neighborhood. The radios connect to each other via networks, in terms of both energy efficiency and throughput (Ho et al., 2003). However, besides the many wireless links to form a multi-hop wireless network, with a few nodes acting as gateways that connect

  3. Source-Channel Communication Protocols and Tradeoffs in Active Wireless Akbar M. Sayeed and Thiagarajan Sivanadyan

    E-Print Network [OSTI]

    Sayeed, Akbar M.

    in wireless technology and offers an alter- native and complementary approach to in-network processing for rapid and energy-efficient information retrieval in wireless sensor networks. The basic architecture, and associated processing of the received multipath signal at the WIR for energy-efficient information retrieval

  4. AMI Communication Requirements to Implement Demand-Response: Applicability of Hybrid Spread Spectrum Wireless

    SciTech Connect (OSTI)

    Hadley, Mark D.; Clements, Samuel L.; Carroll, Thomas E.

    2011-09-30T23:59:59.000Z

    While holistically defining the smart grid is a challenge, one area of interest is demand-response. In 2009, the Department of Energy announced over $4 billion in grant and project funding for the Smart Grid. A significant amount of this funding was allotted to utilities for cost sharing projects to deploy Smart Grid technologies, many of whom have deployed and are deploying advanced metering infrastructure (AMI). AMI is an enabler to increase the efficiency of utilities and the bulk power grid. The bulk electrical system is unique in that it produces electricity as it is consumed. Most other industries have a delay between generation and consumption. This aspect of the power grid means that there must be enough generation capacity to meet the highest demand whereas other industries could over produce during off-peak times. This requires significant investment in generation capacity to cover the few days a year of peak consumption. Since bulk electrical storage doesn't yet exist at scale another way to curb the need for new peak period generation is through demand-response; that is to incentivize consumers (demand) to curtail (respond) electrical usage during peak periods. Of the various methods proposed for enabling demand-response, this paper will focus on the communication requirements for creating an energy market using transactional controls. More specifically, the paper will focus on the communication requirements needed to send the peak period notices and receive the response back from the consumers.

  5. Wireless device monitoring systems and monitoring devices, and associated methods

    DOE Patents [OSTI]

    McCown, Steven H; Derr, Kurt W; Rohde, Kenneth W

    2014-05-27T23:59:59.000Z

    Wireless device monitoring systems and monitoring devices include a communications module for receiving wireless communications of a wireless device. Processing circuitry is coupled with the communications module and configured to process the wireless communications to determine whether the wireless device is authorized or unauthorized to be present at the monitored area based on identification information of the wireless device. Methods of monitoring for the presence and identity of wireless devices are also provided.

  6. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 7, NO. 2, FEBRUARY 2008 685 Power-Efficient Wireless OFDMA

    E-Print Network [OSTI]

    Giannakis, Georgios

    -- Feedback communication, frequency division multiaccess, minimum energy control, optimization methods Authority of Egypt, K28 Alex-Desert Road, Cairo, Giza 12333, Egypt (e-mail: fadel.digham@gmail.com). Digital

  7. Ber analysis of iterative turbo encoded miso wireless communication system under implementation of q-ostbc scheme

    E-Print Network [OSTI]

    Kabir, M Hasnat; Zaman, Mustari; Rashed, Md Golam

    2012-01-01T23:59:59.000Z

    In this paper, a comprehensive study has been made to evaluate the performance of a MISO wireless communication system. The 4-by-1 spatially multiplexed Turbo encoded system under investigation incorporates Quasi-orthogonal space-time block coding (Q-STBC) and ML signal detection schemes under QPSK, QAM, 16PSK and 16QAM digital modulations. The simulation results elucidate that a significant improvement of system performance is achieved in QAM modulation. The results are also indicative of noticeable system performance enhancement with increasing number of iterations in Turbo encoding/decoding scheme.

  8. Green Wireless Cognition: Future Efficient Spectrum Sharing

    E-Print Network [OSTI]

    Shihada, Basem

    Underwater Vehicles The project aims to develop an unmanned fully autonomous under water vehicles (UWV Spectrum Wireless Sensor in Underwater Networks * Bell's Law of Computer Classes formulated by Gordon Bell the challenges of underwater communications by an integration of sensor and multihop networks. Human

  9. iCalm: Wearable Sensor and Network Architecture for Wirelessly Communicating and Logging Autonomic Activity

    E-Print Network [OSTI]

    Dobson, Kelly

    Widespread use of affective sensing in healthcare applications has been limited due to several practical factors, such as lack of comfortable wearable sensors, lack of wireless standards, and lack of low-power affordable ...

  10. Modeling and design of compact microwave components and systems for wireless communications and power transmission

    E-Print Network [OSTI]

    Zepeda, Paola

    2004-09-30T23:59:59.000Z

    The contribution of the work here presented involves three main topics: Wireless Power Transmission (WPT) technology, phased array systems, and microwave components design and modeling. The first topic presents the conceptual design of a WPT system...

  11. An energy-efficient communication system for ad hoc wireless and sensor networks

    E-Print Network [OSTI]

    Tetteh, William Nii Adjetey

    2007-01-01T23:59:59.000Z

    Existing ad hoc wireless and sensor network systems often trade off energy against performance. As such, it is hard to find a single deployable system that supports high data rates while maintaining energy-efficient ...

  12. Characterising the Spectral Properties and Time Variation of the In-Vehicle Wireless Communication Channel

    E-Print Network [OSTI]

    Herbert, Steven; Wassell, Ian; Loh, Tian-Hong; Rigelsford, Jonathan

    2014-06-04T23:59:59.000Z

    . Christopoulos, “Wireless networks in vehicles,” in IET Seminar on Electromagnetic Propagation in Structures and Buildings, dec. 2008, pp. 1 –6. [2] S. Herbert, T. H. Loh, and I. Wassell, “An impulse response model and q -factor estimation for vehicle cavities... theme leader, involved in physical programme formulation and strategy development. His current re- search interests include metamaterials, computational electromagnetics, small antenna, smart antennas, and wireless sensor networks. Jonathan Rigelsford...

  13. Accepted for publication in Wireless Networks, Special Issue on Multiuser Detection in Wireless Communications Adaptive Power Control and MMSE Interference

    E-Print Network [OSTI]

    Yates, Roy

    that the receiver structure is fixed and iteratively update the transmit powers of the users to provide them hand optimizes the receiver structure with the assumption that the users have fixed transmitter powers communication systems, iterative power control is used to provide each user with an acceptable level

  14. Wireless Network Intrinsic Secrecy

    E-Print Network [OSTI]

    Rabbachin, Alberto

    Wireless secrecy is essential for communication confidentiality, health privacy, public safety, information superiority, and economic advantage in the modern information society. Contemporary security systems are based on ...

  15. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 8, AUGUST 2007 2793 Analysis of Go-Back-N ARQ in Block Fading Channels

    E-Print Network [OSTI]

    Nosratinia, Aria

    , Go-Back-N protocol, throughput. I. INTRODUCTION GO-Back-N (GBN) protocol is one of three basic ARQIEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 8, AUGUST 2007 2793 Analysis of Go-Back Abstract-- This work analyzes the throughput of Go-Back-N (GBN) in block fading, a model frequently used

  16. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. XX, NO. XX, MONTH 2008 1 Redefinition of Max-Min Fairness in Multi-hop Wireless Networks

    E-Print Network [OSTI]

    Jiang, Hai

    -Min Fairness in Multi-hop Wireless Networks Ping Wang, Member, IEEE, Hai Jiang, Member, IEEE, Weihua Zhuang that it is challenging to evaluate service fairness in multi-hop wireless networks due to intra-flow contention as an alternative criterion. Based on this criterion, a new definition of max-min fairness for wireless networks

  17. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. XX, NO. XX, MONTH 2012 1 Co-Optimization of Communication and Motion

    E-Print Network [OSTI]

    Liebling, Michael

    , simplified path loss models are utilized to model the communication channels. In [14], we design an optimum, as it travels along a pre-defined trajectory, and while minimizing its motion and communication energy costs. We that in order to save energy, the robot should move faster (slower) and send less (more) bits at the locations

  18. Cross-Layer Interactions in IP Wireless Sensor Networks

    E-Print Network [OSTI]

    Ingrand, François

    for sensing applications n Environmental Sensing n low cost wireless communications n Home and building

  19. Commercial Mobile Alerting System (CMAS) CMAS is the system interface to the Wireless Emergency Alerts (WEA) service that wireless carriers

    E-Print Network [OSTI]

    Meyers, Steven D.

    is a partnership between FEMA, the Federal Communications Commission (FCC), and wireless carriers, to enhance

  20. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (SUBMITTED) 1 On Energy Efficiency and Optimum Resource

    E-Print Network [OSTI]

    Yao, Yingwei

    of attention due to the emergence of wireless ad hoc links as a flexible network architecture capable the potential of supporting high data rate multimedia transmissions, while operating in the power-limited region Resource Allocation of Relay Transmissions Yingwei Yao, Xiaodong Cai, and Georgios B. Giannakis (contact

  1. 1928 IEEE COMMUNICATIONS LETTERS, VOL. 17, NO. 10, OCTOBER 2013 A Small World Network Model for Energy Efficient Wireless Networks

    E-Print Network [OSTI]

    Elkashlan, Maged

    for Energy Efficient Wireless Networks Tiankui Zhang, Jinlong Cao, Yue Chen, Laurie Cuthbert, and Maged Elkashlan Abstract--Wireless ad hoc networks can be modeled as small world networks based on the complex of the wireless links, and 2) the impact of a wireless node on the entire network. By adopting the proposed metric

  2. Prescott: Engineering communication interface. October 2010 Engineering Communication Interface: An Engineering Multidisciplinary Project.

    E-Print Network [OSTI]

    Aloul, Fadi

    students from tertiary institutions with a sound knowledge of engineering theory and practice alone. Well is no longer sufficient to graduate engineering students from tertiary institutions with a sound knowledge1 Prescott: Engineering communication interface. October 2010 Engineering Communication

  3. Stochastic Modeling and Power Control of Time-Varying Wireless Communication Networks

    SciTech Connect (OSTI)

    Olama, Mohammed M [ORNL; Djouadi, Seddik M [ORNL; Charalambous, Prof. Charalambos [University of Cyprus

    2014-01-01T23:59:59.000Z

    Wireless networks are characterized by nodes mobility, which makes the propagation environment time-varying and subject to fading. As a consequence, the statistical characteristics of the received signal vary continuously, giving rise to a Doppler power spectral density (DPSD) that varies from one observation instant to the next. This paper is concerned with dynamical modeling of time-varying wireless fading channels, their estimation and parameter identification, and optimal power control from received signal measurement data. The wireless channel is characterized using a stochastic state-space form and derived by approximating the time-varying DPSD of the channel. The expected maximization and Kalman filter are employed to recursively identify and estimate the channel parameters and states, respectively, from online received signal strength measured data. Moreover, we investigate a centralized optimal power control algorithm based on predictable strategies and employing the estimated channel parameters and states. The proposed models together with the estimation and power control algorithms are tested using experimental measurement data and the results are presented.

  4. Hallmark Project Commercialization of the Secure SCADA Communications...

    Broader source: Energy.gov (indexed) [DOE]

    and data acquisition (SCADA) systems require a method to validate device-to-device communication and verify that information has come from a trusted source and not been altered in...

  5. Transmission Power Management for Wireless Health Applications

    E-Print Network [OSTI]

    Amini, Navid

    2012-01-01T23:59:59.000Z

    Characterization of Smart Insoles Wireless Communications .. 65   5.2.1 Effect of Packet Size on Battery

  6. Wireless Networks 6 (2000) 263277 263 Application-driven power management for mobile communication

    E-Print Network [OSTI]

    Han, Richard Y.

    2000-01-01T23:59:59.000Z

    consumed by the communication. For a high-end laptop, this can translate to 6­9% savings in the energy to be properly managed to conserve energy. In this paper, we present the design and implementation of an innovative transport level protocol capable of significantly reducing the power usage of the communication

  7. Wireless Communication for Smart Grid Applications at Distribution Level Feasibility and Requirements

    E-Print Network [OSTI]

    Namboodiri, Vinod

    and reduce the latency of event notification. Fault location is considered as an example application AND DESIGN FOR DISTRIBUTION Traditional system control and data acquisition (SCADA) level communication has

  8. 2003 4th IEEE Workshop on Signal Processing Advances in Wireless Communications

    E-Print Network [OSTI]

    Vázquez, Gregori

    will include multiple antenna to increase the link capacity or reliability [l]. In these systems, spatial-output (MISO) communication system. Specifically, we consider that the transmitted signal is space-time coded

  9. Battery-free Wireless Sensor Network For Advanced Fossil-Fuel Based Power Generation

    SciTech Connect (OSTI)

    Yi Jia

    2011-02-28T23:59:59.000Z

    This report summarizes technical progress achieved during the project supported by the Department of Energy under Award Number DE-FG26-07NT4306. The aim of the project was to conduct basic research into battery-free wireless sensing mechanism in order to develop novel wireless sensors and sensor network for physical and chemical parameter monitoring in a harsh environment. Passive wireless sensing platform and five wireless sensors including temperature sensor, pressure sensor, humidity sensor, crack sensor and networked sensors developed and demonstrated in our laboratory setup have achieved the objective for the monitoring of various physical and chemical parameters in a harsh environment through remote power and wireless sensor communication, which is critical to intelligent control of advanced power generation system. This report is organized by the sensors developed as detailed in each progress report.

  10. On Deployment of Multiple Base Stations for Energy-Efficient Communication in Wireless Sensor Networks

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lin, Yunyue; Wu, Qishi; Cai, Xiaoshan; Du, Xiaojiang; Kwon, Ki-Hyeon

    2010-01-01T23:59:59.000Z

    Data transmission from sensor nodes to a base station or a sink node often incurs significant energy consumption, which critically affects network lifetime. We generalize and solve the problem of deploying multiple base stations to maximize network lifetime in terms of two different metrics under one-hop and multihop communication models. In the one-hop communication model, the sensors far away from base stations always deplete their energy much faster than others. We propose an optimal solution and a heuristic approach based on the minimal enclosing circle algorithm to deploy a base station at the geometric center of each cluster. In themore »multihop communication model, both base station location and data routing mechanism need to be considered in maximizing network lifetime. We propose an iterative algorithm based on rigorous mathematical derivations and use linear programming to compute the optimal routing paths for data transmission. Simulation results show the distinguished performance of the proposed deployment algorithms in maximizing network lifetime.« less

  11. Hierarchical Wireless Network Architecture for Distributed Applications Zeashan Hameed Khan

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Hierarchical Wireless Network Architecture for Distributed Applications Zeashan Hameed Khan Control-- This paper describes a hierarchical wireless network architecture for real time remote coordination, Distributed monitoring, QoS adaptation, Realtime coordination I. INTRODUCTION Wireless communication networks

  12. Linking Texas irrigation: Consortium communicates research, education projects

    E-Print Network [OSTI]

    Supercinski, Danielle

    2008-01-01T23:59:59.000Z

    on the development and implementation of irrigation systems and practices in Texas, yet few efforts have been made to coordinate ongoing programs and results. With the formation of the Consortium for Irrigation Research and Education (CIRE) in 2007... research plots, and center pivot and drip irrigation systems at the Texas AgriLife Research and Extension Center at Uvalde. These plots are part of the Precision Irrigators Network project funded by Texas Water Development Board and the Rio Grande Basin...

  13. Application for CALS-CCE 2013 Summer Internship Title of project: Communicating Climate Change to New Yorkers

    E-Print Network [OSTI]

    Keinan, Alon

    Application for CALS-CCE 2013 Summer Internship Title of project: Communicating Climate Change familiarity with climate change; - Strong written and verbal communication skills; - Ability to translate County Project summary and intended outcomes (no more than 5-10 sentences): Cornell Climate Change

  14. A Virtual Infrastructure for Wireless Sensor Networks

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    &CHAPTER 4 A Virtual Infrastructure for Wireless Sensor Networks STEPHAN OLARIU and QINGWEN XU Old, and wireless communications 107 Handbook of Sensor Networks: Algorithms and Architectures, Edited by I and communication infra- structures, called wireless sensor networks, will have a significant impact on a wide array

  15. 2434 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 8, NO. 5, MAY 2009 Design and Analysis of a Distributed and

    E-Print Network [OSTI]

    Wu, Hongyi

    , distributed wireless network. I. INTRODUCTION WITH its unmatched flexibility to support the commu- nication of a Distributed and Fair Access (DFA) MAC Protocol for Multihop Wireless Networks Lei Pan, Xiaojun Cao, and Hongyi networks. The proposed protocol eliminates several problems existed in the original binary count- down (BCD

  16. X-by-wireless: a novel approach to vehicle control

    E-Print Network [OSTI]

    Hoelscher, David Louis

    2009-05-15T23:59:59.000Z

    As the cost of wireless devices approaches zero, it becomes more feasible to replace wires with wireless communication. Vehicle wiring harnesses are traditionally wired to communicate both power and information simultaneously, resulting in separate...

  17. X-by-wireless: a novel approach to vehicle control 

    E-Print Network [OSTI]

    Hoelscher, David Louis

    2009-05-15T23:59:59.000Z

    As the cost of wireless devices approaches zero, it becomes more feasible to replace wires with wireless communication. Vehicle wiring harnesses are traditionally wired to communicate both power and information simultaneously, resulting in separate...

  18. Network coding for robust wireless networks

    E-Print Network [OSTI]

    Kim, MinJi, Ph. D. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    Wireless networks and communications promise to allow improved access to services and information, ubiquitous connectivity, and mobility. However, current wireless networks are not well-equipped to meet the high bandwidth ...

  19. OIT Wireless Telemetry for Industrial Applications

    SciTech Connect (OSTI)

    Manges, WW

    2002-09-03T23:59:59.000Z

    The need for advanced wireless technology has been identified in the National Research Council publication (1) ''Manufacturing Process Controls for the Industries of the Future as a Critical Technology for the Future''. The deployment challenges to be overcome in order for wireless to be a viable option include: (1) eliminating interference (assuring reliable communications); (2) easing the deployment of intelligent, wireless sensors; (3) developing reliable networks (robust architectures); (4) developing remote power (long-lasting and reliable); and (5) developing standardized communication protocols. This project demonstrated the feasibility of robust wireless sensor networks that could meet these requirements for the harsh environments common to the DOE/OIT Industries of the Future. It resulted in a wireless test bed that was demonstrated in a paper mill and a steel plant. The test bed illustrated key protocols and components that would be required in a real-life, wireless network. The technologies for low power connectivity developed and demonstrated at the plant eased fears that the radios would interfere with existing control equipment. The same direct sequence, spread spectrum (DSSS) technology that helped assure the reliability of the connection also demonstrated that wireless communication was feasible in these plants without boosting the transmitted power to dangerous levels. Our experience and research have indicated that two key parameters are of ultimate importance: (1) reliability and (2) inter-system compatibility. Reliability is the key to immediate acceptance among industrial users. The importance cannot be overstated, because users will not tolerate an unreliable information network. A longer term issue that is at least as important as the reliability of a single system is the inter-system compatibility between these wireless sensor networks and other wireless systems that are part of our industries. In the long run, the ability of wireless sensor networks to operate cooperatively in an environment that includes wireless LANs, wireless headsets, RF heating, wireless crane controls and many other users of the electromagnetic spectrum will probably be the most important issue we can address. A network of units (Figure 1) has been developed that demonstrates the feasibility of direct-sequence spread spectrum wireless sensor networking for industrial environments. The hardware consists of a group of reprogrammable transceivers that can act as sensor nodes or network nodes or both. These units and the team that built them are the heart of a test bed development system that has been used successfully in demonstrations at various industrial sites. As previously reported, these units have been successfully tested at a paper mill. More recently, these units were utilized in a permanent installation at a steel mill. Both of these applications demonstrated the ease with which a new network could be installed, and the reality that DSSS units can operate successfully in plants where narrow band transmitters had previously caused interference with plant operations.

  20. OFF-THE-RECORD COMMUNICATION FOR JORDAN COVE ENERGY PROJECT, L.P., FE DKT. NO. 12-32-LNG

    Broader source: Energy.gov [DOE]

    Posting of Off-the-Record CommunicationThe documents linked below were sent to the Department of Energy (DOE) in reference to the Jordan Cove Energy Project, L.P., FE Dkt. No. 12-32-LNG proceeding....

  1. High performance drive circuits for integrated microLED/CMOS arrays for visible light communication (VLC) 

    E-Print Network [OSTI]

    Mahmood Zuhdi, Ahmad Wafi; Zuhdi, Ahmad

    2015-06-29T23:59:59.000Z

    Wireless communication is a form of communication that has been around for over hundreds of years and is the fastest growing segment of the communication industry. Today, wireless communication has become an essential ...

  2. International Journal of Communication Networks and Information Security (IJCNIS) Vol. 1, No. 2, August 2009 Toward a Gigabit Wireless Communications System

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    consumption as well as issues such as amplifier linearity, and oscillator phase noise. Moreover, to determine.Rakotondrainibe@insa-rennes.fr Abstract: This paper presents the design and the realization of a hybrid wireless Gigabit Ethernet indoor of a residential environment. The system uses low complexity baseband processing modules. A byte synchronization

  3. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 10, OCTOBER 2007 1 Distance-Bounding Based Defense Against

    E-Print Network [OSTI]

    Wu, Dapeng Oliver

    -Bounding Based Defense Against Relay Attacks in Wireless Networks Caimu Tang, Member, IEEE, and Dapeng Oliver Wu invulnerable to the relay attack. We propose to use the order statistic for the detection of relay attackers outlier test. I. INTRODUCTION RECENT years have witnessed the urgent needs to secure networks of low power

  4. Metameric Modulation for Diffuse Visible Light Communications with Constant Ambient Lighting

    E-Print Network [OSTI]

    Little, Thomas

    untapped for wireless communications. Advancements in light emitting diode (LED) technology are making

  5. Wireless Network Security and Interworking MINHO SHIN, JUSTIN MA, ARUNESH MISHRA, AND WILLIAM A. ARBAUGH

    E-Print Network [OSTI]

    Wireless Network Security and Interworking MINHO SHIN, JUSTIN MA, ARUNESH MISHRA, AND WILLIAM A, in- terworking between heterogeneous wireless networks is extremely important for ubiquitous and high communication technologies cover a whole spec- trum from wireless personal area networks (WPANs

  6. Achieving Quality of Service Guarantees for Delay Sensitive Applications in Wireless Networks 

    E-Print Network [OSTI]

    Abedini, Navid

    2012-10-19T23:59:59.000Z

    the delay issue in some major instances of wireless communication networks. First, we study a wireless content distribution network (CDN), in which the requests for the content may have service deadlines. Our wireless CDN consists of a media vault...

  7. Maximum Network Lifetime in Wireless Sensor Networks with Adjustable Sensing Ranges

    E-Print Network [OSTI]

    Wu, Jie

    1 Maximum Network Lifetime in Wireless Sensor Networks with Adjustable Sensing Ranges Mihaela problem in wireless sensor networks with adjustable sensing range. Communication and sensing consume Wireless sensor networks (WSNs) constitute the foundation of a broad range of applications related

  8. Energy-efficient wireless networking for multimedia applications

    E-Print Network [OSTI]

    Havinga, Paul J.M.

    Energy-efficient wireless networking for multimedia applications (Wireless Communications ­ In this paper we identify the most prominent problems of wireless multimedia networking and present several state-of-the-art solutions with a focus on energy efficiency. Three key problems in networked wireless

  9. Wireless Sensors and Networks for Advanced Energy Management

    SciTech Connect (OSTI)

    Hardy, J.E.

