Sample records for network commercial wireless

  1. Towards Embedded Wireless-Networked Intelligent Daylighting Systems for Commercial Buildings

    E-Print Network [OSTI]

    Agogino, Alice M.

    Towards Embedded Wireless-Networked Intelligent Daylighting Systems for Commercial Buildings Yao, daylighting systems are not widely used in the commercial office building. Barriers prohibiting adoption) `Smart Dust motes' wireless platforms is explored. Due to their small size, they can be placed directly

  2. 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 ...

  3. Chapters 6 & 8 Wireless Networks

    E-Print Network [OSTI]

    Lu, Enyue "Annie"

    for sending packets between wired network and wireless host(s) in its "area" e.g., cell towers, 802.11 access protocol coordinates link access various data rates, transmission distance Elements of a wireless network

  4. 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...

  5. 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.

  6. Stimulating Cooperative Diversity in Wireless Ad Hoc Networks through Pricing

    E-Print Network [OSTI]

    Adve, Raviraj

    Stimulating Cooperative Diversity in Wireless Ad Hoc Networks through Pricing Naveen Shastry in commercial wireless ad hoc networks. For the relay, cooperation represents both a real cost of energy a pricing game that stimulates cooperation via reimbursements to the relay. Specifically, given the price

  7. 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 ...

  8. Energy efficiency in wireless networks

    E-Print Network [OSTI]

    Jung, Eun-Sun

    2005-11-01T23:59:59.000Z

    technique is to use power saving mode, which allows a node to power off its wireless network interface (or enter a doze state) to reduce energy consumption. The other is to use a technique that suitably varies transmission power to reduce energy consumption...

  9. E-Print Network 3.0 - ad-hoc wireless sensor Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in wireless sensor networks The rapid progress of wireless communication and embedded micro-sensing MEMS... technologies has made wireless sensor networks possible. A wireless...

  10. Monitoring Energy Consumption In Wireless Sensor Networks

    E-Print Network [OSTI]

    Turau, Volker

    Monitoring Energy Consumption In Wireless Sensor Networks Matthias Witt, Christoph Weyer, it may impair the ability of the sensor network to function. Therefore, minimizing energy consumption energy consumption in both standby and active modes is the basis of wireless networks. Energy preserving

  11. a Wireless Sensor Network for Environmental Monitoring

    E-Print Network [OSTI]

    Gburzynski, Pawel

    transmitters #12;Sample sensors: #12;Sample sensors: PAR: Photosynthetically Active (solar) Radiation sensora Wireless Sensor Network for Environmental Monitoring a Wireless Sensor Network for Environmental technology: a truly self configurable, low-cost, maintenance-free, ad-hoc sensor network (not based on Zig

  12. Routing in heterogeneous wireless ad hoc networks

    E-Print Network [OSTI]

    Cheekiralla, Sivaram M. S. L., 1980-

    2008-01-01T23:59:59.000Z

    Wireless ad hoc networks are used in several applications ranging from infrastructure monitoring to providing Internet connectivity to remote locations. A common assumption about these networks is that the devices that ...

  13. Epidemic Propagation In Overlaid Wireless Networks

    SciTech Connect (OSTI)

    Yanmaz, Evsen [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

    Witb tbe emergence of computer worms tbat can spread over air interfaces, wireless ad boc and sensor networks can be vulnerable to node compromises even if the deployed network is not connected to the backbone. Depending on the physical topology of the wireless network, even a single infected node can compromise the whole network. In this work, epidemic (e.g., worm) propagation in a static wireless network is studied, where a number of inCected mobile nodes are injected over the existing network. It is shown that the epidemic spread threshold and size depend on the physical topology of the underlying static wireless network as well as the mobility model employed by the infected mobile nodes. More specifically, results show that in a Cully-connected static wirelessnctwork targeted attacks are more effective, wbereas Cor a random topology random attacks can be sufficient to compromise the whole network.

  14. 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 ...