    2005-05-06T23:59:59.000Z

    Numerous national studies and working groups have identified low-cost, very low-power wireless sensors and networks as a critical enabling technology for increasing energy efficiency, reducing waste, and optimizing processes. Research areas for developing such sensor and network platforms include microsensor arrays, ultra-low power electronics and signal conditioning, data/control transceivers, and robust wireless networks. A review of some of the research in the following areas will be discussed: (1) Low-cost, flexible multi-sensor array platforms (CO{sub 2}, NO{sub x}, CO, humidity, NH{sub 3}, O{sub 2}, occupancy, etc.) that enable energy and emission reductions in applications such as buildings and manufacturing; (2) Modeling investments (energy usage and savings to drive capital investment decisions) and estimated uptime improvements through pervasive gathering of equipment and process health data and its effects on energy; (3) Robust, self-configuring wireless sensor networks for energy management; and (4) Quality-of-service for secure and reliable data transmission from widely distributed sensors. Wireless communications is poised to support technical innovations in the industrial community, with widespread use of wireless sensors forecasted to improve manufacturing production and energy efficiency and reduce emissions. Progress being made in wireless system components, as described in this paper, is helping bring these projected improvements to reality.

  10. EXPERIMENTATION AND ANALYSIS FOR UNIFIED PACKET-BASED WIRELESS NETWORKS

    E-Print Network [OSTI]

    Lockwood, John W.

    - rent state of wireless data communication, including the setup of an operating wireless testbed designed to address many of these issues. 1 Introduction The current state of wireless communications can be di- vided into two broad categories based on the designed purpose of particular devices. These two

  11. Security in Wireless Data Networks: A Survey Paper

    E-Print Network [OSTI]

    Jain, Raj

    Security in Wireless Data Networks: A Survey Paper Abdel-Karim R. Al Tamimi abdelkarim.tamimi@gmail.com Abstract Both security and wireless communication will remain an interesting subject for years to come jeopardizing the communicated content. This paper illustrates the key concepts of security, wireless networks

  12. Cooperative multicast in wireless networks

    E-Print Network [OSTI]

    Li, Fulu, 1970-

    2005-01-01T23:59:59.000Z

    Wireless communication has fundamental impairments due to multi-path fading, attenuation, reflections, obstructions, and noise. More importantly, it has historically been designed to mimic a physical wire; in concept other ...

  13. Communication devices for network-hopping communications and methods of network-hopping communications

    DOE Patents [OSTI]

    Buttles, John W. (Idaho Falls, ID)

    2011-12-20T23:59:59.000Z

    Wireless communication devices include a software-defined radio coupled to processing circuitry. The processing circuitry is configured to execute computer programming code. Storage media is coupled to the processing circuitry and includes computer programming code configured to cause the processing circuitry to configure and reconfigure the software-defined radio to operate on each of a plurality of communication networks according to a selected sequence. Methods for communicating with a wireless device and methods of wireless network-hopping are also disclosed.

  14. Communication devices for network-hopping communications and methods of network-hopping communications

    DOE Patents [OSTI]

    Buttles, John W

    2013-04-23T23:59:59.000Z

    Wireless communication devices include a software-defined radio coupled to processing circuitry. The system controller is configured to execute computer programming code. Storage media is coupled to the system controller and includes computer programming code configured to cause the system controller to configure and reconfigure the software-defined radio to operate on each of a plurality of communication networks according to a selected sequence. Methods for communicating with a wireless device and methods of wireless network-hopping are also disclosed.

  15. Dynamic channel allocation in satellite and wireless networks

    E-Print Network [OSTI]

    Sun, Jun, 1975-

    2007-01-01T23:59:59.000Z

    The objective of this thesis is to understand how to utilize wireless channels in a fair and efficient manner within a multi-users communication environment. We start by exploring the allocation of a single wireless downlink ...

  16. A wireless, low power, asynchronous, multi-sensor, temperature network

    E-Print Network [OSTI]

    Levy, Daniel M. G. H. (Daniel Matthew Guy Ho), 1979-

    2003-01-01T23:59:59.000Z

    Wireless communication is not new. Radio and television broadcasting, as well as air traffic control have used wireless signals in their products for decades. The transmitters for these applications require large antennas ...

  17. Computing the Capacity Region of a Wireless Network

    E-Print Network [OSTI]

    Gummadi, Ramakrishna

    We consider a wireless network of n nodes that communicate over a common wireless medium under some interference constraints. Our work is motivated by the need for an efficient and distributed algorithm to determine the ...

  18. Efficient multi-resolution data dissemination in wireless sensor networks

    E-Print Network [OSTI]

    Chen, Jian

    2005-11-01T23:59:59.000Z

    A large-scale distributed wireless sensor network is composed of a large collection of small low-power, unattended sensing devices equipped with limited memory, processors, and short-range wireless communication. The network is capable...

  19. Topology management protocols in ad hoc wireless sensor networks

    E-Print Network [OSTI]

    Kim, Hogil

    2009-05-15T23:59:59.000Z

    A wireless sensor network (WSN) is comprised of a few hundred or thousand au-tonomous sensor nodes spatially distributed over a particular region. Each sensornode is equipped with a wireless communication device, a small microprocessor, anda battery...

  20. 1238 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 52, NO. 8, AUGUST 2004 An Improved Two-State Turbo-SPC Code for Wireless Communication Systems

    E-Print Network [OSTI]

    Ping, Li

    1238 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 52, NO. 8, AUGUST 2004 An Improved Two-State Turbo-SPC as special two-state turbo single-parity-check (SPC) codes [4]. For rates and nearly all code lengths, CT been devised in [5] based on Hadamard codes. The problem can also be treated using turbo-SPC codes [4

  1. Can we talk? Communications management for the Waste Isolation Pilot Plant, a complex nuclear waste management project

    SciTech Connect (OSTI)

    Goldstein, S.A.; Pullen, G.M.; Brewer, D.R.

    1995-07-01T23:59:59.000Z

    Sandia Nuclear Waste Management Program is pursuing for DOE an option for permanently disposing radioactive waste in deep geologic repositories. Included in the Program are the Waste Isolation Pilot Plant (WIPP) Project for US defense program mixed waste the Yucca Mountain Project (YMP) for spent power reactor fuel and vitrified high-level waste, projects for other waste types, and development efforts in environmental decision support technologies. WIPP and YMP are in the public arena, of a controversial nature, and provide significant management challenges. Both projects have large project teams, multiple organization participants, large budgets, long durations, are very complex, have a high degree of programmatic risk, and operate in an extremely regulated environment requiring legal defensibility. For environmental projects like these to succeed, SNL`s Program is utilizing nearly all areas in PMI`s Project Management Body of Knowledge (PMBOK) to manage along multiple project dimensions such as the physical sciences (e.g., geophysics and geochemistry; performance assessment; decision analysis) management sciences (controlling the triple constraint of performance, cost and schedule), and social sciences (belief systems; public participation; institutional politics). This discussion focuses primarily on communication challenges active on WIPP. How is the WIPP team meeting the challenges of managing communications?`` and ``How are you approaching similar challenges?`` will be questions for a dialog with the audience.

  2. Role of pilot projects and public acceptance in developing wireless power transmission as an enabling technology for space solar power systems

    SciTech Connect (OSTI)

    Woodell, M.I. [Bivings Woodell, Inc., Washington, DC (United States)] [Bivings Woodell, Inc., Washington, DC (United States); Schupp, B.W. [Raytheon Electronic Systems, Marlborough, MA (United States)] [Raytheon Electronic Systems, Marlborough, MA (United States)

    1996-12-31T23:59:59.000Z

    In all system concepts for delivering space solar power to terrestrial power systems, wireless power transmission (WPT) is identified as a critical link in the technology chain. To realize the full potential of WPT as an enabling technology for the development of space power systems, the technology needs to (1) be demonstrated as a commercially viable, low risk technology, and (2) be shown to be acceptable to the public. If WPT`s full potential is to be realized, its initial applications must be carefully chosen and demonstrated through a series of pilot projects which will develop both the technology and its public acceptance. This paper examines the role of pilot projects and how they will play an increasingly important role in the development and acceptance of WPT as an enabling technology for space solar power systems. Recognizing that public acceptance is the ultimate determinant of the commercial success or failure of a technology, the paper then explores the role of public opinion in the commercialization process of space solar power systems utilizing WPT. A framework that begins to define the process required to realize the full commercial potential of wireless power transmission is established. 21 refs., 1 fig., 2 tabs.

  3. IEEE Wireless Communications December 20046 1536-1284/04/$20.00 2004 IEEE This research was sup-

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    in a facility or sensors planted underground for precision agriculture). Creating a network of these sensors can- nal BS(s).1 A BS may be a fixed or mobile node capable of connecting the sensor network to an existing applications, sensor nodes are constrained in energy supply and communication bandwidth. Thus, innovative

  4. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, ACCEPTED FOR PUBLICATION 1 A QoS-aware Underwater Optimization Framework

    E-Print Network [OSTI]

    Pompili, Dario

    .1- 1 s). Mobile Autonomous Underwater Vehicles (AUVs) can conserve energy by waiting for the `best, Autonomous Underwater Vehicles (AUVs), equipped with underwater sensors, are used for information gathering Optimization Framework for Inter-vehicle Communication using Acoustic Directional Transducers Baozhi Chen

  5. Master's Thesis A Secure and Energy Efficient Communication

    E-Print Network [OSTI]

    Kim, Kwangjo

    Master's Thesis A Secure and Energy Efficient Communication Scheme for Wireless Sensor Networks and Technology 2011 #12;A Secure and Energy Efficient Communication Scheme for Wireless Sensor Networks #12;A Secure and Energy Efficient Communication Scheme for Wireless Sensor Networks Advisor : Professor Kwangjo

  6. Edgar Nett Mobile Computer Communication SS'14 1 General Overview

    E-Print Network [OSTI]

    Edgar Nett Mobile Computer Communication SS'14 1 General Overview Wireless Transmission Medium Layer Mobile Transport Layer WLAN Security #12;Edgar Nett Mobile Computer Communication SS'14 2 Wireless LANs #12;Edgar Nett Mobile Computer Communication SS'14 3 Characteristics of Wireless LANs Advantages

  7. SYNTHESIS LECTURES ON COMMUNICATION NETWORKS

    E-Print Network [OSTI]

    Huang, Jianwei

    Pricing Jean Walrand, Series Editor Jianwei Huang Lin Gao SYNTHESIS LECTURES ON COMMUNICATION NETWORKS CM& Morgan Claypool Publishers& Wireless Network Pricing Jean Walrand, Series Editor Jianwei Huang Lin Gao SYNTHESIS LECTURES ON COMMUNICATION NETWORKS CM& Morgan Claypool Publishers& Wireless Network Pricing Jean

  8. WIRELESS MINE-WIDE TELECOMMUNICATIONS TECHNOLOGY

    SciTech Connect (OSTI)

    Zvi H. Meiksin

    2004-03-01T23:59:59.000Z

    A comprehensive mine-wide, two-way wireless voice and data communication system for the underground mining industry was developed. The system achieves energy savings through increased productivity and greater energy efficiency in meeting safety requirements within mines. The mine-wide system is comprised of two interfaced subsystems: a through-the-earth communications system and an in-mine communications system. The mine-wide system permits two-way communication among underground personnel and between underground and surface personnel. The system was designed, built, and commercialized. Several systems are in operation in underground mines in the United States. The use of these systems has proven they result in considerable energy savings. A system for tracking the location of vehicles and people within the mine was also developed, built and tested successfully. Transtek's systems are being used by the National Institute of Occupational Safety and Health (NIOSH) in their underground mine rescue team training program. This project also resulted in a spin-off rescue team lifeline and communications system. Furthermore, the project points the way to further developments that can lead to a GPS-like system for underground mines allowing the use of autonomous machines in underground mining operations, greatly reducing the amount of energy used in these operations. Some products developed under this program are transferable to applications in fields other than mining. The rescue team system is applicable to use by first responders to natural, accidental, or terrorist-caused building collapses. The in-mine communications system can be installed in high-rise buildings providing in-building communications to security and maintenance personnel as well as to first responders.

  9. In Proc. of 4th IEEE Int'l Conference on Mobile and Wireless Communications Networks, Stockholm, Sweden, Sep. 9-11, 2002 Congestion Sensitive Downlink Power Control

    E-Print Network [OSTI]

    Siris, Vasilios A.

    , Sweden, Sep. 9-11, 2002 Congestion Sensitive Downlink Power Control for Wideband CDMA Systems Vasilios A-- We present a model for efficient and robust power control in the downlink of Wideband CDMA wireless. INTRODUCTION Current power control algorithms for wireless systems in- crease the power when the interference

  10. Advanced Electrical, Optical and Data Communication Infrastructure Development

    SciTech Connect (OSTI)

    Simon Cobb

    2011-04-30T23:59:59.000Z

    The implementation of electrical and IT infrastructure systems at the North Carolina Center for Automotive Research , Inc. (NCCAR) has achieved several key objectives in terms of system functionality, operational safety and potential for ongoing research and development. Key conclusions include: (1) The proven ability to operate a high speed wireless data network over a large 155 acre area; (2) Node to node wireless transfers from access points are possible at speeds of more than 50 mph while maintaining high volume bandwidth; (3) Triangulation of electronic devices/users is possible in areas with overlapping multiple access points, outdoor areas with reduced overlap of access point coverage considerably reduces triangulation accuracy; (4) Wireless networks can be adversely affected by tree foliage, pine needles are a particular challenge due to the needle length relative to the transmission frequency/wavelength; and (5) Future research will use the project video surveillance and wireless systems to further develop automated image tracking functionality for the benefit of advanced vehicle safety monitoring and autonomous vehicle control through 'vehicle-to-vehicle' and 'vehicle-to-infrastructure' communications. A specific advantage realized from this IT implementation at NCCAR is that NC State University is implementing a similar wireless network across Centennial Campus, Raleigh, NC in 2011 and has benefited from lessons learned during this project. Consequently, students, researchers and members of the public will be able to benefit from a large scale IT implementation with features and improvements derived from this NCCAR project.

  11. Wireless Infrastructure for Performing Monitoring, Diagnostics, and Control HVAC and Other Energy-Using Systems in Small Commercial Buildings

    SciTech Connect (OSTI)

    Patrick O'Neill

    2009-06-30T23:59:59.000Z

    This project focused on developing a low-cost wireless infrastructure for monitoring, diagnosing, and controlling building systems and equipment. End users receive information via the Internet and need only a web browser and Internet connection. The system used wireless communications for: (1) collecting data centrally on site from many wireless sensors installed on building equipment, (2) transmitting control signals to actuators and (3) transmitting data to an offsite network operations center where it is processed and made available to clients on the Web (see Figure 1). Although this wireless infrastructure can be applied to any building system, it was tested on two representative applications: (1) monitoring and diagnostics for packaged rooftop HVAC units used widely on small commercial buildings and (2) continuous diagnosis and control of scheduling errors such as lights and equipment left on during unoccupied hours. This project developed a generic infrastructure for performance monitoring, diagnostics, and control, applicable to a broad range of building systems and equipment, but targeted specifically to small to medium commercial buildings (an underserved market segment). The proposed solution is based on two wireless technologies. The first, wireless telemetry, is used for cell phones and paging and is reliable and widely available. This risk proved to be easily managed during the project. The second technology is on-site wireless communication for acquiring data from sensors and transmitting control signals. The technology must enable communication with many nodes, overcome physical obstructions, operate in environments with other electrical equipment, support operation with on-board power (instead of line power) for some applications, operate at low transmission power in license-free radio bands, and be low cost. We proposed wireless mesh networking to meet these needs. This technology is relatively new and has been applied only in research and tests. This proved to be a major challenge for the project and was ultimately abandoned in favor of a directly wired solution for collecting sensor data at the building. The primary reason for this was the relatively short ranges at which we were able to effectively place the sensor nodes from the central receiving unit. Several different mesh technologies were attempted with similar results. Two hardware devices were created during the original performance period of the project. The first device, the WEB-MC, is a master control unit that has two radios, a CPU, memory, and serves as the central communications device for the WEB-MC System (Currently called the 'BEST Wireless HVAC Maintenance System' as a tentative commercial product name). The WEB-MC communicates with the local mesh network system via one of its antennas. Communication with the mesh network enables the WEB-MC to configure the network, send/receive data from individual motes, and serves as the primary mechanism for collecting sensor data at remote locations. The second antenna enables the WEB-MC to connect to a cellular network ('Long-Haul Communications') to transfer data to and from the NorthWrite Network Operations Center (NOC). A third 'all-in-one' hardware solution was created after the project was extended (Phase 2) and additional resources were provided. The project team leveraged a project funded by the State of Washington to develop a hardware solution that integrated the functionality of the original two devices. The primary reason for this approach was to eliminate the mesh network technical difficulties that severely limited the functionality of the original hardware approach. There were five separate software developments required to deliver the functionality needed for this project. These include the Data Server (or Network Operations Center), Web Application, Diagnostic Software, WEB-MC Embedded Software, Mote Embedded Software. Each of these developments was necessarily dependent on the others. This resulted in a challenging management task - requiring high bandwidth communications among

  12. Wireless Critical Process Control in oil and gas refinery plants

    E-Print Network [OSTI]

    Savazzi, Stefano

    Wireless Critical Process Control in oil and gas refinery plants Stefano Savazzi1, Sergio Guardiano control in in- dustrial plants and oil/gas refineries. In contrast to wireline communication, wireless of an oil refinery is illustrated in Fig. 1: typical locations of wireless devices used for re- mote control

  13. Distributed Medium Access Control for Next Generation CDMA Wireless Networks

    E-Print Network [OSTI]

    Zhuang, Weihua

    Distributed Medium Access Control for Next Generation CDMA Wireless Networks Hai Jiang, Princeton wireless networks are expected to have a simple infrastructure with distributed control. In this article, we consider a generic distributed network model for future wireless multi- media communications

  14. Energy Efficiency of Encryption Schemes Applied to Wireless Sensor Networks

    E-Print Network [OSTI]

    Heys, Howard

    University. 2. Based on "An Analysis of Link Layer Encryption Schemes in Wireless Sensor Networks" by X In this paper, we focus on the energy efficiency of secure communication in wireless sensor networks (WSNs). Our - wireless sensor networks; security; encryption; cryptographic algorithm; stream cipher; block cipher 1

  15. SECURITY FOR WIRELESS NETWORKS AND DEVICES

    E-Print Network [OSTI]

    connections. Users of handheld devices such as personal digital assis tants (PDAs) and cell phones can synMarch 2003 SECURITY FOR WIRELESS NETWORKS AND DEVICES Shirley Radack, Editor, Computer Security organizations and users have found that wireless communications and devices are convenient, flexible, and easy

  16. A study of the relationship between trust and the effective communication of information within project teams of large high tech organizations

    E-Print Network [OSTI]

    Scherer, Alyson

    2008-01-01T23:59:59.000Z

    This study investigates the effects trust has on the truthfulness of communications and its effectiveness within a project team. The research focuses specifically on organizational context, the situational forces that exist ...

  17. A comparative study of Rayleigh fading wireless channel simulators 

    E-Print Network [OSTI]

    Sathini Ramaswamy, Vishnu Raghavan

    2006-04-12T23:59:59.000Z

    Computer simulation is now increasingly being used for design and performance evaluation of communication systems. When simulating a mobile wireless channel for communication systems, it is usually assumed that the fading ...

  18. A comparative study of Rayleigh fading wireless channel simulators

    E-Print Network [OSTI]

    Sathini Ramaswamy, Vishnu Raghavan

    2006-04-12T23:59:59.000Z

    Computer simulation is now increasingly being used for design and performance evaluation of communication systems. When simulating a mobile wireless channel for communication systems, it is usually assumed that the fading process is a random variate...

  19. FaultTolerant Distributed Algorithms in Sparse Ad Hoc Wireless Networks

    E-Print Network [OSTI]

    Fault­Tolerant Distributed Algorithms in Sparse Ad Hoc Wireless Networks (SPAWN) BETTINA WEISS communication technologies, wireless ad hoc networks are increasingly commonplace nowadays. Spontaneous (``ad wireless sensor networks and disaster area communication systems. It is also a major enabling technology

  20. Virtual infrastructure for wireless ad hoc networks

    E-Print Network [OSTI]

    Gilbert, Seth, 1976-

    2007-01-01T23:59:59.000Z

    One of the most significant challenges introduced by ad hoc networks is coping with the unpredictable deployment, uncertain reliability, and erratic communication exhibited by emerging wireless networks and devices. The ...

  1. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 31, NO. 5, MAY 2013 825 Guest Editorial

    E-Print Network [OSTI]

    Wang, Cheng-Xiang

    Spectrum and Energy Efficient Design of Wireless Communication Networks: Part I Yang Yang, Xiaohu You-of-the-art solutions for joint spectrum and energy efficient design (SEED) and optimization of wireless communication

  2. System and method for time synchronization in a wireless network

    DOE Patents [OSTI]

    Gonia, Patrick S. (Maplewood, MN); Kolavennu, Soumitri N. (Blaine, MN); Mahasenan, Arun V. (Kerala, IN); Budampati, Ramakrishna S. (Maple Grove, MN)

    2010-03-30T23:59:59.000Z

    A system includes multiple wireless nodes forming a cluster in a wireless network, where each wireless node is configured to communicate and exchange data wirelessly based on a clock. One of the wireless nodes is configured to operate as a cluster master. Each of the other wireless nodes is configured to (i) receive time synchronization information from a parent node, (ii) adjust its clock based on the received time synchronization information, and (iii) broadcast time synchronization information based on the time synchronization information received by that wireless node. The time synchronization information received by each of the other wireless nodes is based on time synchronization information provided by the cluster master so that the other wireless nodes substantially synchronize their clocks with the clock of the cluster master.

  3. Routing for Wireless Multi Hop Networks Unifying and Distinguishing Features

    E-Print Network [OSTI]

    Graham, Nick

    -to-end communication, wireless communication provides flexible deployment and use, cost reduction, mobility, network dynamic network conditions due to interference, loss of signal power with distance and freedom of mobilityRouting for Wireless Multi Hop Networks ­ Unifying and Distinguishing Features Technical Report

  4. Energy Optimal Transmission Scheduling in Wireless Sensor Networks

    E-Print Network [OSTI]

    Koksal, Can Emre

    1 Energy Optimal Transmission Scheduling in Wireless Sensor Networks Rahul Srivastava, Student networks is energy efficient communication of time-critical data. Energy wastage can be caused by failed. INTRODUCTION Energy efficient communication is one of the key concerns in the design of wireless sensor

  5. TRANSFORMING THE SRS ENVIRONMENTAL BUSINESS: COMMUNICATION AND APPLIED PROJECT MANAGEMENT PRINCIPLES

    SciTech Connect (OSTI)

    Saldivar, E.

    2010-01-20T23:59:59.000Z

    A process for communicating information relating to core business functions that also encourages improving internal communications has been established at SRS. This process continues to grow and strengthen as the multiple Contractors, Regulators and DOE-SR relationships mature. A number of management communication tools have been initiated, retooled, rebooted or continued with enhancements to ensure appropriate information is communicated to all levels with environmental responsibility at SRS. The types of information that are the focus of this improved process are feedback from the customer and from informational exchange forums (i.e., Challenge Opportunity and Resolution (COR), SRS Regulatory Integration Team (SRIT), Environmental Quality Management Division (EQMD), Senior Environmental Managers Council (SEMC), etc.). These forums, SRS environmental functions centralization, and the creation of a Regulatory Integration process allows for cross-functional decision making, problem solving and information sharing that involves the field organizations, Environmental Compliance Authorities (ECA), Subject Matter Experts (SME), DOE and the Regulators. Numerous examples of effective decision-making and problem solving will be shared. Lessons Learned involving inadequate communications and the resulting impacts on the environment, customer satisfaction, and relationships will also be discussed. Additionally, the focus on improved communications also includes maintaining awareness of business activities. The tools being utilized to facilitate the continuing improvement of internal communications include weekly staff meetings for all individuals within the organization, quarterly ECA and SME meeting, quarterly Regulatory Integration & Environmental Services (RI&ES) All-Hands meetings hosted by the Director, bi-weekly EQMD and EQMD Lite meetings with the customer, bi-annual SRIT meetings, and COR meetings on an as need basis. In addition, an existing Required Reading Program is being formally utilized in RI&ES to ensure all individuals get formal notification of new/revised business documents. In all cases, the development of environmental communication topics that occur at SRS have a cost-scope-schedule basis that can be linked to delivery of environmental services.