  15. Wireless Network Capacity Management: A Real Options Approach

    E-Print Network [OSTI]

    Forsyth, Peter A.

    capacity, market price of risk, investment timing option 1 Introduction Wireless networks are now regarded

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

    E-Print Network [OSTI]

    California at Berkeley, University of

    Wireless Sensor Networks (WSN). The project is targeting a deployment on the Golden Gate Bridge. Ambient

  17. 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

  18. Reliability Gain of Network Coding in Lossy Wireless Networks

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Reliability Gain of Network Coding in Lossy Wireless Networks Majid Ghaderi Department of Computer that network coding improves network reliability by reducing the number of packet retransmissions in lossy networks. However, the extent of the reliability benefit of network coding is not known. This paper

  19. E-Print Network 3.0 - adapting wireless technology Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    possible. A wireless sensor network normally comes a large area... in wireless sensor networks The rapid progress of wireless communication and embedded micro-sensing MEMS... ....

  20. A Study of Energy-efficient Routing Supporting Coordinated Sleep Scheduling in Wireless Ad Hoc Networks.

    E-Print Network [OSTI]

    Lou, Chong

    2015-01-01T23:59:59.000Z

    ??A wireless ad hoc network is a collection of wireless computing devices that self-configure to form a network independently of any fixed infrastructure. Many wireless… (more)

  1. Iterative Collision Resolution in Wireless Networks

    E-Print Network [OSTI]

    Stuckman, Katherine Christine

    2013-03-29T23:59:59.000Z

    With the growing popularity of smart phones and tablets, development of multimedia applications is on the rise. Speedy transmission of this massive amount information is already pushing the limits of the capacity of wireless networks...

  2. Interference management in wireless cellular networks 

    E-Print Network [OSTI]

    Burchardt, Harald Peter

    2013-07-01T23:59:59.000Z

    In wireless networks, there is an ever-increasing demand for higher system throughputs, along with growing expectation for all users to be available to multimedia and Internet services. This is especially difficult to ...

  3. 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

  4. Intrusion detection and monitoring for wireless networks.

    SciTech Connect (OSTI)

    Thomas, Eric D.; Van Randwyk, Jamie A.; Lee, Erik J.; Stephano, Amanda (Indiana University); Tabriz, Parisa (University of Illinois at Urbana-Champaign); Pelon, Kristen (Cedarville University); McCoy, Damon (University of Colorado, Boulder); Lodato, Mark (Lafayette College); Hemingway, Franklin (University of New Mexico); Custer, Ryan P.; Averin, Dimitry (Polytechnic University); Franklin, Jason (Carnegie Mellon University); Kilman, Dominique Marie

    2005-11-01T23:59:59.000Z

    Wireless computer networks are increasing exponentially around the world. They are being implemented in both the unlicensed radio frequency (RF) spectrum (IEEE 802.11a/b/g) and the licensed spectrum (e.g., Firetide [1] and Motorola Canopy [2]). Wireless networks operating in the unlicensed spectrum are by far the most popular wireless computer networks in existence. The open (i.e., proprietary) nature of the IEEE 802.11 protocols and the availability of ''free'' RF spectrum have encouraged many producers of enterprise and common off-the-shelf (COTS) computer networking equipment to jump into the wireless arena. Competition between these companies has driven down the price of 802.11 wireless networking equipment and has improved user experiences with such equipment. The end result has been an increased adoption of the equipment by businesses and consumers, the establishment of the Wi-Fi Alliance [3], and widespread use of the Alliance's ''Wi-Fi'' moniker to describe these networks. Consumers use 802.11 equipment at home to reduce the burden of running wires in existing construction, facilitate the sharing of broadband Internet services with roommates or neighbors, and increase their range of ''connectedness''. Private businesses and government entities (at all levels) are deploying wireless networks to reduce wiring costs, increase employee mobility, enable non-employees to access the Internet, and create an added revenue stream to their existing business models (coffee houses, airports, hotels, etc.). Municipalities (Philadelphia; San Francisco; Grand Haven, MI) are deploying wireless networks so they can bring broadband Internet access to places lacking such access; offer limited-speed broadband access to impoverished communities; offer broadband in places, such as marinas and state parks, that are passed over by traditional broadband providers; and provide themselves with higher quality, more complete network coverage for use by emergency responders and other municipal agencies. In short, these Wi-Fi networks are being deployed everywhere. Much thought has been and is being put into evaluating cost-benefit analyses of wired vs. wireless networks and issues such as how to effectively cover an office building or municipality, how to efficiently manage a large network of wireless access points (APs), and how to save money by replacing an Internet service provider (ISP) with 802.11 technology. In comparison, very little thought and money are being focused on wireless security and monitoring for security purposes.

  5. Implementing a wireless base station for a sensor network

    E-Print Network [OSTI]

    Song, Heewon, 1977-

    2004-01-01T23:59:59.000Z

    Using wireless sensor networks for monitoring infrastructure is a new trend in civil engineering. Compared with traditional ways to monitor infrastructure, wireless sensor networks are cheap, safe, and compact. However, ...

  6. Direct Information Exchange in Wireless Networks: A Coding Perspective

    E-Print Network [OSTI]

    Ozgul, Damla

    2011-10-21T23:59:59.000Z

    the problem and reduce the stress on the wireless networks. One strategy to reduce the strain on the wireless networks is to utilize cooperative communication. The purpose of this thesis is to provide more efficient and reliable solutions for direct...

  7. Power Control and Transmission Scheduling for Network Utility Maximization in Wireless Networks

    E-Print Network [OSTI]

    Sharma, Vinod

    Power Control and Transmission Scheduling for Network Utility Maximization in Wireless Networks Min power control and transmis- sion scheduling problem in wireless networks with average power constraints. Index Terms--Network utility maximization, power control, transmission scheduling, column generation I

  8. Efficient Hybrid Key Agreement Protocol for Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Wang, Yu

    Efficient Hybrid Key Agreement Protocol for Wireless Ad Hoc Networks Xiang-Yang Li Yu Wang Ophir important aspects in ad-hoc wireless networks. To ensure the security, several cryptography protocols must efficient when applied to wireless ad-hoc networks. In this paper, we propose a key agreement protocol

  9. Topology Reconstruction and Characterisation of Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Roughan, Matthew

    Topology Reconstruction and Characterisation of Wireless Ad Hoc Networks Jon Arnold, Nigel Bean.sorell@adelaide.edu.au Abstract-- Wireless ad hoc networks provide a useful commu- nications infrastructure for the mobile Hoc Protocols, 802.11, Monitoring, Template Fitting, NS-2. I. INTRODUCTION Wireless Ad Hoc Networks

  10. Software Update Recovery for Wireless Sensor Networks

    E-Print Network [OSTI]

    Sreenan, Cormac J.

    mechanism that uses loss-of- control to provide high-reliability, low energy, software updates, includingSoftware Update Recovery for Wireless Sensor Networks Stephen Brown1 and Cormac J. Sreenan2 1 Laboratory, University College Cork, Ireland Abstract. Updating software over the network is important

  11. 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.

  12. 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

  13. Secure and efficient wireless networks

    E-Print Network [OSTI]

    Bellardo, John Michael

    2006-01-01T23:59:59.000Z

    CA Systems and Network Administrator California Integrationgives the campus network administrators complete admissionin engineered networks, enterprise administrators try to

  14. 1st Workshop on Dependability Issues in Wireless Ad Hoc Networks and Sensor Networks (DIWANS'04), Florence, Italy, Fault Tolerant Communication Topologies for Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    1st Workshop on Dependability Issues in Wireless Ad Hoc Networks and Sensor Networks (DIWANS'04), Florence, Italy, June 2004 Fault Tolerant Communication Topologies for Wireless Ad Hoc Networks Bernd, distributed algorithms, failure locality 1 Introduction Wireless sensor networks, mobile ad hoc networks

  15. ENERGY EFFICIENCY AND SECURITY FOR MULTIHOP WIRELESS NETWORKS

    E-Print Network [OSTI]

    Vaidya, Nitin

    ENERGY EFFICIENCY AND SECURITY FOR MULTIHOP WIRELESS NETWORKS BY MATTHEW JEFFERSON MILLER B over wireless channels demands confidentiality and integrity. In the energy efficiency domain that marginal gains in battery energy density necessitate energy efficient protocols. In the security realm