  6. 2014 NSERC USRA Summer Projects Power Line Communications for Electric Vehicles

    E-Print Network [OSTI]

    Leung, Victor C.M.

    .M. Leung (vleung@ece.ubc.ca) 1. Project description In today's electric and conventional combustion engine

  7. Ultra high-speed Mobile Information and CommunicationUMIC Prof. Fadhel M. Ghannouchi

    E-Print Network [OSTI]

    and smart-grid wireless communication networks. This talk will highlight the why it is important to reduce

  8. Flexible network wireless transceiver and flexible network telemetry transceiver

    DOE Patents [OSTI]

    Brown, Kenneth D. (Grain Valley, MO)

    2008-08-05T23:59:59.000Z

    A transceiver for facilitating two-way wireless communication between a baseband application and other nodes in a wireless network, wherein the transceiver provides baseband communication networking and necessary configuration and control functions along with transmitter, receiver, and antenna functions to enable the wireless communication. More specifically, the transceiver provides a long-range wireless duplex communication node or channel between the baseband application, which is associated with a mobile or fixed space, air, water, or ground vehicle or other platform, and other nodes in the wireless network or grid. The transceiver broadly comprises a communication processor; a flexible telemetry transceiver including a receiver and a transmitter; a power conversion and regulation mechanism; a diplexer; and a phased array antenna system, wherein these various components and certain subcomponents thereof may be separately enclosed and distributable relative to the other components and subcomponents.

  9. Modeling and evaluation of aerial layer communications system architectures

    E-Print Network [OSTI]

    Ajemian, Stephen P

    2014-01-01T23:59:59.000Z

    Airborne networks are being developed to provide communications services in order to augment space-based and terrestrial communications systems. These airborne networks must provide point to point wireless communications ...

  10. On the Characteristics of Spectrum-Agile Communication Networks

    E-Print Network [OSTI]

    Liu, Xin

    , both the Federal Communications Commission (FCC) and the federal government have made important1 On the Characteristics of Spectrum-Agile Communication Networks Xin Liu Wei Wang Department almost all spectrum suitable for wireless communications have been allocated, preliminary studies

  11. The RACER (risk analysis, communication, evaluation, and reduction) stakeholder environmental data transparency project for Los Alamos National Laboratory

    SciTech Connect (OSTI)

    Echohawk, John Chris [Los Alamos National Laboratory; Dorries, Alison M [Los Alamos National Laboratory; Eberhart, Craig F [Los Alamos National Laboratory; Werdel, Nancy [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    The RACER (Risk Analysis, Communication, Evaluation, and Reduction) project was created in 2003, as an effort to enhance the Los Alamos National Laboratory's ability to effectively communicate the data and processes used to evaluate environmental risks to the public and the environment. The RACER project staff consists of members of Risk Assessment Corporation, Los Alamos National Laboratory (LANL), and the New Mexico Environment Department (NMED). RACER staff worked closely with members of the community, tribal governments, and others within NMED and LANL to create innovative tools and a process that could provide information to regulators, LANL and the community about the sources of public health risk and ecological impact from LAN L operations. The RACER Data Analysis Tool (DA T) provides the public with webbased access to environmental measurement data collected in and around the LANL site. Its purpose is to provide a 'transparent' view to the public of all data collected by LANL and NMED regarding the LANL site. The DAT is available to the public at 'www.racernm.com'.

  12. Wireless Sensor Networks for Structural Health Monitoring by Sukun Kim

    E-Print Network [OSTI]

    California at Berkeley, University of

    Wireless Sensor Networks for Structural Health Monitoring by Sukun Kim Research Project Submitted James W. Demmel Second Reader (Date) #12;Wireless Sensor Networks for Structural Health Monitoring Copyright Spring 2005 by Sukun Kim #12;i Abstract Wireless Sensor Networks for Structural Health Monitoring

  13. Securing Wireless Networks from ARP Cache Presented to

    E-Print Network [OSTI]

    Stamp, Mark

    Securing Wireless Networks from ARP Cache Poisoning A Project Presented to The Faculty _____________________________________________________________ APPROVED FOR THE UNIVERSITY #12;Roney Philip CS298 Report SJSUi ABSTRACT Securing Wireless Networks from ARP Cache Poisoning by Roney Philip Wireless networks have become an integral part of today's networks

  14. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS: SPECIAL ISSUES ON WIRELESS AD HOC NETWORKS 1 Principles and Protocols for Power Control in

    E-Print Network [OSTI]

    Kawadia, Vikas

    Principles and Protocols for Power Control in Wireless Ad Hoc Networks Vikas Kawadia and P. R. Kumar-- Transmit power control is a prototypical example of a cross-layer design problem. The transmit power level consumption. The challenge is to determine where in the architecture the power control problem

  15. ECEN 621-600: Mobile Wireless Networking, Spring 2009 A Course Targeting at State-of-The-Art Knowledge In Advanced Wireless

    E-Print Network [OSTI]

    Zhang, Xi

    ECEN 621-600: Mobile Wireless Networking, Spring 2009 A Course Targeting at State-of-The-Art Knowledge In Advanced Wireless Communications and Networking Design & Analysis Techniques INSTRUCTOR: Prof, protocols, and modeling techniques for mobile wireless networks. The course aims at equipping graduate

  16. The impact of Wireless Sensor Networks on the society, industry and everyday life by is forecasted

    E-Print Network [OSTI]

    Flener, Pierre

    , senso- rics, antennas, wireless communication, microwave technologies, energy harvesting, computer and generate energy, · make sensor networks self-configuring, robust and maintenance-free up to 10 years

  17. Communications and Collaboration Keep San Francisco VA Medical Center Project on Track

    SciTech Connect (OSTI)

    Federal Energy Management Program

    2001-05-16T23:59:59.000Z

    This case study about energy saving performance contacts (ESPCs) presents an overview of how the Veterans Affairs Medical Center in San Francisco established an ESPC contract and the benefits derived from it. The Federal Energy Management Program instituted these special contracts to help federal agencies finance energy-saving projects at their facilities.

  18. Mobility in Wireless Sensor Networks

    E-Print Network [OSTI]

    Mehta, Ankur Mukesh

    2012-01-01T23:59:59.000Z

    Channel-Specific Wireless Sensor Network Path Data”. In:Average Power in Wireless Sensor Networks through Data Ratedesign space of wireless sensor networks”. In: IEEE Wireless

  19. Post-Cleanup Communication and Records Plan for Project Chariot, Alaska

    SciTech Connect (OSTI)

    None

    2005-01-01T23:59:59.000Z

    The Project Chariot Site resides in a remote and isolated area in the Cape Thompson region of northwest Alaska (Figure 1-1). The Project Chariot Site was a proposed test location for the U.S. Atomic Energy Commission (AEC) Plowshare Program in 1958. In 1962, the United States Geological Survey (USGS) conducted environmental studies using less than 30 mCi of short-lived mixed fission products. The location of the studies was about 0.75 mile (1.2 km) north of the Project Chariot Site base camp. Radioactive material was spread over the 12 test plots: 10 were used for overland transport tracer tests, one for a sediment transport experiment, and one for an 18-hour percolation test. The 11 test plots constituted an area less than 0.9 percent of an acre. At the conclusion of the August 1962 tracer test, USGS scraped the ground surface of the test plots and the percolation test location. The scraped soil and vegetation were mixed with native soil, deposited in a mound on two of the plots, and covered with 4 ft (1.22 m) of uncontaminated soil (DOE 1993).

  20. Processing module operating methods, processing modules, and communications systems

    DOE Patents [OSTI]

    McCown, Steven Harvey; Derr, Kurt W.; Moore, Troy

    2014-09-09T23:59:59.000Z

    A processing module operating method includes using a processing module physically connected to a wireless communications device, requesting that the wireless communications device retrieve encrypted code from a web site and receiving the encrypted code from the wireless communications device. The wireless communications device is unable to decrypt the encrypted code. The method further includes using the processing module, decrypting the encrypted code, executing the decrypted code, and preventing the wireless communications device from accessing the decrypted code. Another processing module operating method includes using a processing module physically connected to a host device, executing an application within the processing module, allowing the application to exchange user interaction data communicated using a user interface of the host device with the host device, and allowing the application to use the host device as a communications device for exchanging information with a remote device distinct from the host device.

  1. Wireless Networks 8, 7384, 2002 2002 Kluwer Academic Publishers. Manufactured in The Netherlands.

    E-Print Network [OSTI]

    Levy, Hanoch

    Wireless Networks 8, 73­84, 2002 2002 Kluwer Academic Publishers. Manufactured in The Netherlands cost of tracking mobile users is a crucial issue in wireless networks. Some of the previous strategies demand for personal communication services (PCS) will require future wireless networks to gracefully ac

  2. A wireless sensor network (WSN) may run different applications for different

    E-Print Network [OSTI]

    Braun, Torsten

    A wireless sensor network (WSN) may run different applications for different tasks, such as event Wireless Sensor Networks, which sup- ports common management tasks such as visualization, monitoring, (re the communication gateway between these sensor sub-networks, the WSN and the Internet. Wireless mesh nodes perform

  3. Optimized Node Selection for Compressive Sleeping Wireless Sensor Networks

    E-Print Network [OSTI]

    Chen, Wei; Wassell, Ian J.

    2015-02-05T23:59:59.000Z

    1Optimized Node Selection for Compressive Sleeping Wireless Sensor Networks Wei Chen, Member, IEEE, and Ian J. Wassell Abstract—In this paper, we propose an active node selection framework for compressive sleeping wireless sensor networks (WSNs... development oftechnologies in sensing, computing and communication has made it possible to employ wireless sensor networks (WSNs) to continuously monitor physical phenomena in a variety of applications, for example air quality monitoring, wildlife tracking...

  4. Saving Energy by Adjusting Transmission Power in Wireless Sensor Networks

    E-Print Network [OSTI]

    Rowe, Neil C.

    Saving Energy by Adjusting Transmission Power in Wireless Sensor Networks Xiao Chen Department and communication areas. Energy-efficient communication is an important issue in WSNs because of the limited power propose methods to reduce communication energy by minimizing the total sensor trans- mission power

  5. Signal Compression in Wireless Sensor By Marco F. Duarte1

    E-Print Network [OSTI]

    sensor networks (WSNs) has been motivated by important applications such as climate change tracking is an important tool for reducing the communication costs and increasing the lifetime of wireless sensor network communication rate could be achieved. This, however, would require communication between the sensors or prior

  6. An Integrated System Simulation Approach for Wireless Networked Control Systems

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    Vanderbilt University Nashville, TN, USA Abstract--Cyber-Physical Systems (CPS), such as networked control wireless networks. Accurate modeling of these communication networks is essential in the design and verification of CPS. Controller design needs to take into ac- count the wireless channel characteristics (e

  7. Virtualizing Power Cords by Wireless Power Transmission and Energy Harvesting

    E-Print Network [OSTI]

    Tentzeris, Manos

    technology can be called the virtualization of the communication line, wireless power transmissionVirtualizing Power Cords by Wireless Power Transmission and Energy Harvesting Yoshihiro Kawahara1 for the virtualization of power cords for electrical devices. The first approach is a new concept for routing electric

  8. Graphene-enabled Wireless Networks-on-Chip (Invited Paper)

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    Graphene-enabled Wireless Networks-on-Chip (Invited Paper) Ignacio Llatser, Sergi Abadal, Albert,abadal,amestres,acabello}@ac.upc.edu, eduard.alarcon@upc.edu Abstract--Graphene-enabled Wireless Communications (GWC) advocate for the use of graphene-based plasmonic antennas, or graphennas, which take advantage of the plasmonic properties

  9. Exploring In-Situ Sensing Irregularity in Wireless Sensor Networks

    E-Print Network [OSTI]

    Kim, Dae-Shik

    Exploring In-Situ Sensing Irregularity in Wireless Sensor Networks Joengmin Hwang, Tian He Introduction Wireless sensor networks are envisioned to support vari- ety of applications such as military network systems. Compared to the diversified solutions pro- duced for communication among sensor nodes

  10. A Realistic Power Consumption Model for Wireless Sensor Network Devices

    E-Print Network [OSTI]

    Hempstead, Mark

    . Recent analyses of WSN energy efficiency have been widely based on a sensor node power consumption model1 A Realistic Power Consumption Model for Wireless Sensor Network Devices Qin Wang, Mark Hempstead}@eecs.harvard.edu Abstract-- A realistic power consumption model of wireless communication subsystems typically used in many

  11. Quality of service analysis for audio over cellular voice networks and cellular wireless wide area networks

    E-Print Network [OSTI]

    Malik, Omair S. (Omair Safwan)

    2007-01-01T23:59:59.000Z

    Cellular Wireless Wide Area Networks (WWANs) are most prevalent and offer high-bandwidth data transfer. We believe WWANs can be availed for voice communications employing Voice Over IP technologies. Such a communication ...

  12. Opportunities of Wireless Sensors and Controls for Building Operation

    SciTech Connect (OSTI)

    Kintner-Meyer, Michael CW

    2004-09-30T23:59:59.000Z

    This paper characterizes commercially available wireless technologies that are suitable for use in commercial buildings. It describes two demonstration projects of wireless sensors and their integration into existing control networks, and discusses their cost per sensor, their ease of installation, and their reliability. The author will discuss the operational and energy benefits of the wireless sensors and report on the energy and cost savings estimates. The paper will conclude with some practical considerations for the installation of wireless sensors and provide a future outlook for wireless technologies in buildings applications.

  13. Low Power Adaptive Equaliser Architectures for Wireless LMMSE Receivers 

    E-Print Network [OSTI]

    Tennant, Mark P

    2007-01-01T23:59:59.000Z

    Power consumption requires critical consideration during system design for portable wireless communication devices as it has a direct influence on the battery weight and volume required for operation. Wideband Code ...

  14. Wireless reconfigurability of fault-tolerant processing systems

    E-Print Network [OSTI]

    Tang, Melinda Y

    2008-01-01T23:59:59.000Z

    This thesis examines the use of wireless data buses for communication in a real-time computer system designed for applications with high reliability requirements. This work is based on the Draper Laboratory Software Based ...

  15. The multicast capacity region of large wireless networks

    E-Print Network [OSTI]

    Shah, Devavrat

    We study the problem of determining the multicast capacity region of a wireless network of n nodes randomly located in an extended area and communicating with each other over Gaussian fading channels. We obtain an explicit ...

  16. Self-Triggered Control over Wireless Sensor and Actuator Networks

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    . Following this trend, several vendors are introducing devices that communicate over low-power wireless and the §National Science Foun- dation award 0834771. adjust heating, ventilation and air conditioning (HVAC

  17. Exploring Architectural Challenges in Scalable Underwater Wireless Sensor Networks

    E-Print Network [OSTI]

    Shi, Zhijie Jerry

    1 Exploring Architectural Challenges in Scalable Underwater Wireless Sensor Networks Z. Jerry Shi and Yunsi Fei Department of Computer Science and Engineering Department of Electrical and Computer sensor networks (UWSNs): Aquatic applications Design challenges in UWSNs ­ Communications ­ Networking

  18. Analyzing video compression for transporting over wireless fading channels

    E-Print Network [OSTI]

    Kannan, Karthik

    2006-10-30T23:59:59.000Z

    Wireless video communication is becoming increasingly popular these days with new applications such as TV on mobile and video phones. Commercial success of these applications requires superior video quality at the receiver. So it is imperative...

  19. Relative Span Weighted Localization of Uncooperative Nodes in Wireless Networks

    E-Print Network [OSTI]

    Barbeau, Michel

    911) provisions [1] as the Federal Communications Commission (FCC) in the U.S. [2] Under Phase II Radio- television Telecommunications Commission (CRTC) to regulate the same wireless En- hanced 911 (E

  20. 3818 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 11, NO. 10, OCTOBER 2012 RNP-SA: Joint Relay Placement and Sub-Carrier

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    (Sherman) Shen, Fellow, IEEE Abstract--Green energy is emerging as a promising alternative energy source.e., RNs powered by green energy, and optimize resource allocation to ensure full network connectivity-generation radio communication networks. Recent advances in green energy technology make it possible Manuscript

  1. Energy Efficient Cooperative Communication A Dissertation

    E-Print Network [OSTI]

    Brown III, Donald R.

    Energy Efficient Cooperative Communication by Jie Yang A Dissertation Submitted to the Faculty of the energy efficiency of cooperative wireless communication systems. Cooperative communication is a technique study of the energy efficiency of two-source cooperative transmission under differing assumptions about

  2. Design of a mobile coastal communications buoy

    E-Print Network [OSTI]

    Hendry-Brogan, Meghan

    2004-01-01T23:59:59.000Z

    In response to a growing interest in networked communications at sea as well as the needs of our vital commercial fishing industry, the Northeast Consortium funded a novel research initiative to establish wireless acoustic ...

  3. Multiagent Coordination in Microgrids via Wireless Networks

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    is indispensable to incorporate more distributed energy resource (DER) units, such as the distributed generation load (or generator) or islanded as a self-sustained power system, which significantly simplifies by localized elec- tricity generation, storage, and consumption. Wireless communication is a promising means

  4. Multiagent coordination in microgrids via wireless networks

    E-Print Network [OSTI]

    Hao Liang; Atef Abdrabou

    The future smart grid is expected to be an integration of intelligent microgrids featured by localized electricity generation, storage, and consumption. Wireless communication is a promising means to facilitate pervasive microgrid monitoring and control at a high flexibility and low deployment cost

  5. Localized radio frequency communication using asynchronous transfer mode protocol

    DOE Patents [OSTI]

    Witzke, Edward L. (Edgewood, NM); Robertson, Perry J. (Albuquerque, NM); Pierson, Lyndon G. (Albuquerque, NM)

    2007-08-14T23:59:59.000Z

    A localized wireless communication system for communication between a plurality of circuit boards, and between electronic components on the circuit boards. Transceivers are located on each circuit board and electronic component. The transceivers communicate with one another over spread spectrum radio frequencies. An asynchronous transfer mode protocol controls communication flow with asynchronous transfer mode switches located on the circuit boards.

  6. Control over Wireless NetworksControl over Wireless Networks Karl Henrik Johansson

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    Control over Wireless NetworksControl over Wireless Networks Karl Henrik Johansson School wireless networksOutline: Control over wireless networks · Motivating examples · Benefits and barriersMotivation for control over wireless networkscontrol over wireless networks · Wireless industrial automation

  7. IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 55, NO. 10, OCTOBER 2007 1867 V-BLAST-Based Virtual MIMO for Distributed Wireless Sensor Networks

    E-Print Network [OSTI]

    Jayaweera, Sudharman K.

    sensor net- works (WSNs) [1], [2]. A similar concept named virtual antenna array (VAA) has been explored Research/Creative Projects Award (URCA). The author was with the Department of Electrical and Computer Engineering, Wichita State University, Wichita, KS 67260 USA. He is now with the De- partment of Electrical

  8. Investigation of optical wireless systems for indoor broadband networks

    E-Print Network [OSTI]

    Kouroupetroglou, Georgios

    in the light emitting diodes (LEDs) of a visible light communication (VLC) system are investigated. Keywords emitting diodes (LEDs) emitting in the visible spectral range has recently gained increasing attention been reported covering bit rates up to 50 Mb/s [5]. Optical wireless communications with (light

  9. STOCHASTIC CONTROL FOR DISTRIBUTED SYSTEMS WITH APPLICATIONS TO WIRELESS

    E-Print Network [OSTI]

    Huang, Minyi

    communication systems, power control is important at the user level in order to minimize energy requirements, a class of stochastic control problems is for- mulated which includes a fading channel model and a powerSTOCHASTIC CONTROL FOR DISTRIBUTED SYSTEMS WITH APPLICATIONS TO WIRELESS COMMUNICATIONS Minyi Huang

  10. Turning Renewable Energy Ambitions into Successful Projects: A Study of How Communication can be Improved in the Wave Power Sector. 

    E-Print Network [OSTI]

    Lancaster, Gregor

    2011-11-24T23:59:59.000Z

    The purpose of the dissertation was to research how to improve communication between marine renewable energy developers and the stakeholders involved in their development. The process was qualitative and involved analysing publications...

  11. Wireless Power Transmission: An Obscure History, Possibly a Bright Future.

    E-Print Network [OSTI]

    La Rosa, Andres H.

    of living. All of these trends point to an energy demand that will grow at even a larger rate. Wireless of its own. Figure 1. Projected yearly growth in world energy consumption. (3) 2 #12;History of Wireless the use of microwaves because of the economic and energy efficiency that can be leveraged by products

  12. Design and initial deployment of the wireless local area networking infrastructure at Sandia National Laboratories.

    SciTech Connect (OSTI)

    Long, John P.; Hamill, Michael J.; Mitchell, M. G.; Miller, Marc M.; Witzke, Edward L.; Wiener, Dallas J

    2006-11-01T23:59:59.000Z

    A major portion of the Wireless Networking Project at Sandia National Laboratories over the last few years has been to examine IEEE 802.11 wireless networking for possible use at Sandia and if practical, introduce this technology. This project team deployed 802.11a, b, and g Wireless Local Area Networking at Sandia. This report examines the basics of wireless networking and captures key results from project tests and experiments. It also records project members thoughts and designs on wireless LAN architecture and security issues. It documents some of the actions and milestones of this project, including pilot and production deployment of wireless networking equipment, and captures the team's rationale behind some of the decisions made. Finally, the report examines lessons learned, future directions, and conclusions.

  13. How the coming wireless revolution will impact manufacturing

    SciTech Connect (OSTI)

    Shourbaji, A.A.; Manges, W.W.

    1996-01-01T23:59:59.000Z

    Wireless technology refers to signal transmission such as microwave, infrared (IR), laser beams, and radio frequency (RF) in which the transmitting medium is wireless. Until recently, wireless applications were limited to specialized cases in select industries and research laboratories. Most commercial applications today are directly associated with vast, growing industries: cellular telephones, computer local area networks (LANs), and computer wide- area networks (WANs). The rising cost of hard wiring signals in manufacturing facilities along with the significant advances in digital and communications technologies have allowed the wireless technology to emerge as an attractive and cost-effective alternative. In this paper, technical issues associated with two applications will be described in which wireless systems have been successfully developed and applied by a team from Oak Ridge National Laboratory (ORNL). These wireless applications demonstrate the technical challenges and benefits realized by wireless technologies. A more comprehensive wireless concept aimed at automating large-scale manufacturing facilities in a unified approach using wireless links will also be discussed.