  16. Survivability Considerations in Wireless Networks

    E-Print Network [OSTI]

    Ning, Jianxia

    2012-01-01T23:59:59.000Z

    pre-configured by the network administrator, otherwise thedetermined by the network administrator according to if thebut also allow a network administrator to determine the

  17. Radioactive Target Detection Using Wireless Sensor Network

    E-Print Network [OSTI]

    Zhang, Tonglin

    . By using the physical law for nuclear radiation isotopes, this chapter proposes a statistical method for wireless sensor network data to detect and locate a hidden nuclear target in a large study area. The method shown that the proposed method is effective and efficient in detection and location of the nuclear

  18. 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

  19. NeuDetect: A Neural Network Data Mining Wireless Network Intrusion Detection System

    E-Print Network [OSTI]

    Ezeife, Christie

    NeuDetect: A Neural Network Data Mining Wireless Network Intrusion Detection System C.I. Ezeife wireless intrusion detection systems, this paper presents a method of applying artificial neural networks mining clas- sification technique to wireless network intrusion detection system. The proposed system

  20. Deadline-aware Broadcasting in Wireless Networks with Network Coding

    E-Print Network [OSTI]

    Wu, Jie

    on time. Index Terms--Broadcasting, broadcast tree, network coding, energy efficiency, deadline, NP 19122 Department of Electrical & Computer Engineering, New Jersey Institute of Technology, Newark, NJ of transmissions, which improves the energy efficiency of wireless networks. On the other hand, delaying

  1. Wireless Network Interface Energy Conservation for Bottlenecked First Mile Networks

    E-Print Network [OSTI]

    Chandra, Surendar

    user using the limited upstream capacity of the home broad- band link. We analyze the behavior of two- posed by this behavior on a client side energy saving mechanism. We also describe techniques that allowWireless Network Interface Energy Conservation for Bottlenecked First Mile Networks Surendar

  2. 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

  3. ABHINAV MURALI ACES-205,Multimedia Wireless Networks Lab

    E-Print Network [OSTI]

    Jagannatham, Aditya K.

    (GSM) networks Linearly Polarized Micro strip Stacked Patch Antenna for GPS · Designed and fabricated a linearlyABHINAV MURALI ACES-205,Multimedia Wireless Networks Lab Department of Electrical Engineering) EXPERIENCE Multimedia Wireless Networks Lab, IIT Kanpur July,2012 - Present Project Associate · Currently

  4. Demo Abstract: Building Energy Management Systems Actuated Using Wireless Camera Sensor Networks

    E-Print Network [OSTI]

    Cerpa, Alberto E.

    Demo Abstract: Building Energy Management Systems Actuated Using Wireless Camera Sensor Networks for approximately 60% of the energy con- sumption within buildings [4]. The conditioning of these ar- eas, however, conditioning (HVAC) sys- tems in residential and commercial buildings account for 50% of the total building

  5. 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

  6. Planning Wireless Networks with Demand Uncertainty using Robust ...

    E-Print Network [OSTI]

    2011-03-04T23:59:59.000Z

    Abstract An optimal planning of future wireless networks is fundamental to satisfy rising traffic ..... COST 231. Urban micro cell measurements and building data.

  7. Investigating the Energy Consumption of a Wireless Network Interface in an Ad Hoc Networking

    E-Print Network [OSTI]

    Sirer, Emin Gun

    Investigating the Energy Consumption of a Wireless Network Interface in an Ad Hoc Networking protocols re- quires knowledge of the energy consumption behavior of actual wireless interfaces. But little practical information is available about the energy consumption behavior of well-known wireless network

  8. Mobility in Wireless Sensor Networks

    E-Print Network [OSTI]

    Mehta, Ankur Mukesh

    2012-01-01T23:59:59.000Z

    A MAV D C ADV E D Micro Air Vehicle Network Manager C B D CA B A F A D B A E Micro Air Vehicle Network Manager C B MAV

  9. 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

  10. Mobility in Wireless Sensor Networks

    E-Print Network [OSTI]

    Mehta, Ankur Mukesh

    2012-01-01T23:59:59.000Z

    42.3 (Mar. 2004). [4] Arduino. http://www.arduino.cc/. [5]Wii Remote IR Camera Hack with Arduino Interface. http://and commercial revisions. The Arduino platform [4] is an

  11. Explicit congestion indication for TCP over wireless networks

    E-Print Network [OSTI]

    Shishir

    2012-06-07T23:59:59.000Z

    Transmission control protocol (TCP), the widely used transport protocol in the Internet, assumes that packet losses are because of congestion. Wireless networks have higher error rates than wired networks; TCP misinterprets the error losses...

  12. Security Schemes for Wireless Sensor Networks with Mobile Sink

    E-Print Network [OSTI]

    Rasheed, Amar Adnan

    2011-08-08T23:59:59.000Z

    ........................ 35 10 Wireless sensor network with mobile sinks and sensor nodes using two separate key pools for key pre-distribution ......................................... 39 11 (a) Direct key discovery, (b) Indirect key discovery through interrmedi... Protocol parameter values .......................................................................... 108 1 CHAPTER I INTRODUCTION Mobility is exploited in the field of wireless sensor network [1], [2], [3], [4] to circum- vent multi...

  13. Approximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Liang, Weifa

    and a set of destination nodes, the problem is to build a minimum-energy multicast tree for the requestApproximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks Weifa Liang, Senior Member, IEEE Abstract--A wireless ad hoc network consists of mobile nodes that are equipped with energy

  14. Power Management for Wireless Sensor Networks Based on Energy Budgets

    E-Print Network [OSTI]

    Turau, Volker

    Power Management for Wireless Sensor Networks Based on Energy Budgets Christian Renner Institute with wireless sensor networks powered by energy-harvesting supplies. We introduce the concept of an energy budget, the amount of energy available to a sensor node for a given period of time. The presented tools

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

    E-Print Network [OSTI]

    Heys, Howard

    Energy Efficiency of Encryption Schemes Applied to Wireless Sensor Networks Xueying Zhang, Howard M (ICC 2010), Cape Town, South Africa, May 2010, and "Energy Efficiency of Symmetric Key Cryptographic In this paper, we focus on the energy efficiency of secure communication in wireless sensor networks (WSNs). Our

  16. Energy-Efficient Capacity Optimization in Wireless Networks

    E-Print Network [OSTI]

    Wang, Yu

    Energy-Efficient Capacity Optimization in Wireless Networks Lu Liu, Xianghui Cao, Yu Cheng, Lili Du capacity in the most energy-efficient manner over a general large-scale wireless network, say, a multi numerical results demonstrate the energy efficiency improvement by the proposed energy-efficient

  17. Network Electricity Use Associated with Wireless Personal Digital Assistants

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Network Electricity Use Associated with Wireless Personal Digital Assistants Jonathan Koomey1 the widely cited claim that the network electricity use associated with a wireless personal digital assistant PDA is equal to the electricity consumed by a refrigerator. It compiles estimates of the data flows

  18. Dynamic Resource Provisioning for Energy Efficiency in Wireless Access Networks

    E-Print Network [OSTI]

    Wichmann, Felix

    of controlling how much of the network infrastructure is actually needed and which parts can be temporarily. Considering that most of the energy in wireless access networks is consumed in the radio part, a dynamic the two most common wireless access technologies, namely cellular and WLAN. Main features of the proposed

  19. Introduction to Ad hoc Networks CS-647: Advanced Topics in Wireless Networks

    E-Print Network [OSTI]

    Amir, Yair

    1-1 Introduction to Ad hoc Networks CS-647: Advanced Topics in Wireless Networks Drs. Baruch Awerbuch 2008 #12;1-2 Outline What is an ad hoc network? Challenges facing ad hoc networks History of Ad C. K. Toh, Chapter 3, "Ad Hoc Wireless Networks", Prentice Hall, 2002 D. P. Agrawal and Qing

  20. 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.