  14. Wireless Power Transfer

    ScienceCinema (OSTI)

    None

    2013-11-19T23:59:59.000Z

    Wireless Power Transfer is an innovative approach using magnetic resonance coupling of air core transformers designed for today's growing plug-in electric vehicle market. This technology can provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. With a system where you have to physically plug in there are a number of occasions where the owner could very well forget to charge the vehicle. For stationary applications (like charging of a PHEV at home), ORNL's innovative wireless power transfer technology adds a convenience factor compared to actually plugging in which will mean that the vehicle will have a full charge every morning. Electric vehicle charging must be safe, compact and efficient in order to be convenient for customers. By reconfiguring the transformer and altering the resonance frequency, energy is transferred to the battery with lower energy losses and with fewer demands on the primary circuit by the rest of the transformer system. The ORNL discovery shows that sufficient power for the battery can be transferred from the primary to secondary circuits without significant energy losses if the operating frequency is set at 50% to 95% of the resonance frequency of the circuit. The electrical power is then transmitted to the chargeable battery, which is electrically coupled to the secondary circuit through the air core transformer. Some advantages include: Reduced energy losses during transfer of energy to the battery; A charge potential that is relatively unaffected by up to 25% misalignment of vehicle; and Other receiving components draw less power from the primary circuit. These advantages allow wireless power technology applications to expand at the workplace and beyond as the demand for EV rises. For vehicles that operate over a fixed route such as busses and shuttle vehicles, Wireless Power Transfer (WPT) means that a smaller battery pack can be used. In the traditional system, the battery pack is designed to accommodate the needs of the entire route or shift. With WPT the battery can be downsized because it can be charged when the vehicle stops on its route (a rental car shuttle bus, for example, can charge when it waits in the terminal and again when it waits at the rental car place. Thus the battery only needs enough charge to get to the next stop. This decrease in battery size means significant cost savings to electrify the vehicle. This technology enables efficient "opportunity charging stations" for predefined routes and planned stops reducing down time. Charging can occur in minutes. This improvement also eliminates the harmful emissions that occur in garages while buses are at idle during charging. In larger cities, dynamic charging offers an even greater impact utilizing existing infrastructure. As vehicles travel along busy freeways and interstate systems, wireless charging can occur while the vehicle is in motion. With this technology a vehicle essentially has unlimited electric range while using a relatively small battery pack. In-motion charging stations use vehicle sensors to alert the driver. Traveling at normal speeds, sensors establish in-motion charging. WPT transmit pads sequentially energize to the negotiated power level based on vehicle speed and its requested charging energy. Lower power when vehicle speed is slow and much higher power for faster moving vehicles. Vehicle to Infrastructure communications (V2I) coordinates WPT charging level according to on-board battery pack state-of-charge. V2I activates the roadway transmit pads placing them in standby mode and negotiates charging fee based on prevailing grid rate and vehicle energy demand. Dynamic charging would allow electricity to supply a very large fraction of the energy for the transportation sector and reduce greatly petroleum consump

  15. Wireless Power Transfer

    SciTech Connect (OSTI)

    None

    2013-07-22T23:59:59.000Z

    Wireless Power Transfer is an innovative approach using magnetic resonance coupling of air core transformers designed for today's growing plug-in electric vehicle market. This technology can provide a convenient, safe and flexible means to charge electric vehicles under stationary and dynamic conditions. Plug-in Electric Vehicles (PEV) are burdened by the need for cable and plug charger, galvanic isolation of the on-board electronics, bulk and cost of this charger and the large energy storage system (ESS) packs needed. With a system where you have to physically plug in there are a number of occasions where the owner could very well forget to charge the vehicle. For stationary applications (like charging of a PHEV at home), ORNL's innovative wireless power transfer technology adds a convenience factor compared to actually plugging in which will mean that the vehicle will have a full charge every morning. Electric vehicle charging must be safe, compact and efficient in order to be convenient for customers. By reconfiguring the transformer and altering the resonance frequency, energy is transferred to the battery with lower energy losses and with fewer demands on the primary circuit by the rest of the transformer system. The ORNL discovery shows that sufficient power for the battery can be transferred from the primary to secondary circuits without significant energy losses if the operating frequency is set at 50% to 95% of the resonance frequency of the circuit. The electrical power is then transmitted to the chargeable battery, which is electrically coupled to the secondary circuit through the air core transformer. Some advantages include: Reduced energy losses during transfer of energy to the battery; A charge potential that is relatively unaffected by up to 25% misalignment of vehicle; and Other receiving components draw less power from the primary circuit. These advantages allow wireless power technology applications to expand at the workplace and beyond as the demand for EV rises. For vehicles that operate over a fixed route such as busses and shuttle vehicles, Wireless Power Transfer (WPT) means that a smaller battery pack can be used. In the traditional system, the battery pack is designed to accommodate the needs of the entire route or shift. With WPT the battery can be downsized because it can be charged when the vehicle stops on its route (a rental car shuttle bus, for example, can charge when it waits in the terminal and again when it waits at the rental car place. Thus the battery only needs enough charge to get to the next stop. This decrease in battery size means significant cost savings to electrify the vehicle. This technology enables efficient "opportunity charging stations" for predefined routes and planned stops reducing down time. Charging can occur in minutes. This improvement also eliminates the harmful emissions that occur in garages while buses are at idle during charging. In larger cities, dynamic charging offers an even greater impact utilizing existing infrastructure. As vehicles travel along busy freeways and interstate systems, wireless charging can occur while the vehicle is in motion. With this technology a vehicle essentially has unlimited electric range while using a relatively small battery pack. In-motion charging stations use vehicle sensors to alert the driver. Traveling at normal speeds, sensors establish in-motion charging. WPT transmit pads sequentially energize to the negotiated power level based on vehicle speed and its requested charging energy. Lower power when vehicle speed is slow and much higher power for faster moving vehicles. Vehicle to Infrastructure communications (V2I) coordinates WPT charging level according to on-board battery pack state-of-charge. V2I activates the roadway transmit pads placing them in standby mode and negotiates charging fee based on prevailing grid rate and vehicle energy demand. Dynamic charging would allow electricity to supply a very large fraction of the energy for the transportation sector and reduce greatly petroleum consump

  16. Wireless mesh networks have emerged as a promising technology for providing ubiquitous access to mobile users, and quick and easy extension of local area net-

    E-Print Network [OSTI]

    Hou, Y. Thomas

    Abstract Wireless mesh networks have emerged as a promising technology for providing ubiquitous for multiple-description video communications in wireless mesh networks. We aim to answer the following in wireless mesh 190890-8044/08/$25.00 © 2008 IEEE TT IEEE Network · January/February 2008 Shiwen Mao, Auburn

  17. On Resource Allocation for Communication Systems with Delay and Secrecy Constraints

    E-Print Network [OSTI]

    Balasubramanian, Anantharaman

    2011-02-22T23:59:59.000Z

    This dissertation studies fundamental limits of modern digital communication systems in presence/absence of delay and secrecy constraints. In the first part of this dissertation, we consider a typical time-division wireless communication system...

  18. Wireless Urban Sensing Systems

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    enabled by personal wireless sensing devices introduces newpublic or personal servers, but also on mobile devices. For

  19. NeuralWISP: An Energy-Harvesting Wireless Neural Interface with 1-m Range

    E-Print Network [OSTI]

    Herr, Hugh

    that a neural interface communicate and receive power wirelessly. Previous systems [4][5] have achieved wireless operation by using a near-field inductive link to transmit power and data. However, these systems require. It includes a custom low-noise, low power amplifier IC for processing the neural signal and an analog spike

  20. Special Issue on Broadband Wireless Networking Published online: 23 May 2006

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    efficiently and flexibly create new services and business models based on the component-based architecture-based wireless/wired Interworking,'' Cheng et al. discuss efficient resource allocation techniques for a policy Science + Business Media, LLC 2006 Wireless communication revolution has made funda- mental changes

  1. Published in IET Wireless Sensor Systems Received on 24th May 2012

    E-Print Network [OSTI]

    Atkinson, Robert C

    of Wireless Sensor Network and Communication, SIMIT, Shanghai, People's Republic of China 3 Department of fixed copper wires has obvious advantages. Wireless sensor networks (WSNs) offer the data collection required, which is particularly important for engine testing and instrumentation applications. In order

  2. Towards a Wireless Building Management System Requiring no Change to Upper-layer Protocols

    E-Print Network [OSTI]

    Wang, Dan

    communications to support transmission, design protocols for sensor networking and conduct application that converts existing wired sensor network into wireless without changing upper layer protocols decent understanding on the design within a wireless sensor network, e.g., OS, programming languages

  3. Minimum-Energy Broadcast Using Practical Directional Antennas in All-Wireless Networks

    E-Print Network [OSTI]

    Li, Xiang-Yang

    Minimum-Energy Broadcast Using Practical Directional Antennas in All-Wireless Networks Sabyasachi-- Energy-efficient broadcast communication is an important problem in wireless ad hoc networks. Previously, minimum-energy broadcast that exploits the broadcast nature of radio transmission has been studied

  4. Application-Based Collision Avoidance in Wireless Sensor Networks Thanos Stathopoulos

    E-Print Network [OSTI]

    Heidemann, John

    - tional burden to the already energy constrained system. In this paper, we present an application by a factor of 8 and the energy consump- tion by up to 50%. 1. Introduction Wireless sensor networks consist radio communication, the largest source of energy drain. In general, collisions on wireless networks can

  5. EAGR: Energy Aware Greedy Routing Scheme for Wireless Ad hoc Networks Sachin Sharma

    E-Print Network [OSTI]

    Dharmaraja, S.

    EAGR: Energy Aware Greedy Routing Scheme for Wireless Ad hoc Networks Sachin Sharma Tejas Networks Delhi, New Delhi, India (email: dharmar@maths.iitd.ac.in) Abstract This paper presents Energy Aware distributed nodes that communicate over a wireless link. In this paper we present a scalable, Energy Aware

  6. Taming Uncertainties in Wireless Messaging for Automotive Cyber-Physical-Systems

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Taming Uncertainties in Wireless Messaging for Automotive Cyber-Physical-Systems Hongwei Zhang Wireless networking for automotive CPS Today's vehicles are much more than a mechanical device, and complex to the scalability of vehicular communication system, which is a basic element of automotive cyber-physical systems

  7. Multiple-Objective Metric for Placing Multiple Base Stations in Wireless Sensor Networks

    E-Print Network [OSTI]

    Liblit, Ben

    positioning in sensor networks based on directional antennas [6], but it addresses secure positioningMultiple-Objective Metric for Placing Multiple Base Stations in Wireless Sensor Networks Soo Kim in wireless sensor networks. First, the ratio of sensor nodes which can communicate with a base station via

  8. Development of a measuring system for parking position Can wireless charging of electric vehicles deliver its full

    E-Print Network [OSTI]

    Zhao, Yuxiao

    of our projects aims to obtain a better understanding of wireless charging of electric vehicles regarding connection of electric vehicles to the grid. In order for wireless charging to be successful1 Development of a measuring system for parking position ­ Can wireless charging of electric

  9. Systems and methods for performing wireless financial transactions

    DOE Patents [OSTI]

    McCown, Steven Harvey (Rigby, ID)

    2012-07-03T23:59:59.000Z

    A secure computing module (SCM) is configured for connection with a host device. The SCM includes a processor for performing secure processing operations, a host interface for coupling the processor to the host device, and a memory connected to the processor wherein the processor logically isolates at least some of the memory from access by the host device. The SCM also includes a proximate-field wireless communicator connected to the processor to communicate with another SCM associated with another host device. The SCM generates a secure digital signature for a financial transaction package and communicates the package and the signature to the other SCM using the proximate-field wireless communicator. Financial transactions are performed from person to person using the secure digital signature of each person's SCM and possibly message encryption. The digital signatures and transaction details are communicated to appropriate financial organizations to authenticate the transaction parties and complete the transaction.

  10. Distributed Connectivity of Wireless Networks

    E-Print Network [OSTI]

    Halldorsson, Magnus M

    2012-01-01T23:59:59.000Z

    We consider the problem of constructing a communication infrastructure from scratch, for a collection of identical wireless nodes. Combinatorially, this means a) finding a set of links that form a strongly connected spanning graph on a set of $n$ points in the plane, and b) scheduling it efficiently in the SINR model of interference. The nodes must converge on a solution in a distributed manner, having no means of communication beyond the sole wireless channel. We give distributed connectivity algorithms that run in time $O(poly(\\log \\Delta, \\log n))$, where $\\Delta$ is the ratio between the longest and shortest distances among nodes. Given that algorithm without prior knowledge of the instance are essentially limited to using uniform power, this is close to best possible. Our primary aim, however, is to find efficient structures, measured in the number of slots used in the final schedule of the links. Our main result is algorithms that match the efficiency of centralized solutions. Specifically, the networks...

  11. Assessing the opportunities and risks of different short-range wireless strategies for an automotive manufacturer

    E-Print Network [OSTI]

    Mingardi, Paul Andrew

    2005-01-01T23:59:59.000Z

    Recent innovations in wireless technology enable devices that were once stand-alone to be "connected". Today, connected products are changing the way people access information, communicate with others and live their lives. ...

  12. CERIAS Tech Report 2007-04 SECURITY IN WIRELESS SENSOR NETWORKS -A LAYER BASED CLASSIFICATION

    E-Print Network [OSTI]

    Liblit, Ben

    and communicational capabilities. Secondly, there is an additional risk of physical attacks such as node captureCERIAS Tech Report 2007-04 SECURITY IN WIRELESS SENSOR NETWORKS - A LAYER BASED CLASSIFICATION

  13. Wireless Inter-Session Network Coding - An Approach Using Virtual Multicasts

    E-Print Network [OSTI]

    Heindlmaier, Michael

    This paper addresses the problem of inter-session network coding to maximize throughput for multiple communication sessions in wireless networks. We introduce virtual multicast connections which can extract packets from ...

  14. Ad-hoc wireless network coverage with networked robots that cannot localize

    E-Print Network [OSTI]

    Correll, Nikolaus

    We study a fully distributed, reactive algorithm for deployment and maintenance of a mobile communication backbone that provides an area around a network gateway with wireless network access for higher-level agents. Possible ...

  15. Self-Triggered Control for Industrial Wireless Sensor and Actuator Networks

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    . Following this trend, several vendors are introducing devices that communicate over low-power wireless are deployed to adjust heating, ventilation and air conditioning (HVAC) and illumination. And in particular

  16. Advanced Dynamic Encryption – A Security Enhancement Protocol for IEEE 802.11 and Hybrid Wireless Network

    E-Print Network [OSTI]

    Yu, Peter Huan Pe

    2012-02-14T23:59:59.000Z

    Data integrity and privacy are the two most important security requirements in wireless communication. Most mechanisms rely on pre-share key data encryption to prevent unauthorized users from accessing confidential information. However, a fixed...

  17. Chapters 6 & 8 Wireless Networks

    E-Print Network [OSTI]

    Lu, Enyue "Annie"

    Chapters 6 & 8 Wireless Networks and Security Computer Networking:ATop Down Approach 6th edition.W. Ross, All Rights Reserved Wireless, Mobile Networks 6-1 #12;Wireless, Mobile Networks 6-2 Ch. 6: Wireless and Mobile Networks Background: # wireless (mobile) phone subscribers now exceeds # wired phone

  18. 1 Edgar Nett Mobile Computer Communication SS'10 General Overview

    E-Print Network [OSTI]

    1 Edgar Nett Mobile Computer Communication SS'10 General Overview Wireless Transmission Medium Layer Mobile Transport Layer WLAN Security #12;2 Edgar Nett Mobile Computer Communication SS'10 Medium Access Control (MAC Layer) #12;3 Edgar Nett Mobile Computer Communication SS'10 Can we apply media access

  19. Gas Main Sensor and Communications Network System

    SciTech Connect (OSTI)

    Hagen Schempf

    2006-05-31T23:59:59.000Z

    Automatika, Inc. was contracted by the Department of Energy (DOE) and with co-funding from the Northeast Gas Association (NGA), to develop an in-pipe natural gas prototype measurement and wireless communications system for assessing and monitoring distribution networks. This projected was completed in April 2006, and culminated in the installation of more than 2 dozen GasNet nodes in both low- and high-pressure cast-iron and steel mains owned by multiple utilities in the northeastern US. Utilities are currently logging data (off-line) and monitoring data in real time from single and multiple networked sensors over cellular networks and collecting data using wireless bluetooth PDA systems. The system was designed to be modular, using in-pipe sensor-wands capable of measuring, flow, pressure, temperature, water-content and vibration. Internal antennae allowed for the use of the pipe-internals as a waveguide for setting up a sensor network to collect data from multiple nodes simultaneously. Sensor nodes were designed to be installed with low- and no-blow techniques and tools. Using a multi-drop bus technique with a custom protocol, all electronics were designed to be buriable and allow for on-board data-collection (SD-card), wireless relaying and cellular network forwarding. Installation options afforded by the design included direct-burial and external polemounted variants. Power was provided by one or more batteries, direct AC-power (Class I Div.2) and solar-array. The utilities are currently in a data-collection phase and intend to use the collected (and processed) data to make capital improvement decisions, compare it to Stoner model predictions and evaluate the use of such a system for future expansion, technology-improvement and commercialization starting later in 2006.

  20. Effective Protocols for Mobile Communications and Networking

    SciTech Connect (OSTI)

    Espinoza, J.; Sholander, P.; Van Leeuwen, B,

    1998-12-01T23:59:59.000Z

    This report examines methods of mobile communications with an emphasis on mobile computing and wireless communications. Many of the advances in communications involve the use of Internet Protocol (IP), Asynchronous Transfer Mode (ATM), and ad hoc network protocols. However, many of the advances in these protocols have been focused on wired communications. Recently much focus has been directed at advancing communication technology in the area of mobile wireless networks. This report discusses various protocols used in mobile communications and proposes a number of extensions to existing protocols. A detailed discussion is also included on desirable protocol characteristics and evaluation criteria. In addition, the report includes a discussion on several network simulation tools that maybe used to evaluate network protocols.

  1. Physical layer model design for wireless networks 

    E-Print Network [OSTI]

    Yu, Yi

    2009-06-02T23:59:59.000Z

    the relationship between wireless protocol design and physical layer models, it is necessary to first comprehend the network architecture, which groups the communication functions into related and manageable layers. The journal model is IEEE Transactions... data to the network format and vice versa. It is intended to provide independence from different represen- tations of application layer data. The session layer deals with sessions and connections between applications. It manages conversations between...

  2. Other Board Communications Letter from B. John Garrick to Robert R. Loux, Executive Director, Agency for Nuclear Projects,

    E-Print Network [OSTI]

    , Executive Director, Agency for Nuclear Projects, State of Nevada; February 18, 2005. Subject: Response to November 25, 2003, letter on potential criticality for waste packages. · Statement of Chairman B. John.S. Nuclear Waste Technical Review Board Before the Subcommittee on the Federal Workforce and Agency

  3. Survivability Considerations in Wireless Networks

    E-Print Network [OSTI]

    Ning, Jianxia

    2012-01-01T23:59:59.000Z

    Forensics Analysis of Packet Losses in Wireless Networks 2.1Neighbor Discovery in 60 GHz Indoor Wireless Networks 4.1in Wireless Networks . . . . . . . . . . . . . 4.2.4

  4. Software-defined Radio Based Wireless Tomography: Experimental Demonstration and Verification

    SciTech Connect (OSTI)

    Bonior, Jason D [ORNL; Hu, Zhen [Tennessee Technological University; Guo, Terry N. [Tennessee Technological University; Qiu, Robert C. [Tennessee Technological University; Browning, James P. [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Wicks, Michael C. [University of Dayton Research Institute

    2015-01-01T23:59:59.000Z

    This letter presents an experimental demonstration of software-defined-radio-based wireless tomography using computer-hosted radio devices called Universal Software Radio Peripheral (USRP). This experimental brief follows our vision and previous theoretical study of wireless tomography that combines wireless communication and RF tomography to provide a novel approach to remote sensing. Automatic data acquisition is performed inside an RF anechoic chamber. Semidefinite relaxation is used for phase retrieval, and the Born iterative method is utilized for imaging the target. Experimental results are presented, validating our vision of wireless tomography.

  5. The Wireless Networking and Communications Group

    E-Print Network [OSTI]

    Heath Jr., - Robert W.

    Operator 70-80% of traffic offload CAPEX/OPEX saving $$$ Customer loyalty & reduce churn Multi-play bundled

  6. Circuit breaker monitoring application using wireless communication

    E-Print Network [OSTI]

    Ved, Nitin

    2007-04-25T23:59:59.000Z

    synchronizes recorded data to a global time standard enabling system-wide applications to use the recorded data. ? Ease of installation: The circuit breaker monitoring system can be installed at a substation within minutes by one or two personnel. The system... is powered by a 130V DC source, usually a battery in the substation control house, called the supply volt- age. All elements of the circuit are connected between the positive and the negative terminals of the supply voltage.Another voltage source called...

  7. Wireless Relay Communications with Unmanned Aerial Vehicles

    E-Print Network [OSTI]

    Swindlehurst, A. Lee

    Transmission Rate (ENTR) for the links between the ground nodes and the relay, and derive a closed platforms to form equivalent "cellular towers" in the sky for implementing rapidly deployable, broadband. The feasibility of using Orthogonal Frequency Division Multiplexing (OFDM) transmission techniques for UAV

  8. Digital signal generation for wireless communication systems

    E-Print Network [OSTI]

    Rode, Jeremy

    2010-01-01T23:59:59.000Z

    Ko, “A CMOS 868/915 MHz Direct Conversion ZigBee Single-Chipof a direct digital-to-duty-cycle conversion circuit is the

  9. Communication Algorithms for Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Viqar, Saira

    2012-10-19T23:59:59.000Z

    .4 Jittering trajectories : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 37 3.5 Uniform neighbor discovery block diagram. Each BNDP instance has a message processing (MP) automaton associated with it. : : : : : : : : : : 38 3.6 Hexagonal...

  10. Wireless communication devices and movement monitoring methods...

    Office of Scientific and Technical Information (OSTI)

    circuitry is configured to operate in a first operational state having a different power consumption rate compared with a second operational state. U.S. Department of Energy U.S....

  11. Modelling the Impact of User Mobility on the Throughput in Networks of Wireless 802.11 LANs

    E-Print Network [OSTI]

    van der Mei, Rob

    Modelling the Impact of User Mobility on the Throughput in Networks of Wireless 802.11 LANs Sandjai The Netherlands Email: sbhulai@few.vu.nl Rob van der Mei a,b b CWI Advanced Communication Networks P.O. Box 94079@feweb.vu.nl Abstract-- The wireless LAN technology 802.11, also called Wi-Fi, offers high speed wireless Internet

  12. Wireless Sensor Networks for Home Health Care

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    Wireless Sensor Networks for Home Health Care Chris R.Cooperation between wireless sensor networks and existingapplications of wireless sensor networks. In this paper we

  13. Special Issue on “Wireless Sensor Networks”

    E-Print Network [OSTI]

    Yao, Kung; Zhang, Qian; Zhao, Qing

    2009-01-01T23:59:59.000Z

    Special Issue on “Wireless Sensor Networks” Kung Yao & Qianand tracking, etc. Wireless sensor networks utilize theaspects of wireless sensor networks. The first paper, “

  14. Data Transport Control in Wireless Sensor Networks

    E-Print Network [OSTI]

    Zhang, Hongwei; Naik, Vinayak S

    2008-01-01T23:59:59.000Z

    Congestion in Wireless Sensor Networks. ACM SenSys SandeepJohn Anderson (2002). Wireless Sensor Networks for HabitatWorkshop on Wireless Sensor Networks and Applications Miklos

  15. Topics in network communications

    E-Print Network [OSTI]

    Cannons, Jillian Leigh

    2008-01-01T23:59:59.000Z

    Int. Workshop on Evaluation of Wireless Ad Hoc, Sensor andon Performance Evaluation of Wireless Ad Hoc, Sensor and

  16. IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 50, NO. 9, SEPTEMBER 2002 1535 Error Statistics for Average Power Measurements in

    E-Print Network [OSTI]

    Wei, Shuangqing

    for Average Power Measurements in Wireless Communication Systems Shuangqing Wei, Student Member, IEEE, and Dennis L. Goeckel, Member, IEEE Abstract--The measurement of the average received power is essential for power control and dynamic channel allocation in wireless communication systems. However, due

  17. Wireless Integrated Circuit for 100-Channel Neural Stimulation

    E-Print Network [OSTI]

    Harrison, Reid R.

    and retracting charge from the nervous system. Wireless communication and power are achieved over a 2.765-MHz in power supply regulation and a coil for power and command reception. The chip was fabricated in power supply regulation and a coil for power and command reception. System-level chip designs as well

  18. Wireless Multichannel Integrated Potentiostat for Distributed Neurotransmitter Sensing

    E-Print Network [OSTI]

    Cauwenberghs, Gert

    scales from microamperes to picoamperes. The wireless module is able to harvest power through inductively and duplex data communication, usually supplied by wires connected through the skin. This wiring or tethering in the human body. A very promising alternative for implanted devices is RF power harvesting through inductive

  19. On Rate Control of Wireless Multicasting Jie Luo, Anthony Ephremides

    E-Print Network [OSTI]

    On Rate Control of Wireless Multicasting Jie Luo, Anthony Ephremides ECE Dept. Univ. of Maryland the effective multicast communication rate is termed rate control. By modeling the channel from the transmitter only by the channel distributions. Key words multicast, rate control 1 Introduction In the layered

  20. 12/19/2001 1 New Paradigm of Wireless

    E-Print Network [OSTI]

    Loyka, Sergey

    12/19/2001 1 New Paradigm of Wireless Communications ­ MIMO1 Architecture 1MIMO - Multiple.loyka@ieee.org by Dr. Sergey Loyka #12;12/19/2001 2 Why MIMO? · High demand for spectrum need for spectral efficiency - not! #12;12/19/2001 3 What is MIMO/BLAST? · MIMO is an extraordinarily bandwidth-efficient approach

  1. Distributed and Efficient Classifiers for Wireless Audio-Sensor Networks

    E-Print Network [OSTI]

    Nascimento, Mario A.

    efficient in terms of communication overhead. Index Terms--Sensors, Acoustic Classification, Features Selec evaluation results in terms of classification ac- curacy and energy expenditure trade-offs. Finally, SectionDistributed and Efficient Classifiers for Wireless Audio-Sensor Networks Baljeet Malhotra

  2. Resource Management for Fading Wireless Channels with Energy Harvesting Nodes

    E-Print Network [OSTI]

    Ulukus, Sennur

    Resource Management for Fading Wireless Channels with Energy Harvesting Nodes Omur Ozel1 , Kaya of these systems is the fact that the nodes can harvest energy throughout the duration in which communication takes place. As such, transmission policies of the nodes need to adapt to these harvested energy arrivals

  3. WIRELESS SENSING FOR STRUCTURAL HEALTH MONITORING OF CIVIL STRUCTURES

    E-Print Network [OSTI]

    Lynch, Jerome P.

    communication of response measurements but also for power efficiency. The performance of the sensing unit in structural monitoring systems. The prototype wireless sensing unit is intended to 1) collect measurement data from the sensors installed on a structure, 2) store, manage and locally process the measurement data

  4. Variable Latency Turbo Codes for Wireless Multimedia Applications

    E-Print Network [OSTI]

    Valenti, Matthew C.

    Variable Latency Turbo Codes for Wireless Multimedia Applications Matthew C. Valenti and Brian D acceptable latency and Bit Error Rate BER or Frame Error Rate FER. In turbo coded systems a tradeo between an adaptive turbo coding strategy for wire- less multimedia communications that incor- porates a set

  5. Optimal Power Allocation in Channel-Coded Wireless Sudarshan Vasudevan

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    energy. However, for many communication links, such as those employing turbo codes or sequentially transmitted RF power for receiver decoder power can result in significant improvements in overall energy transmission. The gains are particularly pronounced in wireless networks with asymmetric power costs. 1

  6. Optimal Power Allocation in ChannelCoded Wireless Sudarshan Vasudevan

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    , while considering both transmitter circuit and signal energy. However, for many communication links in significant improvements in overall energy consumption or network lifetime versus schemes that always employ networks with asymmetric power costs. 1 Introduction Wireless ad hoc networks and, in particular, sensor

  7. Optimal Power Allocation in ChannelCoded Wireless Sudarshan Vasudevan

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    energy. However, for many communication links, such as those employing turbo codes or sequentially transmitted RF power for receiver decoder power can result in significant improvements in overall energy transmission. The gains are particularly pronounced in wireless networks with asymmetric power costs. 1

  8. Optimal Power Allocation in Channel-Coded Wireless Sudarshan Vasudevan

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    , while considering both transmitter circuit and signal energy. However, for many communication links in significant improvements in overall energy consumption or network lifetime versus schemes that always employ networks with asymmetric power costs. 1 Introduction Wireless ad hoc networks and, in particular, sensor

  9. Securely Computing an Approximate Median in Wireless Sensor Networks

    E-Print Network [OSTI]

    Setia, Sanjeev

    Securely Computing an Approximate Median in Wireless Sensor Networks Sankardas Roy 1 sroy1@gmu and the unattended nature of sensor nodes, sensor network protocols need to be designed with security in mind and efficient. Categories and Subject Descriptors C.2.0 [Computer-Communication Networks]: General- Security

  10. Parameter assignment for improved connectivity and security in randomly deployed wireless sensor networks via hybrid omni/uni-directional antennas

    E-Print Network [OSTI]

    Shankar, Sonu

    2009-05-15T23:59:59.000Z

    ,omni-directional antennas have been used for communication in wireless sensor net-works. In this thesis, a hybrid communication model is presented where-in, nodes ina network are capable of both omni-directional and uni-directional communication.The eect of such a model...

  11. Post-accident two-way communications and electronic tracking

    SciTech Connect (OSTI)

    NONE

    2009-01-15T23:59:59.000Z

    MSHA addresses acceptable alternatives to wireless communications. In December 2008 they issued a draft program policy letter (PPL) that provided mine operators guidance in implementing two-way communication alternatives which include infrastructure underground to provide un-tethered communications with miners. The article was adapted from the December 2008 MSHA PPL on Communications & Tracking. The entire PPL may be accessed at http://www.msha.gov. 3 tabs.

  12. c 2005 by Yuan Xue. All rights reserved. PRICE-BASED OPTIMAL RESOURCE ALLOCATION IN MULTI-HOP WIRELESS

    E-Print Network [OSTI]

    Nahrstedt, Klara

    c 2005 by Yuan Xue. All rights reserved. #12;PRICE-BASED OPTIMAL RESOURCE ALLOCATION IN MULTI have enabled rapid develop- ment of a variety of wireless network technologies. The undeniable- width and battery energy. (3) Autonomous communication entities. The wireless nodes usually belong

  13. Wireless Internet for The Mobile Enterprise Consortium http://winmec.ucla.edu/ TECHNICAL REPORT/WHITE PAPER

    E-Print Network [OSTI]

    California at Los Angeles, University of

    , COMMUNICATIONS AND APPLICATIONS (TOMCCAP) CONFIDENTIAL, © Su, Prabhu, Chu and Gadh, UCLA-WINMEC-2005-201-SVG Gadh UCLA ­ Wireless Internet for Mobile Enterprise Consortium (WINMEC) This research investigates, Prabhu, Chu and Gadh, UCLA-WIN

  14. Communication Needs and Integration Options

    E-Print Network [OSTI]

    Communication Needs and Integration Options for AMI in the Smart Grid Future Grid Initiative White System #12;Communication Needs and Integration Options for AMI in the Smart Grid Prepared for the Project #12;ii Executive Summary This white paper analyzes the current state of communications

  15. Communication Needs and Integration Options

    E-Print Network [OSTI]

    Communication Needs and Integration Options for AMI in the Smart Grid Future Grid Initiative White System #12;Communication Needs and Integration Options for AMI in the Smart Grid Prepared for the Project the current state of communications for the advanced metering infrastructure (AMI) and recommends

  16. Evaluating Control Strategies for Wireless-Networked Robots Using an Integrated Robot and Network Simulation

    E-Print Network [OSTI]

    Heidemann, John

    Evaluating Control Strategies for Wireless-Networked Robots Using an Integrated Robot and Network communication is an enabling factor in mul- tiple mobile robot systems. There is signi#12;cant interac- tion between robot controllers and communications sub- systems. We present a method for evaluating combined

  17. 2010 Telecommunications Policy Research Conference The FCC Plan for a Public Safety Broadband Wireless Network

    E-Print Network [OSTI]

    Peha, Jon M.

    ;2010 Telecommunications Policy Research Conference 2 In March 2010, the U.S. Federal Communications Commission (FCC Communications Commission (FCC) released the National Broadband Plan (NBP) for the United States, which made Wireless Network Jennifer A. Manner, Stagg Newman, Jon M. Peha Abstract In March 2010, the U.S. Federal

  18. Wireless sensor networks for measuring traffic

    E-Print Network [OSTI]

    Varaiya, Pravin

    Wireless sensor networks for measuring traffic University of California, Berkeley Sing Yiu Cheung, Sinem Coleri, and Pravin Varaiya 2 Outline · Traffic measurement · Wireless Sensor Networks · Vehicle wireless sensor networks compete? 7 Outline · Traffic measurement · Wireless Sensor Networks · Vehicle

  19. Wireless boundary monitor system and method

    DOE Patents [OSTI]

    Haynes, H.D.; Ayers, C.W.

    1997-12-09T23:59:59.000Z

    A wireless boundary monitor system used to monitor the integrity of a boundary surrounding an area uses at least two housings having at least one transmitting means for emitting ultrasonic pressure waves to a medium. Each of the housings has a plurality of receiving means for sensing the pressure waves in the medium. The transmitting means and the receiving means of each housing are aimable and communicably linked. At least one of the housings is equipped with a local alarm means for emitting a first alarm indication whereby, when the pressure waves propagating from a transmitting means to a receiving means are sufficiently blocked by an object a local alarm means or a remote alarm means or a combination thereof emit respective alarm indications. The system may be reset either manually or automatically. This wireless boundary monitor system has useful applications in both indoor and outdoor environments. 4 figs.

  20. Solar-powered WirelessMesh Networksfor Environmental Monitoring Torsten Braun, Thomas Staub, Benjamin Nyffenegger

    E-Print Network [OSTI]

    Braun, Torsten

    Solar-powered WirelessMesh Networksfor Environmental Monitoring Torsten Braun, Thomas Staub the development and experiencesof a solar-power driven wirelessmesh network for connectingsensorsin rural is available. II. SOLAR-POWER DRIVEN WIRELESS MESH NETWORK DEPLYOMENT AND OPERATION In a technology project

  1. An Integrated Architecture for Demand Response Communications and Control

    E-Print Network [OSTI]

    Gross, George

    An Integrated Architecture for Demand Response Communications and Control Michael LeMay, Rajesh for the MGA and ZigBee wireless communications. Index Terms Demand Response, Advanced Meter Infrastructure. In principle this can be done with demand response techniques in which electricity users take measures

  2. Towards Characterizing and Classifying Communication-based Automotive Applications

    E-Print Network [OSTI]

    Perrig, Adrian

    Towards Characterizing and Classifying Communication-based Automotive Applications from a Wireless opportunity to develop various types of communication-based automotive applications. To date, many applications have been identified by the automotive community. Given the large number and diverse nature

  3. Adaptive Scheduling in Ad Hoc and Cellular Wireless Networks

    E-Print Network [OSTI]

    Tan, Choo Chin

    2013-01-01T23:59:59.000Z

    organization wireless networks and wireless mobile ad-hocfor heterogeneous wireless network”, in Proc. of IEEER. Khalaf, “Ad hoc wireless networks with mobile backbones,”

  4. Network coded wireless architecture

    E-Print Network [OSTI]

    Katti, Sachin Rajsekhar

    2008-01-01T23:59:59.000Z

    Wireless mesh networks promise cheap Internet access, easy deployment, and extended range. In their current form, however, these networks suffer from both limited throughput and low reliability; hence they cannot meet the ...

  5. Converter Topologies for Wired and Wireless Battery Chargers

    Broader source: Energy.gov (indexed) [DOE]

    RF, Communications & Intelligent Systems group * ORNL vehicle systems group * Energy Dynamics Laboratory * Total project funding - DOE share - 100% * Funding for FY11 - 537K 3...

  6. Constructing Path Efficient and Energy Aware Virtual Multicast Backbones in Static Ad Hoc Wireless Networks

    E-Print Network [OSTI]

    Acharya, Tamaghna; Roy, Rajarshi; 10.5121/ijwmn.2010.2210

    2010-01-01T23:59:59.000Z

    For stationary wireless ad hoc networks, one of the key challenging issues in routing and multicasting is to conserve as much energy as possible without compromising path efficiency measured as end-to-end delay. In this paper, we address the problem of path efficient and energy aware multicasting in static wireless ad hoc networks. We propose a novel distributed scalable algorithm for finding a virtual multicast backbone (VMB). Based on this VMB, we have further developed a multicasting scheme that jointly improves path efficiency and energy conservation. By exploiting inherent broadcast advantage of wireless communication and employing a more realistic energy consumption model for wireless communication which not only depends on radio propagation losses but also on energy losses in transceiver circuitry, our simulation results show that the proposed VMB-based multicasting scheme outperforms existing prominent tree based energy conserving, path efficient multicasting schemes.

  7. Self organization of wireless sensor networks using ultra-wideband radios

    DOE Patents [OSTI]

    Dowla, Farid U. (Castro Valley, CA); Nekoogar, Franak (San Ramon, CA); Spiridon, Alex (Palo Alto, CA)

    2009-06-16T23:59:59.000Z

    A novel UWB communications method and system that provides self-organization for wireless sensor networks is introduced. The self-organization is in terms of scalability, power conservation, channel estimation, and node synchronization in wireless sensor networks. The UWB receiver in the present invention adds two new tasks to conventional TR receivers. The two additional units are SNR enhancing unit and timing acquisition and tracking unit.

  8. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    . Supervisor: Majid Jam, Switch Nordic Green AB #12;Abstract Switch Nordic Green AB (Nordic Green Energy of the company. Keywords: WLAN, LAN, network planning, Nordic Green Energy, VoIP, department relocation i #12;Sammanfattning Switch Nordic Green AB (Nordic Green Energy) är ett elbolag med cirka 40 anställda. Kundtjänsten

  9. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    repetition system. Keywords: spaced repetition, YouTube API, user experience, responsive design, bootstrap experience, responsive design, bootstrap #12;#12;Table Abst Sam Tab List List List 1 I 1. 1. 1. 1. 1. 2 B 2

  10. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    ). Keyword: SCADA, PLC, SCADA security, SCADA networks, PLC security, Trusted computing, TCM, TPM, Embedded). Nyckelord:SCADA, PLC, SCADA säkerhet, SCADA-nätverk, PLC säkerhet, pĺlitlig datoranvändning, TCM, TPM

  11. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    . The first one is a static algorithm based on heuristics. The second algorithm, called k-Means, is based on data clustering. The heuristics based algorithm provides a result in less than 2 milliseconds, while k-Means takes roughly 4 milliseconds to converge. A comparison of the performance and flexibility of these two

  12. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    S E N a n d A L F R E D A N D E R S S O N Visualization of data produced by sensors in a home Visualization of data produced by sensors in a home environment Ivan Pedersen and Alfred Andersson 14 June 2012 inkluderar, men är inte begränsade till ljusbrytare, termostater, termometrar, persienner eller

  13. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    the demands for resources, while users demand even faster response times, despite the ever-growing datasets underlying many of these new applications. Several concepts and best practices have been introduced to build the proposed design, this thesis presents several guidelines, best practices and recommendations for optimizing

  14. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    -aggregatorerna uppskatta kvaliten av varje potentiell internationell rutt till det specificerade slutm°alet. Kriterierna

  15. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    Management (PLM) is a holistic approach for managing product information throughout its life cycle a complex network of specialized companies collaborate. This global collaborative PLM implies that companies from different parts of the world work together and must share information; hence the underlying PLM

  16. Degree project in Communication Systems

    E-Print Network [OSTI]

    Maguire Jr., Gerald Q.

    radiospektrum och skapar en konstgjord brist eftersom de flesta av de tilldelade spektrumet inte används hela

  17. Project Communications Officer Hayley Calderwood

    E-Print Network [OSTI]

    increasing demand for rich content delivery from personal mobile devices · to cope with an ever increasing

  18. Video transmission over wireless networks 

    E-Print Network [OSTI]

    Zhao, Shengjie

    2005-08-29T23:59:59.000Z

    Compressed video bitstream transmissions over wireless networks are addressed in this work. We first consider error control and power allocation for transmitting wireless video over CDMA networks in conjunction with multiuser detection. We map a...

  19. Energy efficiency in wireless networks

    E-Print Network [OSTI]

    Jung, Eun-Sun

    2005-11-01T23:59:59.000Z

    Energy is a critical resource in the design of wireless networks since wireless devices are usually powered by batteries. Battery capacity is finite and the progress of battery technology is very slow, with capacity expected to make little...

  20. Video transmission over wireless networks

    E-Print Network [OSTI]

    Zhao, Shengjie

    2005-08-29T23:59:59.000Z

    Compressed video bitstream transmissions over wireless networks are addressed in this work. We first consider error control and power allocation for transmitting wireless video over CDMA networks in conjunction with multiuser detection. We map a...

  1. Energy efficiency in wireless networks 

    E-Print Network [OSTI]

    Jung, Eun-Sun

    2005-11-01T23:59:59.000Z

    Energy is a critical resource in the design of wireless networks since wireless devices are usually powered by batteries. Battery capacity is finite and the progress of battery technology is very slow, with capacity expected ...

  2. UltraUltra--Wideband (UWB)Wideband (UWB) Wireless CommunicationsWireless Communications

    E-Print Network [OSTI]

    Qiu, Robert Caiming

    Market SegmentationSegmentation Nokia 3330 Add-On Devices Business / Smart Phones Basic Phones Data Entertainment Devices Home Network DevicesHome Network Devices PC Enterprise Business MarketPC Enterprise System Modeling ConclusionConclusion #12;Robert Qiu Tennessee Tech 3 Mobile Devices MarketMobile Devices

  3. Public participation in UMTRA Project program management

    SciTech Connect (OSTI)

    Majors, M.J.; Ulland, L.M. [Weston (Roy F.), Inc., Albuquerque, NM (United States)

    1993-12-31T23:59:59.000Z

    Innovative techniques for overcoming barriers to public participation on the US Department of Energy`s Uranium Mill Tailings Remedial Action (UMTRA) Project have led to improved communications with stakeholders at project sites and improved communications within the project. On the UMTRA Project, it`s been shown that an effective public participation program is an essential element to successful project implementation.

  4. Threat Insight Quarterly Wireless Technology

    E-Print Network [OSTI]

    X-Force ® Threat Insight Quarterly Wireless Technology April 2006 #12;X - F O R C E T H R E A T I N the Wireless Threat ..................................................3 Wireless Threats-Force Catastrophic Risk Index...................................... 13 Future X-Force Threat Insight Quarterly Topics

  5. Planar array design and analysis on direction of arrival estimation for mobile communication systems 

    E-Print Network [OSTI]

    Sanudin, Rahmat

    2014-06-30T23:59:59.000Z

    The demand of wireless communication has increased significantly in the past few decades due to huge demand to deliver multimedia content instantly. The expansion of mobile content paired with affordable mobile devices ...

  6. An energy efficient sub-threshold baseband processor architecture for pulsed ultra-wideband communications

    E-Print Network [OSTI]

    Sze, Vivienne

    2006-01-01T23:59:59.000Z

    Ultra-wideband (UWB) communications is currently being explored as a medium for high-data-rate last-meter wireless links. Accordingly, there has been much interest in integrating UWB radios onto battery-operated devices, ...

  7. LIANG, WEI. Design and Analysis of Authentication Mechanisms in Single-and Multi-Hop Wireless Networks. (Under the direction of Professor Wenye Wang).

    E-Print Network [OSTI]

    Wang, Wenye

    -Hop Wireless Networks. (Under the direction of Professor Wenye Wang). The increasing demand for ubiquitous Internet services imposes more security threats to communications due to open mediums in wireless networks on the transmission. As one of most widely used security mechanisms, authentication is used to identify mobile nodes

  8. Reconfigurable Wireless Interface for Networking Sensors (ReWINS)

    E-Print Network [OSTI]

    California at Los Angeles, University of

    , Rajit Gadh {harish, bsp, gadh}@wireless.ucla.edu Wireless Internet for the Mobile Enterprise Consortium

  9. Fair power and transmission rate control in wireless Eitan Altman

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fair power and transmission rate control in wireless networks Eitan Altman Maestro project, INRIA of calls in the system; it will be studied here in conjunction with power control which is yet another tool cases. We show that the problem is a joint optimization system of the transmission rate and the power

  10. Optimal Deployment of Large Wireless Sensor Networks

    E-Print Network [OSTI]

    Toumpis, Stavros

    1 Optimal Deployment of Large Wireless Sensor Networks S. Toumpis, Member, IEEE, and Leandros, Sensor networks. I. INTRODUCTION A. Wireless Sensor Networks Wireless sensor networks are comprised of sensors that are equipped with wireless transceivers and so are able to form a wireless network [3

  11. Position estimation of transceivers in communication networks

    DOE Patents [OSTI]

    Kent, Claudia A. (Pleasanton, CA); Dowla, Farid (Castro Valley, CA)

    2008-06-03T23:59:59.000Z

    This invention provides a system and method using wireless communication interfaces coupled with statistical processing of time-of-flight data to locate by position estimation unknown wireless receivers. Such an invention can be applied in sensor network applications, such as environmental monitoring of water in the soil or chemicals in the air where the position of the network nodes is deemed critical. Moreover, the present invention can be arranged to operate in areas where a Global Positioning System (GPS) is not available, such as inside buildings, caves, and tunnels.

  12. DIGITAL ARCHITECTURE PROJECT PLAN

    SciTech Connect (OSTI)

    Thomas, Ken

    2014-09-01T23:59:59.000Z

    The objective of this project is to develop an industry consensus document on how to scope and implement the underlying information technology infrastructure that is needed to support a vast array of real-time digital technologies to improve NPP work efficiency, to reduce human error, to increase production reliability and to enhance nuclear safety. A consensus approach is needed because: • There is currently a wide disparity in nuclear utility perspectives and positions on what is prudent and regulatory-compliant for introducing certain digital technologies into the plant environment. For example, there is a variety of implementation policies throughout the industry concerning electromagnetic compatibility (EMC), cyber security, wireless communication coverage, mobile devices for workers, mobile technology in the control room, and so forth. • There is a need to effectively share among the nuclear operating companies the early experience with these technologies and other forms of lessons-learned. There is also the opportunity to take advantage of international experience with these technologies. • There is a need to provide the industry with a sense of what other companies are implementing, so that each respective company can factor this into their own development plans and position themselves to take advantage of new work methods as they are validated by the initial implementing companies. In the nuclear power industry, once a better work practice has been proven, there is a general expectation that the rest of the industry will adopt it. However, the long-lead time of information technology infrastructure could prove to be a delaying factor. A secondary objective of this effort is to provide a general understanding of the incremental investment that would be required to support the targeted digital technologies, in terms of an incremental investment over current infrastructure. This will be required for business cases to support the adoption of these new technologies.

  13. Multi-Channel and Multi-Rate Adaptation for High-Throughput Wireless Networks

    E-Print Network [OSTI]

    Nguyen, Duy Duc

    2012-01-01T23:59:59.000Z

    layer. Unlike wired networks, wireless networks have to deal2 Background Wireless Networks Wireless technology is allWLAN), wireless mesh networks, wireless metropolitan area

  14. Context-aware computing for wireless networks

    E-Print Network [OSTI]

    Ergüt, Salih

    2010-01-01T23:59:59.000Z

    Packet Delay in Wireless Networks 2 Client Side Active QueueCellular and Sensor Networks Wireless Positioning Overviewin Mobile, Ad Hoc and Wireless Networks, pages 1–10, 2006. [

  15. Software Defined Wireless Networks: Unbridling SDNs

    E-Print Network [OSTI]

    Perkins, Dmitri

    Software Defined Wireless Networks: Unbridling SDNs Salvatore Costanzo, Laura Galluccio, Giacomo at analyzing how SDN can be beneficial in wireless infrastructureless networking environments with special emphasis on wireless personal area networks (WPAN). Furthermore, a possible approach (called SDWN

  16. Cooperative Diversity Routing in Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Cooperative Diversity Routing in Wireless Networks Mostafa Dehghan and Majid Ghaderi Department routing, cooperative commu- nication, cooperative diversity, wireless networks. I. INTRODUCTION Energy efficiency is a challenging problem in wireless networks, especially in ad hoc and sensor networks, where

  17. Characterizing User Mobility in Wireless Networks

    E-Print Network [OSTI]

    Nunes, Bruno Astuto Arouche

    2012-01-01T23:59:59.000Z

    Symmetry of User Mobility in Wireless Networks 3.1 MobilityAnalysis of a local-area wireless network. In ACM MOBI- COMand evaluation of wireless networks and their protocols.

  18. Collaborative Firewalling in Wireless Networks Mahmoud Taghizadeh

    E-Print Network [OSTI]

    Liu, Alex X.

    Collaborative Firewalling in Wireless Networks Mahmoud Taghizadeh Department of ECE Michigan State elements to enforce access policies in computer networks. Open network architecture, shared wireless medium for wireless networks in which nodes collaboratively perform packet filtering to address resource squandering

  19. FUNDAMENTAL PERFORMANCE LIMITS OF WIRELESS SENSOR NETWORKS

    E-Print Network [OSTI]

    Li, Baochun

    FUNDAMENTAL PERFORMANCE LIMITS OF WIRELESS SENSOR NETWORKS ZHIHUA HU, BAOCHUN LI Abstract. Understanding the fundamental performance limits of wireless sensor networks is critical towards. Key words. Wireless sensor networks, network capacity, network lifetime. 1. Introduction. When

  20. Wireless Sensor Network Infrastructure : Construction and Evaluation

    E-Print Network [OSTI]

    Boyer, Edmond

    Wireless Sensor Network Infrastructure : Construction and Evaluation Kamal Beydoun, Violeta Felea main features for efficient energy management in wireless sensor networks. This paper aims to present a distributed and low-cost topology construction algorithm for wireless sensor networks, addressing

  1. Mental content, holism and communication 

    E-Print Network [OSTI]

    Pollock, Joanna Katharine Mary

    2014-07-01T23:59:59.000Z

    In this project, I defend a holistic, internalist conceptual-role theory of mental content (‘Holism’, for short). The account of communicative success which must be adopted by the Holist is generally thought to be ...

  2. Insecurity of Wireless Networks

    SciTech Connect (OSTI)

    Sheldon, Frederick T [ORNL; Weber, John Mark [Dynetics, Inc.; Yoo, Seong-Moo [University of Alabama, Huntsville; Pan, W. David [University of Alabama, Huntsville

    2012-01-01T23:59:59.000Z

    Wireless is a powerful core technology enabling our global digital infrastructure. Wi-Fi networks are susceptible to attacks on Wired Equivalency Privacy, Wi-Fi Protected Access (WPA), and WPA2. These attack signatures can be profiled into a system that defends against such attacks on the basis of their inherent characteristics. Wi-Fi is the standard protocol for wireless networks used extensively in US critical infrastructures. Since the Wired Equivalency Privacy (WEP) security protocol was broken, the Wi-Fi Protected Access (WPA) protocol has been considered the secure alternative compatible with hardware developed for WEP. However, in November 2008, researchers developed an attack on WPA, allowing forgery of Address Resolution Protocol (ARP) packets. Subsequent enhancements have enabled ARP poisoning, cryptosystem denial of service, and man-in-the-middle attacks. Open source systems and methods (OSSM) have long been used to secure networks against such attacks. This article reviews OSSMs and the results of experimental attacks on WPA. These experiments re-created current attacks in a laboratory setting, recording both wired and wireless traffic. The article discusses methods of intrusion detection and prevention in the context of cyber physical protection of critical Internet infrastructure. The basis for this research is a specialized (and undoubtedly incomplete) taxonomy of Wi-Fi attacks and their adaptations to existing countermeasures and protocol revisions. Ultimately, this article aims to provide a clearer picture of how and why wireless protection protocols and encryption must achieve a more scientific basis for detecting and preventing such attacks.

  3. Caching in wireless networks

    E-Print Network [OSTI]

    Niesen, Urs

    We consider the problem of delivering content cached in a wireless network of n nodes randomly located on a square of area n. In the most general form, this can be analyzed by considering the 2[superscript n] timesn-dimensional ...

  4. A Testbed of Magnetic Induction-based Communication System for Underground Applications

    E-Print Network [OSTI]

    Tan, Xin; Akyildiz, Ian F

    2015-01-01T23:59:59.000Z

    Wireless underground sensor networks (WUSNs) can enable many important applications such as intelligent agriculture, pipeline fault diagnosis, mine disaster rescue, concealed border patrol, crude oil exploration, among others. The key challenge to realize WUSNs is the wireless communication in underground environments. Most existing wireless communication systems utilize the dipole antenna to transmit and receive propagating electromagnetic (EM) waves, which do not work well in underground environments due to the very high material absorption loss. The Magnetic Induction (MI) technique provides a promising alternative solution that could address the current problem in underground. Although the MI-based underground communication has been intensively investigated theoretically, to date, seldom effort has been made in developing a testbed for the MI-based underground communication that can validate the theoretical results. In this paper, a testbed of MI-based communication system is designed and implemented in a...

  5. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 30, NO. 6, JULY 2012 1061 Decentralized Economic Dispatch in Microgrids via

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    Economic Dispatch in Microgrids via Heterogeneous Wireless Networks Hao Liang, Student Member, IEEE, Bong at the minimum cost based on the economic dispatch. In this paper, we introduce a decentralized economic dispatch wireless communication devices are used to establish an ad hoc network as a basic information exchange

  6. Innovating science communication

    E-Print Network [OSTI]

    Goldfarb, Steven; The ATLAS collaboration; Shaw, Kate

    2015-01-01T23:59:59.000Z

    The ATLAS Education & Outreach project has, over the years, developed a strong reputation for supporting innovation. Animated event displays, musical CDs, 3d movies, 3-storey murals, photo books, data sonifications, multi-media art installations, pub slams, masterclasses, documentaries, pop-up books, LEGO® models, and virtual visits are among the many diverse methods being exploited to communicate to the world the goals and accomplishments of the ATLAS Experiment at CERN. This variety of creativity and innovation does not pop out of a vacuum. It requires underlying motivation by the collaboration to communicate with the public; freedom and encouragement to do so in a creative manner; and a support structure for developing, implementing and promoting these activities. The ATLAS Outreach project has built this support structure on a well-defined communication plan, high-quality content, and effective delivery platforms. Most importantly, implementation of the program has been based on the effective engagem...

  7. A 350 mu W CMOS MSK Transmitter and 400 mu W OOK Super-Regenerative Receiver for Medical Implant Communications

    E-Print Network [OSTI]

    Dawson, Joel L.

    Recent advances in the medical field are spurring the need for ultra-low power transceivers for wireless communication with medical implants. To deal with the growing demand for medical telemetry, the FCC commissioned the ...

  8. Data communications

    SciTech Connect (OSTI)

    Preckshot, G.G. [Lawrence Livermore National Lab., CA (United States)

    1993-08-01T23:59:59.000Z

    The purpose of this paper is to recommend regulatory guidance for reviewers examining computer communication systems used in nuclear power plants. The recommendations cover three areas important to these communications systems: system design, communication protocols, and communication media. The first area, system design, considers three aspects of system design--questions about architecture, specific risky design elements or omissions to look for in designs being reviewed, and recommendations for multiplexed data communication systems used in safety systems. The second area reviews pertinent aspects of communication protocol design and makes recommendations for newly designed protocols or the selection of existing protocols for safety system, information display, and non-safety control system use. The third area covers communication media selection, which differs significantly from traditional wire and cable. The recommendations for communication media extend or enhance the concerns of published IEEE standards about three subjects: data rate, imported hazards and maintainability.

  9. Map of wireless networks For more information on University wireless services visit

    E-Print Network [OSTI]

    Martin, Stephen John

    Map of wireless networks For more information on University wireless services visit: http://www.shef.ac.uk/cics/wireless. Corporate Information and Computing Services. Connecting To the Wireless Network. Mac OS X, Apple iPhone and iPod Touch #12;Connecting to the eduroam wireless network Mac OS X Prerequisites Mac OS X 10

  10. Handheld portable real-time tracking and communications device

    DOE Patents [OSTI]

    Wiseman, James M. (Albuquerque, NM); Riblett, Jr., Loren E. (Edgewood, NM); Green, Karl L. (Albuquerque, NM); Hunter, John A. (Albuquerque, NM); Cook, III, Robert N. (Rio Rancho, NM); Stevens, James R. (Arlington, VA)

    2012-05-22T23:59:59.000Z

    Portable handheld real-time tracking and communications devices include; a controller module, communications module including global positioning and mesh network radio module, data transfer and storage module, and a user interface module enclosed in a water-resistant enclosure. Real-time tracking and communications devices can be used by protective force, security and first responder personnel to provide situational awareness allowing for enhance coordination and effectiveness in rapid response situations. Such devices communicate to other authorized devices via mobile ad-hoc wireless networks, and do not require fixed infrastructure for their operation.

  11. Multi-hop routing for wireless mesh networks

    E-Print Network [OSTI]

    Bhorkar, Abhijeet

    2012-01-01T23:59:59.000Z

    in Wireless Mesh Networks . . . . . . . . . . . . . 1.2in Mobile, Ad Hoc, and Wireless Networks (WiOpt), [45] Amanin ICDCS Workshop on Wireless Networks and Mobile Computing,

  12. Maximizing the throughput of large ad hoc wireless networks

    E-Print Network [OSTI]

    Hua, Yingbo; Huang, Yi; J, Garcia-Luna-Aceves J

    2006-01-01T23:59:59.000Z

    The transport capacity of wireless networks over fadingimprovement of ad hoc wireless networks using directionalThe capacity of wireless networks,” IEEE Trans. Inform.

  13. Traffic Management and Net Neutrality in Wireless Networks

    E-Print Network [OSTI]

    Jordan, Scott

    2011-01-01T23:59:59.000Z

    and resource allocation in wireless multimedia networks.between wired and wireless networks, and hence on potentialManagement for Wireless Networks. Artech House Publishers,

  14. Power Scheduling for Multi-Hop Wireless Networks

    E-Print Network [OSTI]

    Yu, Yuan

    2009-01-01T23:59:59.000Z

    The capacity of wireless networks,” IEEE Trans. Inform.capacity of hybrid wireless networks,” in Infocom, 2003, pp.larization for MIMO wireless networks,” IEEE Transactions on

  15. Energy Efficient Distributed Data Fusion In Multihop Wireless Sensor Networks

    E-Print Network [OSTI]

    Huang, Yi

    2010-01-01T23:59:59.000Z

    processing for a wireless sensor networks. Each circle ’S’techniques in wireless sensor networks: A survey,” IEEEestimation for wireless sensor networks, part i: Gaussian

  16. Improving the performance of distributed simulations of wireless sensor networks

    E-Print Network [OSTI]

    Jin, Zhong-Yi

    2010-01-01T23:59:59.000Z

    Overview of Wireless Sensor Networks . . 2.1.2 Difficultiesin parallel a wireless sensor network with two duty cycledin parallel a wireless sensor network with three nodes that

  17. Scalable Coverage Maintenance for Dense Wireless Sensor Networks

    E-Print Network [OSTI]

    Lu, Jun; Wang, Jinsu; Suda, Tatsuya

    2007-01-01T23:59:59.000Z

    get coverage in wireless sensor networks,” in Proceedings ofscheme for large wireless sensor networks,” in Pro- ceedingsWorkshop on Wireless Sensor Networks and Applications (

  18. Cubic-based 3-D Localization for Wireless Sensor Networks

    E-Print Network [OSTI]

    Shwe, Hnin Yu; Chong, Peter HJ

    2013-01-01T23:59:59.000Z

    Scheme in Stereo Wireless Sensor Networks,” in Advances infor mobile wireless sensor networks," Ad Hoc Networks, vol.and B. D. O. Anderson, "Wireless sensor network localization

  19. Data-driven modeling of phenomena in wireless sensor networks

    E-Print Network [OSTI]

    Kamthe, Ankur U.

    2012-01-01T23:59:59.000Z

    experimentation in wireless sensor networks. Commun. ACM,of Phenomena in Wireless Sensor Networks A dissertationBoavida, editors, Wireless Sensor Networks, volume 5970 of

  20. Decentralized TDOA Sensor Pairing in Multihop Wireless Sensor Networks

    E-Print Network [OSTI]

    Meng, Wei; Lihua, Xie; Wendong, Xiao

    2013-01-01T23:59:59.000Z

    localization in wireless sensor networks,” IEEE Signallocalization in wireless sensor networks,” IEEE Trans.techniques for wireless sensor networks: A survey,” IEEE

  1. Reliable and Efficient Programming Abstractions for Wireless Sensor Networks

    E-Print Network [OSTI]

    Kothari, Nupur; Gummadi, Ramakrishna; Millstein, Todd; Govindan, Ramesh

    2007-01-01T23:59:59.000Z

    Macro-programming wireless sensor networks using Kairos. InAbstractions for Wireless Sensor Networks Nupur Kothari ?Keywords Wireless Sensor Networks, Macroprogramming, En-

  2. On the Capacity of a Wireless Backhaul for the Distribution Level of the Smart Grid

    E-Print Network [OSTI]

    Namboodiri, Vinod

    , Advanced Metering Infrastructure (AMI), Communications, Smart Meter, Capacity. I. INTRODUCTION THE need1 On the Capacity of a Wireless Backhaul for the Distribution Level of the Smart Grid Babak Karimi distribution. The advanced metering infrastructure (AMI) is one such application scenario where bidirectional

  3. Capacity Analysis of a Wireless Backhaul for Metering in the Smart Grid

    E-Print Network [OSTI]

    Namboodiri, Vinod

    Capacity Analysis of a Wireless Backhaul for Metering in the Smart Grid Babak Karimi and Vinod. With the introduction of AMI technology, two-way communication between a smart meter (SM) and the control center, as well as between the smart meter and customer loads would be facilitated for demand response, dynamic

  4. Smart Wireless Sensor System for Lifeline Health Monitoring under a Disaster Event

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    of the acquired data and the flexibility of wireless communication technologies. We employ a non of millions. Early detection and preventive repair would be ideal but are not always possible. Therefore, real-time detection and timely damage control are the key to minimizing the adverse impact of such disaster events

  5. Energy Evaluation of PMCMTP for Large-Scale Wireless Sensor Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    slots inside each Personal Area Network (PAN)), · Energy balancing and saving to prolong networkEnergy Evaluation of PMCMTP for Large-Scale Wireless Sensor Networks Jamila Ben Slimane, Ye-Qiong Song, Anis Koub^aa§¶ and Mounir Frikha Sup'Com-MEDIATRON, City of Communication Technologies, 2083

  6. American Institute of Aeronautics and Astronautics Test Bed for a Wireless Network on Small UAVs

    E-Print Network [OSTI]

    Brown, Timothy X.

    American Institute of Aeronautics and Astronautics 1 Test Bed for a Wireless Network on Small UAVs. Examples include multi-UAV swarming, flocking, and sensing operations; or, as a communication relay of intermediate nodes which act as relays. Thus, understanding the performance of such networks in these UAV

  7. On the Energy Efficiency of Cognitive Radios -A Study of the Ad Hoc Wireless LAN Scenario

    E-Print Network [OSTI]

    Namboodiri, Vinod

    and determine if its usage can prove energy efficient in portable devices. Through this work we makeOn the Energy Efficiency of Cognitive Radios - A Study of the Ad Hoc Wireless LAN Scenario Anm of achieving better communication performance on selected spectrum. The benefits in terms of reduced energy

  8. On Physical Carrier Sensing in Wireless Ad Hoc Xue Yang and Njtin Vaidya

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    of Illinois at Urbana-Champaign Department of Electrical and Computer Engineering. and Coordinated Science. While channel utilization is determined by MAC overhead, physical carrier sense has been used suffer a significant loss. 1. INTRODUCTION Two fundamental aspects of wireless communication make

  9. * Dissertation Advisor: Dimitris Varoutas, Assistant Professor Connectivity Issues for Optical Wireless Networks

    E-Print Network [OSTI]

    Kouroupetroglou, Georgios

    . Therefore, multi-hop operation, which is a common technique in wireless radiofrequency (RF) communication, most of the solar radiation is getting absorbed by the ozone in the upper at- mosphere, leading. The insignificant background solar radiation and the strong atmospheric scattering enable the activation of NLOS

  10. Performance of Routing Protocols in HF Wireless Networks Eric E. Johnson*

    E-Print Network [OSTI]

    Johnson, Eric E.

    Balakrishnan* , and Zibin Tang* Klipsch School of Electrical and Computer Engineering New Mexico State-line-of-sight wireless communications for de- fense, diplomatic, and commercial applications. HF net- works are often environmental ef- fects, leading to intermittent link outages and even net- work partitions. Thus an indirect

  11. Cooperative Network Coding-Aware Routing for Multi-Rate Wireless Networks

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    for the high-rate links. In this paper, we propose the idea of coop- erative network coding (CNC) to exploit the maximal throughput of unicast traffic that can be achieved with CNC in multi-rate wireless networks. CNC evaluation demonstrates that a CNC-aware route selection scheme that leverages coopera- tive communication

  12. AN EFFICIENT REFORMULATION BASED VLSI ARCHITECTURE FOR ADAPTIVE VITERBI DECODING IN WIRELESS APPLICATIONS

    E-Print Network [OSTI]

    Arslan, Tughrul

    Edinburgh UK, EH93JL Email: y.gang@ed.ac.uk ABSTRACT New trends in wireless communication systems has and 256 in 3G protocol. On the other hand, combining cost, performance and energy complex to implement the con- ventional FEC scheme based on VA. The strategy of adaptation

  13. DESIGN AND DEVELOPMENT OF POWER-EFFICIENT WIRELESS SENSING UNITS FOR STRUCTURAL HEALTH

    E-Print Network [OSTI]

    Stanford University

    unit is designed not only for reliable communication of response measurements but also for power1 DESIGN AND DEVELOPMENT OF POWER-EFFICIENT WIRELESS SENSING UNITS FOR STRUCTURAL HEALTH MONITORING is intended to 1) collect measurement data from the sensors installed on a structure, 2) store, manage

  14. Minimizing Energy Consumption in IR-UWB Based Wireless Sensor Networks

    E-Print Network [OSTI]

    Heinzelman, Wendi

    Minimizing Energy Consumption in IR-UWB Based Wireless Sensor Networks Tianqi Wang, Wendi communications systems, where transmit power can be flexibly adjusted to minimize the energy consumption [3] [4 Heinzelman and Alireza Seyedi Department of Electrical and Computer Engineering, University of Rochester

  15. SecSens -Security Architecture for Wireless Sensor Networks Faruk Bagci, Theo Ungerer

    E-Print Network [OSTI]

    Ungerer, Theo

    of sensor boards. Keywords: wireless sensor network, security architec- ture, energy efficiency, multi between nodes enhances communication flexibility. Generally, sensor nodes have limited energy and re not be transferred to sensor networks. In recent years, the research was mainly focused on issues related to energy

  16. A Wideband Body-Enabled Millimeter-Wave Transceiver for Wireless Network-an-Chip

    E-Print Network [OSTI]

    Pande, Partha Pratim

    -A highly energy-efficient on-chip communication network is crucial for the development of future multiA Wideband Body-Enabled Millimeter-Wave Transceiver for Wireless Network-an-Chip Xinmin Yu, Suman Prasad Sah, Sujay Deb, Partha Pratim Pande, Benjamin Belzer, and Deukhyoun Heo School of Electrical

  17. Graphical modelling for simulation and formal analysis of wireless network protocols

    E-Print Network [OSTI]

    Jeavons, Peter

    , M. Fruth2 , and A. K. McIver3 1 National ICT Australia, Sydney, Australia; ansgar@nicta.com 2 School University, NSW 2109 Australia, and National ICT Australia; anabel@ics.mq.edu.au Abstract. The aim comprise devices with limited computing power together with wireless communication. Protocols

  18. Energy-Efficient Platform Designs for Real-World Wireless Sensing Applications

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    Unit Scheduler Power Mgr Driver Calib. PowerReg.&Distr.Switch windmill solar panel battery other the trade-offs of sensing devices, wireless interfaces, and computation and control units. We also cover Controller mod Sensor + Detector ADC /det Reference Loc. Sens. Sensing Unit Processing Unit Communication

  19. A Unified Channel-Network Coding Treatment for User Cooperation in Wireless Ad-Hoc Networks

    E-Print Network [OSTI]

    Li, Tiffany Jing

    beneficial for wireless systems, since while an individual channel operating alone may be useless due communicating with a common destination. We take a cross-layer approach and leverage the technologies from both channel coding has long been established as a fundamental technology for protecting bit streams from being

  20. Power-aware Routing in Wireless Packet Networks Javier Gomez, Andrew T. Campbell

    E-Print Network [OSTI]

    Gomez-Castellanos, Javier

    and energy consumption. Introduction Communication networks comprised of personal devices in close proximity will allow personal devices in a PAN to com- municate with each other via wireless links. A key.J. Watson Research Center Hawthorne, NY 10953, USA Abstract A key characteristic of Personal Area Networks

  1. Path Selection and Rate Allocation for Video Streaming in Multihop Wireless Networks

    E-Print Network [OSTI]

    Hou, Y. Thomas

    Laboratory, Washington, DC t The Bradley Department of Electrical and Computer Engineering, Virginia Tech incorporating the network layer parameters such as packet delay and loss. For the formulated problem, we propose in supporting video communications in wireless ad hoc networks [6], [8], [11], [17]. The main technical

  2. Arian Durresi Wireless MobileWireless Mobile

    E-Print Network [OSTI]

    Jain, Raj

    System (AMPS) 800 MHz, North America m Total Access Communication System (TACS) 900 MHz, Europe m Nordic Generations (Cont)Generations (Cont) q The need for second generation: m Capacity. The old systems were almost saturated m More services, specially value added m Analog system more vulnerable to physical influences

  3. Power Management in Wireless Networks Kevin Klues

    E-Print Network [OSTI]

    Jain, Raj

    Power Management in Wireless Networks Kevin Klues Abstract This paper presents a survey on the various power saving techniques used in wireless networking today. The work presented covers topics at each layer of a wireless networking protocol stack. The types of wireless networks considered include

  4. EECE 595: SPREAD SPECTRUM COMMUNICATIONS 1 Distributed Power Control in CDMA Cellular

    E-Print Network [OSTI]

    EECE 595: SPREAD SPECTRUM COMMUNICATIONS 1 Distributed Power Control in CDMA Cellular System Aly El-Osery Abstract In wireless cellular communication, it is essential to #12;nd e#11;ective means of power control control will heavily impact the system capacity. Distributed power control (DPC) is a natural choice

  5. EECE 595: SPREAD SPECTRUM COMMUNICATIONS 1 Distributed Power Control in CDMA Cellular

    E-Print Network [OSTI]

    EECE 595: SPREAD SPECTRUM COMMUNICATIONS 1 Distributed Power Control in CDMA Cellular System Aly El-Osery Abstract In wireless cellular communication, it is essential to #12;nd e#11;ective means of power control power control will heavily impact the system capacity. Distributed power control (DPC) is a natural

  6. Secure Communication in the Low-SNR Regime: A Characterization of the Energy-Secrecy Tradeoff

    E-Print Network [OSTI]

    Gursoy, Mustafa Cenk

    Secure Communication in the Low-SNR Regime: A Characterization of the Energy-Secrecy Tradeoff required for secure and reliable communications, and the wideband slope. Increased bit energy requirements to security issues, another pivotal concern in most wireless systems is energy-efficient operation especially

  7. Prediction of Fast Fading Mobile Radio Channels in Wideband Communication Systems

    E-Print Network [OSTI]

    Dong, Liang

    Prediction of Fast Fading Mobile Radio Channels in Wideband Communication Systems Liang Dong on the performance of wireless communication systems, such that the prediction of the changing channel behaviors-frequency prediction scheme has superior performance over conducting the channel predic- tion on a single frequency. I

  8. SECRET COMMUNICATION IN PRESENCE OF COLLUDING EAVESDROPPERS Satashu Goel and Rohit Negi

    E-Print Network [OSTI]

    Yener, Aylin

    SECRET COMMUNICATION IN PRESENCE OF COLLUDING EAVESDROPPERS Satashu Goel and Rohit Negi ECE consider the problem of secret communications be- tween two nodes over a wireless link in the presence with multiple antennas. Com- munication is secret if the eavesdropper is unable to decode the message whereas

  9. Proactive mobile wireless networks : an infrastructureless wireless network architecture for delay-sensitive applications

    E-Print Network [OSTI]

    Dai, Lillian Lei, 1978-

    2008-01-01T23:59:59.000Z

    Infrastructureless wireless networks are an important class of wireless networks that is best suited for scenarios where there is temporary and localized telecommunication demand. Such networks consist of wireless devices ...

  10. MFC Communications Infrastructure Study

    SciTech Connect (OSTI)

    Michael Cannon; Terry Barney; Gary Cook; George Danklefsen, Jr.; Paul Fairbourn; Susan Gihring; Lisa Stearns

    2012-01-01T23:59:59.000Z

    Unprecedented growth of required telecommunications services and telecommunications applications change the way the INL does business today. High speed connectivity compiled with a high demand for telephony and network services requires a robust communications infrastructure.   The current state of the MFC communication infrastructure limits growth opportunities of current and future communication infrastructure services. This limitation is largely due to equipment capacity issues, aging cabling infrastructure (external/internal fiber and copper cable) and inadequate space for telecommunication equipment. While some communication infrastructure improvements have been implemented over time projects, it has been completed without a clear overall plan and technology standard.   This document identifies critical deficiencies with the current state of the communication infrastructure in operation at the MFC facilities and provides an analysis to identify needs and deficiencies to be addressed in order to achieve target architectural standards as defined in STD-170. The intent of STD-170 is to provide a robust, flexible, long-term solution to make communications capabilities align with the INL mission and fit the various programmatic growth and expansion needs.

  11. Energy Cooperation in Energy Harvesting Two-Way Communications

    E-Print Network [OSTI]

    Ulukus, Sennur

    Energy Cooperation in Energy Harvesting Two-Way Communications Berk Gurakan1 , Omur Ozel1 , Jing energy from nature and energy can be transferred in one-way from one of the users to the other. Energy and users have unlimited batteries to store energy for future use. In addition, there is a separate wireless

  12. Networking Challenges and Principles in Diffusion-based Molecular Communication

    E-Print Network [OSTI]

    Politčcnica de Catalunya, Universitat

    monitoring systems. How nanomachines will communicate is still an important challenge for the networking of nanotechnology in the biomedical, environmental and industrial fields. One of the most promising paradigms. In this work, the key differences of the physical channel of DMC with respect to the wireless electromagnetic

  13. IEEE Communications Magazine December 200186 An Overview of the

    E-Print Network [OSTI]

    Scarano, Vittorio

    -range connectivity solution for personal, portable, and handheld electronic devices. Since May 1998 the Bluetooth SIG by the short-range personal wireless connectivity technologies that allow per- sonal devices to communicate to connect their personal devices with other devices that enter the bubble. Connectivity in this bubble

  14. Gallium Lighting, LLC, Accepts Inaugural Position on the Industry Advisory Board of UC-Light Center to Help Bring Wireless Data

    E-Print Network [OSTI]

    -Light Center to Help Bring Wireless Data Communications Capabilities to LED Lights Fayetteville, GA ­ February for their Energy Star rated products and produce some of the most energy efficient, environmentally friendly on the Industry Advisory Board for the Center for Ubiquitous Communication by Light (UC-Light Center) based

  15. 1 INTRODUCTION Wireless sensor networks tailored for structural

    E-Print Network [OSTI]

    Lynch, Jerome P.

    1 INTRODUCTION Wireless sensor networks tailored for structural monitoring applications have grown motivated researchers to explore wireless sensor networks for structural monitoring applications. Wireless in popularity since their initial introduction in the mid-1990s. Wireless sensors have the potential

  16. Wireless device monitoring methods, wireless device monitoring systems, and articles of manufacture

    DOE Patents [OSTI]

    McCown, Steven H. (Rigby, ID); Derr, Kurt W. (Idaho Falls, ID); Rohde, Kenneth W. (Idaho Falls, ID)

    2012-05-08T23:59:59.000Z

    Wireless device monitoring methods, wireless device monitoring systems, and articles of manufacture are described. According to one embodiment, a wireless device monitoring method includes accessing device configuration information of a wireless device present at a secure area, wherein the device configuration information comprises information regarding a configuration of the wireless device, accessing stored information corresponding to the wireless device, wherein the stored information comprises information regarding the configuration of the wireless device, comparing the device configuration information with the stored information, and indicating the wireless device as one of authorized and unauthorized for presence at the secure area using the comparing.

  17. TCPL: A Defense against wormhole attacks in wireless sensor networks

    SciTech Connect (OSTI)

    Kumar, K. E. Naresh [PG Student, Dept of Computer Science and Engineering, KBNCE, Gulbarga, Karnataka (India); Waheed, Mohd. Abdul [Asst. Professor, Dept of Computer Science and Engineering, KBNCE, Gulbarga, Karnataka (India); Basappa, K. Kari [Professor, Dept of E and CE, Dayanand College of Engineering, Banglore, Karnataka (India)

    2010-10-26T23:59:59.000Z

    Do In this paper presents recent advances in technology have made low-cost, low-power wireless sensors with efficient energy consumption. A network of such nodes can coordinate among themselves for distributed sensing and processing of certain data. For which, we propose an architecture to provide a stateless solution in sensor networks for efficient routing in wireless sensor networks. This type of architecture is known as Tree Cast. We propose a unique method of address allocation, building up multiple disjoint trees which are geographically inter-twined and rooted at the data sink. Using these trees, routing messages to and from the sink node without maintaining any routing state in the sensor nodes is possible. In this paper, we introduce the wormhole attack, a severe attack in ad hoc networks that is particularly challenging to defend against. The wormhole attack is possible even if the attacker has not compromised any hosts and even if all communication provides authenticity and confidentiality. In the wormhole attack, an attacker records packets (or bits) at one location in the network, tunnels them to another location, and retransmits them there into the network. The wormhole attack can form a serious threat in wireless networks, especially against many sensor network routing protocols and location-based wireless security systems. For example, most existing ad hoc network routing protocols, without some mechanism to defend against the wormhole attack, would be unable to find routes longer than one or two hops, severely disrupting communication. We present a new, general mechanism, called packet leashes, for detecting and thus defending against wormhole attacks, and we present a specific protocol, called TIK, that implements leashes.

  18. Wireless passive radiation sensor

    DOE Patents [OSTI]

    Pfeifer, Kent B; Rumpf, Arthur N; Yelton, William G; Limmer, Steven J

    2013-12-03T23:59:59.000Z

    A novel measurement technique is employed using surface acoustic wave (SAW) devices, passive RF, and radiation-sensitive films to provide a wireless passive radiation sensor that requires no batteries, outside wiring, or regular maintenance. The sensor is small (<1 cm.sup.2), physically robust, and will operate unattended for decades. In addition, the sensor can be insensitive to measurement position and read distance due to a novel self-referencing technique eliminating the need to measure absolute responses that are dependent on RF transmitter location and power.

  19. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. XX, NO. XX, MONTH 20XX 1 Decentralized Economic Dispatch in Microgrids via

    E-Print Network [OSTI]

    Zhuang, Weihua

    Economic Dispatch in Microgrids via Heterogeneous Wireless Networks Hao Liang, Student Member, IEEE, Bong at the minimum cost based on the economic dispatch. In this paper, we propose a decentralized economic dispatch wireless communication devices are used to establish an ad hoc network as a basic information exchange

  20. Departmental Communications

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1978-09-26T23:59:59.000Z

    The order establishes standards on eliminating gender-specific terminology from all DOE communications. Canceled by DOE O 1321.139.

  1. 1Center for Wireless Technology Eindhoven Where innovation starts

    E-Print Network [OSTI]

    Franssen, Michael

    1Center for Wireless Technology Eindhoven Where innovation starts Department of Electrical Engineering Center for Wireless Technology Eindhoven #12;2 3Center for Wireless Technology Eindhoven Wireless Technology Eindhoven The Center for Wireless Technology The recent establishment of the Center for Wireless

  2. Charles Eames and communication : from education to computers

    E-Print Network [OSTI]

    Lai, Constance Chunlan, 1972-

    1999-01-01T23:59:59.000Z

    This thesis looks at a variety of projects done by Charles and Ray Eames that emphasize their interest in communication leading up to their 1953 film A Communications Primer. The significance of this film is threefold: ...

  3. Design and Implementation of a Wireless Sensor Network for Smart Homes

    E-Print Network [OSTI]

    Xu, Ming; Xia, Feng; Yuan, Tengkai; Qian, Jixin; Shao, Meng

    2010-01-01T23:59:59.000Z

    Wireless sensor networks (WSNs) have become indispensable to the realization of smart homes. The objective of this paper is to develop such a WSN that can be used to construct smart home systems. The focus is on the design and implementation of the wireless sensor node and the coordinator based on ZigBee technology. A monitoring system is built by taking advantage of the GPRS network. To support multi-hop communications, an improved routing algorithm based on the Dijkstra algorithm is presented. Preliminary simulations have been conducted to evaluate the performance of the algorithm.

  4. Business communications

    SciTech Connect (OSTI)

    Bratten, W.A.; Emrich, M.L.

    1989-01-01T23:59:59.000Z

    Over the last few years, the need to communicate worldwide has produced positive results among standards bodies. This enabled differing factions to resolve conflicts among higher layer protocols. The European communities regulatory bodies will gain considerable flexibility with a uniform standard. At present X.400 stands ready to provide global business communication. 9 refs., 1 fig.

  5. Closing the Loop over Wireless Networks:Closing the Loop over Wireless Networks: Fundamentals and Applications

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    4/9/2008 1 Closing the Loop over Wireless Networks:Closing the Loop over Wireless Networks Johansson, Pan Gun Park, Emmanuel Witrant Closing the Loop over Wireless Networks:Closing the Loop over Wireless Networks: Fundamentals and Applications Karl H. Johansson Electrical Engineering, Royal Institute

  6. Wireless Josephson amplifier

    SciTech Connect (OSTI)

    Narla, A.; Sliwa, K. M.; Hatridge, M.; Shankar, S.; Frunzio, L.; Schoelkopf, R. J.; Devoret, M. H. [Department of Applied Physics, Yale University, New Haven, Connecticut 06511 (United States)

    2014-06-09T23:59:59.000Z

    Josephson junction parametric amplifiers are playing a crucial role in the readout chain in superconducting quantum information experiments. However, their integration with current 3D cavity implementations poses the problem of transitioning between waveguide, coax cables, and planar circuits. Moreover, Josephson amplifiers require auxiliary microwave components, like directional couplers and/or hybrids, that are sources of spurious losses and impedance mismatches that limit measurement efficiency and amplifier tunability. We have developed a wireless architecture for these parametric amplifiers that eliminates superfluous microwave components and interconnects. This greatly simplifies their assembly and integration into experiments. We present an experimental realization of such a device operating in the 9–11?GHz band with about 100?MHz of amplitude gain-bandwidth product, on par with devices mounted in conventional sample holders. The simpler impedance environment presented to the amplifier also results in increased amplifier tunability.

  7. A miniature, implantable wireless neural stimulation system

    E-Print Network [OSTI]

    Arfin, Scott K. (Scott Kenneth)

    2006-01-01T23:59:59.000Z

    In this thesis, I present the design of a wireless neural stimulation system. The system consists of an external transmitter, controllable through a computer interface, and a miniature, implantable wireless receiver and ...

  8. Efficient network camouflaging in wireless networks 

    E-Print Network [OSTI]

    Jiang, Shu

    2006-04-12T23:59:59.000Z

    when protected networks are wireless networks, such as sensor networks and mobile ad hoc networks. The reason is that wireless networks are typically subject to resource constraints (e.g. bandwidth, power supply) and possess some unique characteristics...

  9. Improving performance of TCP over wireless networks

    E-Print Network [OSTI]

    Mehta, Miten N.

    1998-01-01T23:59:59.000Z

    TCP has been designed and tuned to perform well on a phics. wired network made up of links with low bit-error rates. Wireless networks and heterogeneous networks consisting of wired and wireless links have many different characteristics compared...

  10. Wilis: Architectural Modeling of Wireless Systems

    E-Print Network [OSTI]

    Fleming, Kermin Elliott

    The performance of a wireless system depends on the wireless channel as well as the algorithms used in the transceiver pipelines. Because physical phenomena affect transceiver pipelines in difficult to predict ways, detailed ...

  11. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 23, NO. 2, FEBRUARY 2005 201 Cognitive Radio: Brain-Empowered

    E-Print Network [OSTI]

    Shihada, Basem

    2002, the Federal Communica- tions Commission (FCC) published a report prepared by the SpectrumIEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 23, NO. 2, FEBRUARY 2005 201 Cognitive Radio: Brain-Empowered Wireless Communications Simon Haykin, Life Fellow, IEEE Invited Paper Abstract

  12. Longmont Power & Communications- Commercial and Industrial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    Longmont Power & Communications, in conjunction with the Platte River Power Authority provides businesses incentives for new construction projects and existing building retrofits. The Electric...

  13. Demonstrating Dynamic Wireless Charging of an Electric Vehicle - The benefit of Electrochemical Capacitor Smoothing

    SciTech Connect (OSTI)

    Miller (JNJ), John M. [JNJ-Miller PLC] [JNJ-Miller PLC; Onar, Omer C [ORNL] [ORNL; White, Cliff P [ORNL] [ORNL; Campbell, Steven L [ORNL] [ORNL; Coomer, Chester [ORNL] [ORNL; Seiber, Larry Eugene [ORNL] [ORNL; Sepe, Raymond B [ORNL] [ORNL; Steyerl, Anton [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    The wireless charging of an electric vehicle (EV) while it is in motion presents challenges in terms of low-latency communications for roadway coil excitation sequencing and maintenance of lateral alignment, plus the need for power-flow smoothing. This article summarizes the experimental results on power smoothing of in-motion wireless EV charging performed at the Oak Ridge National Laboratory (ORNL) using various combinations of electrochemical capacitors at the grid side and in the vehicle. Electrochemical capacitors of the symmetric carbon carbon type from Maxwell Technologies comprised the in-vehicle smoothing of wireless charging current to the EV battery pack. Electro Standards Laboratories (ESL) fabricated the passive and active parallel lithium-capacitor (LiC) unit used to smooth the grid-side power. The power pulsation reduction was 81% on the grid by the LiC, and 84% on the vehicle for both the LiC and the carbon ultracapacitors (UCs).

  14. Steam distribution and energy delivery optimization using wireless sensors

    SciTech Connect (OSTI)

    Olama, Mohammed M [ORNL; Allgood, Glenn O [ORNL; Kuruganti, Phani Teja [ORNL; Sukumar, Sreenivas R [ORNL; Djouadi, Seddik M [ORNL; Lake, Joe E [ORNL

    2011-01-01T23:59:59.000Z

    The Extreme Measurement Communications Center at Oak Ridge National Laboratory (ORNL) explores the deployment of a wireless sensor system with a real-time measurement-based energy efficiency optimization framework in the ORNL campus. With particular focus on the 12-mile long steam distribution network in our campus, we propose an integrated system-level approach to optimize the energy delivery within the steam distribution system. We address the goal of achieving significant energy-saving in steam lines by monitoring and acting on leaking steam valves/traps. Our approach leverages an integrated wireless sensor and real-time monitoring capabilities. We make assessments on the real-time status of the distribution system by mounting acoustic sensors on the steam pipes/traps/valves and observe the state measurements of these sensors. Our assessments are based on analysis of the wireless sensor measurements. We describe Fourier-spectrum based algorithms that interpret acoustic vibration sensor data to characterize flows and classify the steam system status. We are able to present the sensor readings, steam flow, steam trap status and the assessed alerts as an interactive overlay within a web-based Google Earth geographic platform that enables decision makers to take remedial action. We believe our demonstration serves as an instantiation of a platform that extends implementation to include newer modalities to manage water flow, sewage and energy consumption.

  15. Distributed Wireless Multi-Sensor Technologies, A Novel Approach to Reduce Motor Energy Usage

    SciTech Connect (OSTI)

    Daniel Sexton

    2008-03-28T23:59:59.000Z

    This report is the final report for the General Electric Distributed Wireless Multi-Sensor Technologies project. The report covers the research activities and benefits surrounding wireless technology used for industrial sensing applications. The main goal of this project was to develop wireless sensor technology that would be commercialized and adopted by industry for a various set of applications. Many of these applications will yield significant energy savings. One application where there was significant information to estimate a potential energy savings was focused on equipment condition monitoring and in particular electric motor monitoring. The results of the testing of the technology developed are described in this report along with the commercialization activities and various new applications and benefits realized.

  16. Mobile Agents for Wireless Sensor Networks Faruk Bagci1, Julian Wolf1, Theo Ungerer1, and Nader Bagherzadeh2

    E-Print Network [OSTI]

    Ungerer, Theo

    connection between nodes enhances communication flexibility. Service development on memory and energy limitedMobile Agents for Wireless Sensor Networks Faruk Bagci1, Julian Wolf1, Theo Ungerer1, and Nader}@informatik.uni-augsburg.de 2Department of Electrical Engineering and Computer Science, University of California, Irvine, USA

  17. Power Control in Wireless Cellular Networks

    E-Print Network [OSTI]

    Chiang, Mung

    Power Control in Wireless Cellular Networks #12;#12;Power Control in Wireless Cellular Networks R in Networking sample Vol. x, No y (2008) 1­156 c 2008 Power Control in Wireless Cellular Networks, and connectivity. Power control in both uplink and downlink of a cellular network has been extensively studied

  18. EEL 6591: Wireless Networks Spring 2014

    E-Print Network [OSTI]

    Latchman, Haniph A.

    EEL 6591: Wireless Networks Spring 2014 Instructor: Professor Yuguang "Michael" Fang Contact: 435-Hall, 2002. References: 1. Broadband Wireless Multimedia Networks by Benny Bing, John Wiley, 2013. 2. Wireless and Mobile Network Architecture by Yi-Bing Lin and Imrich Chlamtac, John Wiley & Sons, 2000. 3

  19. Radioactive Target Detection Using Wireless Sensor Network

    E-Print Network [OSTI]

    Zhang, Tonglin

    Chapter 31 Radioactive Target Detection Using Wireless Sensor Network Tonglin Zhang Abstract for wireless sensor network data to detect and locate a hidden nuclear target in a large study area. The method assumes multiple radiation detectors have been used as sensor nodes in a wireless sensor network

  20. Gradient Clock Synchronization in Wireless Sensor Networks

    E-Print Network [OSTI]

    Gradient Clock Synchronization in Wireless Sensor Networks Philipp Sommer Computer Engineering- olution. Without doubt, time is a first-class citizen in wireless sensor networks. Without accurate time if the nodes in the wireless sensor network manage to have an adequate agreement of time. Indeed

  1. Optimal Deployment of Impromptu Wireless Sensor Networks

    E-Print Network [OSTI]

    Kumar, Anurag

    Optimal Deployment of Impromptu Wireless Sensor Networks Prasenjit Mondal, K. P. Naveen and Anurag to deploy sensors (such as motion sensors, or even imaging sensors) and a wireless interconnection network an impromptu deploy- ment of a wireless sensor network in a building. Fig. 2. Problem studied in this paper

  2. Distributed A Wireless Sensor Network for

    E-Print Network [OSTI]

    Distributed Computing A Wireless Sensor Network for Orienteering Competitions Master's Thesis-wave Monopole Antennas . . . . . . . . . . . . . 13 5 MAC and Routing in Wireless Sensor Networks 14 5.1 Medium and waterproof cases free of charge. i #12;Abstract This thesis deals with the development of a wireless sensor

  3. White Wind Farms Strategic Communications Campaign

    E-Print Network [OSTI]

    Ford, Gina; Noulles, Mary; James, Jessica

    2014-09-03T23:59:59.000Z

    White Wind Farms is a small, startup Kansas winery located in Paola. The goal of this project was to develop a strategic marketing communications plan to assist in the growth and development of the White Wind Farms brand..

  4. Networked UAV Command, Control and Communication

    E-Print Network [OSTI]

    Frew, Eric W.

    climate change.3 Aerial platforms have been demonstrated to be ideal for use in maintaining these mobileNetworked UAV Command, Control and Communication Jack Elston , Eric Frew , Brian Argrow University of Colorado, Boulder, CO, 80309, USA The networked UAV command, control, and communication project

  5. Blackberry Creek Daylighting Project, Berkeley : Ten-Year Post-Project Appraisal

    E-Print Network [OSTI]

    Gerson, Stephanie Karla; Wardani, Jane; Niazi, Shiva

    2005-01-01T23:59:59.000Z

    manager. Personal Communication. December Creek Currents.1994. Blackberry Creek restoration project.Creek Currents. Berkeley, California. Spring/Summer 1994. p.

  6. Low-Cost, Robust, Threat-aware Wireless Sensor Network for Assuring the Nation's Energy Infrastructure

    SciTech Connect (OSTI)

    Carlos H. Rentel

    2007-03-31T23:59:59.000Z

    The objective of this project was to create a low-cost, robust anticipatory wireless sensor network (A-WSN) to ensure the security and reliability of the United States energy infrastructure. This document highlights Eaton Corporation's plan to bring these technologies to market.

  7. Opportunistic Source Coding for Data Gathering in Wireless Sensor Networks

    E-Print Network [OSTI]

    1 Opportunistic Source Coding for Data Gathering in Wireless Sensor Networks Tao Cui, Lijun Chen capacity of multihop wireless networks, an important topic addressed by wireless sensor networks community for correlated data gathering in wireless sensor networks, which ex- ploits the broadcast nature of wireless

  8. Signal Processing Algorithms for Ultra-Wideband Wireless Communications

    E-Print Network [OSTI]

    Langendoen, Koen

    statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Thesis outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 3.3.1 Simple Matched Filter Receiver . . . . . . . . . . . . . . . . . . 36 3.3.2 Blind Multiple

  9. I. INTRODUCTION While the very beginning of wireless communication

    E-Print Network [OSTI]

    Bahk, Saewoong

    but increase capital expenditure (CAPEX) and operational expenditure (OPEX). For the CAPEX viewpoint, more BSs

  10. WIRELESS COMMUNICATIONS AND MOBILE COMPUTING Wirel. Commun. Mob. Comput. (2008)

    E-Print Network [OSTI]

    Lu, Chenyang

    2008-01-01T23:59:59.000Z

    of a network by adjusting the transmission power at each node. Sleep scheduling reduces the radio energy wasted approaches, transmission power control and sleep scheduling, have been proposed to reduce the radio power existing transmission power control and sleep scheduling approaches and then describe a Unified Radio Power

  11. Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking

    E-Print Network [OSTI]

    Wilmers, Chris

    2011, Article ID 968046, 14 pages doi:10.1155/2011/968046 Research Article CARNIVORE: A Disruption article distributed under the Creative Commons Attribution License, which permits unrestricted use, ARGOS has very low data rate capabilities over a simplex data channel (1.5­7.2 kbits day -1) [5]; radio

  12. Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2010, Article ID 919072, 17 pages doi:10.1155/2010/919072 Research Article Crystallized Rate Regions. This is an open access article distributed under the Creative Commons Attribution License, which permits users and solve it using the Simplex method. Finally, numerical results are provided to confirm our

  13. Adaptive array antenna design for wireless communication systems 

    E-Print Network [OSTI]

    Noordin, Nurul Hazlina

    2013-11-28T23:59:59.000Z

    Adaptive array antennas use has been limited to non-commercial applications due to their high cost and hardware complexity. The implementation cost of adaptive array antennas can be kept to a minimum by using cost effective ...

  14. Topology Control in Ad Hoc Wireless Networks Using Cooperative Communication

    E-Print Network [OSTI]

    Wu, Jie

    energy consumption within its 2-hop neighborhood without losing connectivity under the CC model such that the resulting topology is strongly connected and the total energy expenditure for achieving the strong connectivity is minimized. In order to reduce the energy consumption, we take advantage of a physical layer

  15. VLSI Implementation of Lattice Reduction for MIMO Wireless Communication Systems

    E-Print Network [OSTI]

    Gulak, P. Glenn

    Halupka, Oleksiy Tyshchenko, Siamak Sarvari, Alireza Nilchi and William Song. iii #12;Acknowledgements I Department of Electrical and Computer Engineering University of Toronto c Copyright by Ameer Youssef 2010 #12 Tabatabaei, Hayssam Dahrouj, Siyu Liu, Mahdi Shabany, Peyman Razaghi, Wong Ming Fai (Patrick), Weifei Zeng

  16. Role of Directional Wireless Communication in Vehicular Networks

    E-Print Network [OSTI]

    expressed in this material are those of the author(s) and do not necessarily reflect the views such anti-lock brake systems (ABS), traction control systems (TCS) and electronic stability control (ESC the line-of-sight can be ef- ficiently enhanced by enabling vehicle-to-vehicle (V2V) and vehicle

  17. Network Decoupling for Secure Communications in Wireless Sensor Networks

    E-Print Network [OSTI]

    Xuan, Dong

    , Sriram Chellappan and Dong Xuan Department of Computer Science and Engineering The Ohio-State University, Columbus, Ohio 43210­1277 Email: gu, baixia, chellapp, xuanˇ @cse.ohio-state.edu Abstract-- Secure- straints in energy and memory, etc. For instance, the traditional public key cryptography [1], [2] is too

  18. WIRELESS COMMUNICATIONS AND MOBILE COMPUTING Wirel. Commun. Mob. Comput. (2012)

    E-Print Network [OSTI]

    Stojanovic, Milica

    deployable autonomous underwater systems (floating sensors, crawlers, vehicles), we address the problem observations. System performance is assessed through simulation, by measuring the energy consumption, time of cooperating autonomous underwater vehicles (AUVs). Ad hoc deployable systems with both mobile and slowly drift

  19. Hybrid, Optical and Wireless Near-Gigabit Communications System

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    affect the system design. Problems such as power amplifier (PA) non-linearity and oscillator phase noise. A single carrier architecture is adopted. The system uses low complexity baseband processing modules. A byte/frame synchronization technique is designed to provide a high value of the preamble detection

  20. Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , requiring the use of a highly linear amplifier which leads to low power efficiency [1]. Moreover, when symbol using order statistics. This amplitude PDF enables one to derive the signal-to-noise the simulations and make the system design easier. 1. Introduction Orthogonal frequency division multiplexing

  1. WIRELESS COMMUNICATIONS AND MOBILE COMPUTING Wirel. Commun. Mob. Comput. (2010)

    E-Print Network [OSTI]

    Liang, Weifa

    2010-01-01T23:59:59.000Z

    gathering; energy efficiency; network lifetime; sensor network *Correspondence Weifa Liang, School. To avoid sensor extinctions due to the exhaustion of their batteries, any energy efficient routing, Australia 2 School of Computer Science and Technology, University of Science and Technology of China, Hefei

  2. Efficient Transmitters for Wireless Communications in Nanoscale CMOS Technology

    E-Print Network [OSTI]

    Chowdhury, Debopriyo

    2010-01-01T23:59:59.000Z

    output power,” in IEEE European Solid-State Circuitsoutput power,” in IEEE International Solid State Circuits+22dbm linear power ampli?er,” IEEE Journal of Solid State

  3. CMOS RF power amplifier design approaches for wireless communications

    E-Print Network [OSTI]

    Pornpromlikit, Sataporn

    2010-01-01T23:59:59.000Z

    cas- code power amplifier,” IEEE Journal of Solid-Statestacked FET power amplifiers,” IEEE Journal of Solid-StateGSM/GPRS CMOS power amplifier,” IEEE Journal of Solid-State

  4. CMOS RF Power Amplifier Design for Wireless Communications

    E-Print Network [OSTI]

    FANG, Qiang

    2012-01-01T23:59:59.000Z

    conjugate (S22) match (solid curve) and power match (dashedSupply Linear RF Power Amplifier", IEEE J. Solid-State Circ.Fully-integrated CMOS Power Amplifiers", IEEE J. Solid-State

  5. High efficiency switching-mode amplifiers for wireless communication systems

    E-Print Network [OSTI]

    Hung, Tsai-Pi

    2008-01-01T23:59:59.000Z

    tuned single-ended power amplifiers,” IEEE J. Solid Statetuned single-ended power amplifiers,” IEEE J. Solid StateE tuned power amplifier,” IEEE J. Solid State Circuits, vol.

  6. High efficiency switching-mode amplifiers for wireless communication systems

    E-Print Network [OSTI]

    Hung, Tsai-Pi

    2008-01-01T23:59:59.000Z

    M. Asbeck, “Design of high-efficiency current-mode class-Dand G. Rabjohn, “A high efficiency Chireix Out- phasingE-A new class of high efficiency tuned single-ended power

  7. A Cooperative Communication Protocol for Wireless Ad-hoc Networks

    E-Print Network [OSTI]

    , MMII. All rights reserved. The author hereby grants to MIT permission to reproduce and distribute in the network layer, where all nodes act as routers to relay messages. Cooperative transmission takes this idea. He was quick to o#11;er solutions when I worked my way into a corner, and constantly prompted me

  8. SECURING WiMAX WIRELESS COMMUNICATIONS Shirley Radack, Editor

    E-Print Network [OSTI]

    and Matthew Sexton (of Booz Allen Hamilton), this publication provides information to organizations about Wi

  9. Wireless Relay Communication System for Multiple Small Robots

    E-Print Network [OSTI]

    Baumgartner, Jeremy Gordon

    2015-01-01T23:59:59.000Z

    from radio to radio, called the Fresnel zone. [2] In or- derno more than 40% of the Fresnel zone can be obstructed. Thisob- struction for the Fresnel zones. Thus, short robots have

  10. High-performance signal acquisition algorithms for wireless communications receivers

    E-Print Network [OSTI]

    Shi, Kai

    2006-10-30T23:59:59.000Z

    . Hangup in Digital PLL . . . . . . . . . . . . . . . . . . . . 12 D. Anti-hangup Timing Recovery Scheme . . . . . . . . . . . 14 E. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 III JITTER-FREE FEEDFORWARD TIMING RECOVERY FOR NARROWBAND... SYSTEMS . . . . . . . . . . . . . . . . . . . . 25 A. Jitter-Free Prefilter for Feedforward Timing Recovery of Linear Modulations . . . . . . . . . . . . . . . . . . . . 25 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . 25 2. Signal Model...

  11. Wireless Relay Communication System for Multiple Small Robots

    E-Print Network [OSTI]

    Baumgartner, Jeremy Gordon

    2015-01-01T23:59:59.000Z

    instrumented Bixler 2 plane. . . . . . . . . . . . . . . .are selected. First is a Bixler 2, which has a 1.5 meterweight and power to the Bixler 2, except for a slightly

  12. CMOS RF power amplifier design approaches for wireless communications

    E-Print Network [OSTI]

    Pornpromlikit, Sataporn

    2010-01-01T23:59:59.000Z

    high-efficiency monolithic InGaP/GaAs HBT power amplifiersdBc @ 26 dBm AB HBT Jager 02 InGaP/GaAs -37 dBc @ 27 dBm N/A23.9 dBm AB HBT Zhang 09 InGaP/GaAs 44.5% N/A -38 dBc @ 28

  13. Modeling energy consumption of wireless communications in OMNeT++

    E-Print Network [OSTI]

    Breu, Ruth

    , performance evaluation is usually based on simulation mod- els. Nevertheless, measurements are necessary based on two scenarios: the analysis of the energy performance of IEEE 802.15.4 and the evaluation network lifetime [3] ­, we re- alized that varying techniques are used for evaluation and analysis

  14. Lead, Communications Specialist

    Broader source: Energy.gov [DOE]

    A successful candidate in this position will: Serve as Lead, Communications Specialist for the Communications Team. Assists the Communications Director in planning, coordinating and implementing...

  15. Wireless technology for integrated manufacturing

    SciTech Connect (OSTI)

    Manges, W.W.; Allgood, G.O.; Shourbaji, A.A.

    1996-08-01T23:59:59.000Z

    This paper describes the ground breaking work in Oak Ridge facilities that now leads us to the brink of the wireless revolution in manufacturing. The focus is on solving tough technological problems necessary for success and addressing the critical issues of throughput, security, reliability, and robustness in applying wireless technology to manufacturing processes. Innovative solutions to these problems are highlighted through detailed designs and testbed implementations that demonstrate key concepts. The DOE-Oak Ridge complex represented by the Oak Ridge Centers for Manufacturing Technologies (ORCMT) continues to develop these technologies and will continue to focus on solving tough manufacturing problems.

  16. WIRELESS FOR A NUCLEAR FACILITY

    SciTech Connect (OSTI)

    Shull, D; Joe Cordaro, J

    2007-03-28T23:59:59.000Z

    The introduction of wireless technology into a government site where nuclear material is processed and stored brings new meaning to the term ''harsh environment''. At SRNL, we are attempting to address not only the harsh RF and harsh physical environment common to industrial facilities, but also the ''harsh'' regulatory environment necessitated by the nature of the business at our site. We will discuss our concepts, processes, and expected outcomes in our attempts to surmount the roadblocks and reap the benefits of wireless in our ''factory''.

  17. Wireless Sensor Network for Electric Transmission Line Monitoring

    SciTech Connect (OSTI)

    Alphenaar, Bruce

    2009-06-30T23:59:59.000Z

    Generally, federal agencies tasked to oversee power grid reliability are dependent on data from grid infrastructure owners and operators in order to obtain a basic level of situational awareness. Since there are many owners and operators involved in the day-to-day functioning of the power grid, the task of accessing, aggregating and analyzing grid information from these sources is not a trivial one. Seemingly basic tasks such as synchronizing data timestamps between many different data providers and sources can be difficult as evidenced during the post-event analysis of the August 2003 blackout. In this project we investigate the efficacy and cost effectiveness of deploying a network of wireless power line monitoring devices as a method of independently monitoring key parts of the power grid as a complement to the data which is currently available to federal agencies from grid system operators. Such a network is modeled on proprietary power line monitoring technologies and networks invented, developed and deployed by Genscape, a Louisville, Kentucky based real-time energy information provider. Genscape measures transmission line power flow using measurements of electromagnetic fields under overhead high voltage transmission power lines in the United States and Europe. Opportunities for optimization of the commercial power line monitoring technology were investigated in this project to enable lower power consumption, lower cost and improvements to measurement methodologies. These optimizations were performed in order to better enable the use of wireless transmission line monitors in large network deployments (perhaps covering several thousand power lines) for federal situational awareness needs. Power consumption and cost reduction were addressed by developing a power line monitor using a low power, low cost wireless telemetry platform known as the ''Mote''. Motes were first developed as smart sensor nodes in wireless mesh networking applications. On such a platform, it has been demonstrated in this project that wireless monitoring units can effectively deliver real-time transmission line power flow information for less than $500 per monitor. The data delivered by such a monitor has during the course of the project been integrated with a national grid situational awareness visualization platform developed by Oak Ridge National Laboratory. Novel vibration energy scavenging methods based on piezoelectric cantilevers were also developed as a proposed method to power such monitors, with a goal of further cost reduction and large-scale deployment. Scavenging methods developed during the project resulted in 50% greater power output than conventional cantilever-based vibrational energy scavenging devices typically used to power smart sensor nodes. Lastly, enhanced and new methods for electromagnetic field sensing using multi-axis magnetometers and infrared reflectometry were investigated for potential monitoring applications in situations with a high density of power lines or high levels of background 60 Hz noise in order to isolate power lines of interest from other power lines in close proximity. The goal of this project was to investigate and demonstrate the feasibility of using small form factor, highly optimized, low cost, low power, non-contact, wireless electric transmission line monitors for delivery of real-time, independent power line monitoring for the US power grid. The project was divided into three main types of activity as follows; (1) Research into expanding the range of applications for non-contact power line monitoring to enable large scale low cost sensor network deployments (Tasks 1, 2); (2) Optimization of individual sensor hardware components to reduce size, cost and power consumption and testing in a pilot field study (Tasks 3,5); and (3) Demonstration of the feasibility of using the data from the network of power line monitors via a range of custom developed alerting and data visualization applications to deliver real-time information to federal agencies and others tasked with grid reliability (Tasks 6,8)

  18. Magnetostatic communication

    DOE Patents [OSTI]

    Daily, William D. (Livermore, CA)

    2008-02-26T23:59:59.000Z

    A system for providing communication of information by modulating a magnetostatic field with a magnetostatic transmitter that modulates said magnetostatic field to contain the information and detecting the information in the modulated field at a distance with a magnetostatic detector that detects the modulated magnetic field containing the information.

  19. When Network Coding improves the Performances of Clustered Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    When Network Coding improves the Performances of Clustered Wireless Networks that significantly increases the performances of clustering algorithms in wireless multi-hop networks-XOR coding; wireless multi-hop networks; clustering I. INTRODUCTION Partitioning nodes

  20. Estimating Wireless Network Properties with Spatial Statistics and Models

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Estimating Wireless Network Properties with Spatial Statistics and Models Janne Riihij statistics and models for different estimation problems related to wireless networks. We focus specifically wireless networks. We provide a concise survey of existing techniques from the spatial statistics

  1. Interference-Aware Fair Rate Control in Wireless Sensor Networks

    E-Print Network [OSTI]

    Rangwala, Sumit; Gummadi, Ramakrishna; Govindan, Ramesh; Psounis, Konstantinos

    2006-01-01T23:59:59.000Z

    Protocol For Wireless Sensor Networks. In WSNA ’02. [30]Congestion in Wireless Sensor Networks. In SenSys ’04. [12]Y. Lei. A Two-Tier Wireless Sensor Network Architecture for

  2. Tracking Multiple Targets Using Binary Decisions from Wireless Sensor Networks

    E-Print Network [OSTI]

    Michailidis, George

    Tracking Multiple Targets Using Binary Decisions from Wireless Sensor Networks Natallia Katenka- tions. 1 #12;Keywords: wireless sensor networks, binary data, target tracking, multiple targets, penal- ized maximum likelihood 1 Introduction and Problem Motivation Wireless Sensor Networks (WSN) have

  3. Data Analysis and Query Processing in Wireless Sensor Networks

    E-Print Network [OSTI]

    Chatzimilioudis, Georgios

    2010-01-01T23:59:59.000Z

    5.2.2 Wireless Sensor Networks . . . . . . . . 5.33.1 De?nition of a Wireless Sensor Network . . . . . . .1.1 Introduction to Wireless Sensor Networks 1.2 Motivating

  4. Wireless Technologies for Structural Wireless Technologies for Structural Health MonitoringHealth Monitoring

    E-Print Network [OSTI]

    Wireless Technologies for Structural Wireless Technologies for Structural Health MonitoringHealth responses · Structural monitoring structural health monitoring: ­ Very few structural "health" monitoring and buildings · Future directions and technology trends Structural Monitoring SystemsStructural Monitoring

  5. Wesleyan Guest Wireless connection procedure. Please follow the procedure below for connecting to the Wesleyan Guest Wireless network.

    E-Print Network [OSTI]

    Devoto, Stephen H.

    for connecting to the Wesleyan Guest Wireless network. Begin by selecting the Wireless icon in the lower rightWesleyan Guest Wireless connection procedure. Windows #12;Please follow the procedure below

  6. Wireless Sensor Network for Advanced Energy Management Solutions

    SciTech Connect (OSTI)

    Peter J. Theisen; Bin Lu, Charles J. Luebke

    2009-09-23T23:59:59.000Z

    Eaton has developed an advanced energy management solution that has been deployed to several Industries of the Future (IoF) sites. This demonstrated energy savings and reduced unscheduled downtime through an improved means for performing predictive diagnostics and energy efficiency estimation. Eaton has developed a suite of online, continuous, and inferential algorithms that utilize motor current signature analysis (MCSA) and motor power signature analysis (MPSA) techniques to detect and predict the health condition and energy usage condition of motors and their connect loads. Eaton has also developed a hardware and software platform that provided a means to develop and test these advanced algorithms in the field. Results from lab validation and field trials have demonstrated that the developed advanced algorithms are able to detect motor and load inefficiency and performance degradation. Eaton investigated the performance of Wireless Sensor Networks (WSN) within various industrial facilities to understand concerns about topology and environmental conditions that have precluded broad adoption by the industry to date. A Wireless Link Assessment System (WLAS), was used to validate wireless performance under a variety of conditions. Results demonstrated that wireless networks can provide adequate performance in most facilities when properly specified and deployed. Customers from various IoF expressed interest in applying wireless more broadly for selected applications, but continue to prefer utilizing existing, wired field bus networks for most sensor based applications that will tie into their existing Computerized Motor Maintenance Systems (CMMS). As a result, wireless technology was de-emphasized within the project, and a greater focus placed on energy efficiency/predictive diagnostics. Commercially available wireless networks were only utilized in field test sites to facilitate collection of motor wellness information, and no wireless sensor network products were developed under this project. As an outgrowth of this program, Eaton developed a patented energy-optimizing drive control technology that is complementary to a traditional variable frequency drives (VFD) to enable significant energy savings for motors with variable torque applications, such as fans, pumps, and compressors. This technology provides an estimated energy saving of 2%-10% depending on the loading condition, in addition to the savings obtained from a traditional VFD. The combination of a VFD with the enhanced energy-optimizing controls will provide significant energy savings (10% to 70% depending on the load and duty cycle) for motors that are presently connected with across the line starters. It will also provide a more favorable return on investment (ROI), thus encouraging industries to adopt VFDs for more motors within their facilities. The patented technology is based on nonintrusive algorithms that estimate the instantaneous operating efficiency and motor speed and provide active energy-optimizing control of a motor, using only existing voltage and current sensors. This technology is currently being commercialized by Eaton’s Industrial Controls Division in their next generation motor control products. Due to the common nonintrusive and inferential nature of various algorithms, this same product can also include motor and equipment condition monitoring features, providing the facility owner additional information to improve process uptime and the associated energy savings. Calculations estimated potential energy savings of 261,397GWh/Yr ($15.7B/yr), through retrofitting energy-optimizing VFDs into existing facilities, and incorporating the solution into building equipment sold by original equipment manufacturers (OEMs) and installed by mechanical and electrical contractors. Utilizing MCSA and MPSA for predictive maintenance (PM) of motors and connected equipment reduces process downtime cost and the cost of wasted energy associated with shutting down and restarting the processes. Estimated savings vary depending on the industry segment and equi

  7. ISA Approves Standard for Wireless Automation in Process Control...

    Energy Savers [EERE]

    ISA Approves Standard for Wireless Automation in Process Control Applications ISA Approves Standard for Wireless Automation in Process Control Applications On September 9, the...

  8. Wireless technology collects real-time information from oil and...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Wireless technology collects real-time information from oil and gas wells Wireless technology collects real-time information from oil and gas wells The patented system delivers...

  9. SoftCast: One Video to Serve All Wireless Receivers

    E-Print Network [OSTI]

    Katabi, Dina

    2009-02-07T23:59:59.000Z

    The main challenge in wireless video multicast is to scalably serve multiple receivers who have different channel characteristics. Current wireless transmission schemes, however, cannot support smooth degradation. Specifically, ...

  10. Power Sources for Wireless Sensor Abstract. Wireless sensor networks are poised to become a very significant

    E-Print Network [OSTI]

    Frechette, Luc G.

    Power Sources for Wireless Sensor Networks Abstract. Wireless sensor networks are poised to become a very significant enabling technology in many sectors. Already a few very low power wireless sensor environment, alternative power sources must be employed. This paper reviews many potential power sources

  11. Magnetic Resonant Wireless Power Delivery for Distributed Sensor and Wireless Systems

    E-Print Network [OSTI]

    Cervesato, Iliano

    Magnetic Resonant Wireless Power Delivery for Distributed Sensor and Wireless Systems Brian J. Lee, Pittsburgh, PA 15213 Abstract-- In this paper we report on a resonant wireless power delivery system using to loads distributed in the system. We experimentally map the power distribution for one and multiple loads

  12. FOR IMMEDIATE RELEASE Project Communication Coordinator

    E-Print Network [OSTI]

    Ickert-Bond, Steffi

    -member teams came from college Process Technology programs to join in this competition, including a team from campus. The Process Technology program teaches operation skills required in industries such as petrochemical, power generation, pharmaceuticals, food & beverage, and related fields. The three

  13. Context-aware computing for wireless networks

    E-Print Network [OSTI]

    Ergüt, Salih

    2010-01-01T23:59:59.000Z

    U.S. Federal Communications Commission (FCC) mandates thatregulated by Federal Communications Commission (FCC) in thein part to Federal Communications Commission’s (FCC) mandate

  14. Cross-Layer Design for Energy-Efficient Secure Multicast Communications in Ad Hoc Networks

    E-Print Network [OSTI]

    Poovendran, Radha

    Cross-Layer Design for Energy-Efficient Secure Multicast Communications in Ad Hoc Networks Loukas, University of Washington, Seattle, WA Abstract-- We consider the problem of secure multicast in an energy network operation in an wireless ad hoc environment. Energy is a physical layer parameter, while security

  15. IEEE Communications Magazine January 2009 970163-6804/09/$25.00 2009 IEEE INTRODUCTION

    E-Print Network [OSTI]

    Pompili, Dario

    data collection, scientific ocean sampling, pollution and environmental monitor- ing, climate recording, and mine reconnaissance. Some of these applications can be supported by underwater acoustic sensor networks viable, real-time communication protocols among underwater devices must be enabled. Wireless acoustic

  16. IEEE Communications Magazine February 2014122 0163-6804/14/$25.00 2014 IEEE INTRODUCTION

    E-Print Network [OSTI]

    Wang, Cheng-Xiang

    critical ele- ment in the global ICT strategy, underpinning many other industries. It is one of the fastest energy consumption. Wire- less system designers have been facing the continuously increasing demand various promising technologies for 5G wireless communication systems, such as massive MIMO, energy

  17. Communication Systems Chair of Communication Systems

    E-Print Network [OSTI]

    Schindelhauer, Christian

    , porn sites, web services, ... :-)) #12;8 | 28 Communication Systems network insecurity Inner and intra

  18. Wireless System Considerations When Implementing NERC Critical...

    Energy Savers [EERE]

    & Publications Recommended Practices Guide For Securing ZigBee Wireless Networks in Process Control System Environments Securing WLANs using 802.11i DOEOE National SCADA...

  19. Wireless Demand Response Controls for HVAC Systems

    E-Print Network [OSTI]

    Federspiel, Clifford

    2010-01-01T23:59:59.000Z

    Response Controls for HVAC Systems Clifford Federspiel,tests. Figure 5: Specific HVAC electric power consumptioncontrol, demand response, HVAC, wireless Executive Summary

  20. Dynamic Wireless Charging of Electric Vehicle Demonstrated at Oak Ridge National Laboratory: Benefit of Electrochemical Capacitor Smoothing

    SciTech Connect (OSTI)

    Miller, John M [ORNL] [ORNL; Onar, Omer C [ORNL] [ORNL; White, Cliff P [ORNL] [ORNL; Campbell, Steven L [ORNL] [ORNL; Coomer, Chester [ORNL] [ORNL; Seiber, Larry Eugene [ORNL] [ORNL

    2014-01-01T23:59:59.000Z

    Abstract Wireless charging of an electric vehicle while in motion presents challenges in terms of low latency communications for roadway coil excitation sequencing, and maintenance of lateral alignment, plus the need for power flow smoothing. This paper summarizes the experimental results on power smoothing of in-motion wireless EV charging performed at Oak Ridge National Laboratory using various combinations of electrochemical capacitors at the grid-side and in-vehicle. Electrochemical capacitors of the symmetric carbon-carbon type from Maxwell Technologies comprised the in-vehicle smoothing of wireless charging current to the EV battery pack. Electro Standards Laboratories fabricated the passive and active parallel lithium-capacitor unit used to smooth grid-side power. Power pulsation reduction was 81% on grid by LiC, and 84% on vehicle for both lithium-capacitor and the carbon ultracapacitors.