    Commercial Mobile Alerting System (CMAS) CMAS is the system interface to the Wireless Emergency Presidential, AMBER, and Imminent Threat alerts to mobile phones using cell broadcast technology mobile devices with CMAS/WEA capability included. While not all handsets now on the market are capable

  1. 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)

  2. Improving performance of transmission control protocol (TCP) over mobile wireless networks

    E-Print Network [OSTI]

    Bakshi, Bikram Singh

    1996-01-01T23:59:59.000Z

    ) August 1996 Major Subject: Computer Science ABSTRACT Improving Performance of Transmission Control Protocol (TCP) over Mobile Wireless Networks. (August 1996) Bikram Singli Balrshi, B. Tech. , Delhi Institute of Technology Chair of Advisory.... Explicit Bad State Notification (EBSN) . d. EBSN in Local-Area Wireless Networks . D. Results and Discussion 1. Wide-Area Wireless Networks . 2. Local-Area Wireless Networks SEAMLESS COMMUNICATION IN MOBILE WIRELESS NETWORKS A. Summary of Previous...

  3. On the Access Pricing and Network Scaling Issues of Wireless Mesh Networks

    E-Print Network [OSTI]

    Lui, John C.S.

    1 On the Access Pricing and Network Scaling Issues of Wireless Mesh Networks Ray K. Lam Dah. This paper studies the use of pricing as an incentive mechanism to stimulate participation and collaboration in public wireless mesh networks. Our focus is on the "economic behavior" of the network nodes-- the pricing

  4. Solar-aware Routing in Wireless Sensor Networks

    E-Print Network [OSTI]

    Solar-aware Routing in Wireless Sensor Networks Thiemo Voigt, Hartmut Ritter and Jochen Schiller energy sources such as solar power may provide unlimited energy resources to a changing subset these nodes is appealing. In this paper, we present solar-aware routing, a rout- ing protocol for wireless

  5. Dynamic Malware Attack in Energy-Constrained Mobile Wireless Networks

    E-Print Network [OSTI]

    Sarkar, Saswati

    Dynamic Malware Attack in Energy-Constrained Mobile Wireless Networks M.H.R. Khouzani, Saswati Sarkar Abstract Large scale proliferation of wireless technologies are dependent on developing reliable to the spread of self-replicating malicious codes known as malware. The malware can be used to initiate

  6. 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

  7. Multihop Wireless Networks: What's Wrong With Min Hopcount?

    E-Print Network [OSTI]

    is bimodal ­ Links are either "good", or "bad" · All "good" links are equivalent ­ Sufficient condition for success · What about wireless? #12;Indoor Wireless Network 5th floor 6th floor 802.11b radios (fixed tx

  8. Handover Performance of HVAC Duct Based Indoor Wireless Networks

    E-Print Network [OSTI]

    Stancil, Daniel D.

    Handover Performance of HVAC Duct Based Indoor Wireless Networks A. E. Xhafa, P. Sonthikorn, and O in indoor wireless net- works (IWN) that use heating, ventilation, and air conditioning (HVAC) ducts.e., new call blocking and handover dropping probabilities, of an IWN that uses HVAC ducts are up to 6

  9. 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

  10. Syncob: Collaborative Time Synchronization in Wireless Sensor Networks

    E-Print Network [OSTI]

    Beigl, Michael

    an independent power sup- ply like a battery and use methods of energy harvesting like solar cells. To control the limited energy resources efficiently, wireless sensor networks typically undergo pe- riodic sleep-cycles to save energy. To collaborate for a common application, wireless sensor nodes have to be pre- cisely

  11. A Taxonomy of Wireless Micro-Sensor Network Models Sameer Tilak Nael B. Abu-Ghazaleh Wendi Heinzelman

    E-Print Network [OSTI]

    Han, Richard Y.

    A Taxonomy of Wireless Micro-Sensor Network Models ÂŁ Sameer Tilak Nael B. Abu-Ghazaleh Wendi wireless networks. This paper examines this emerging field to clas- sify wireless micro-sensor networks to classify wireless micro-sensor networks. In partic- ular, we classify the aspects of wireless micro

  12. Passive Loss Inference in Wireless Sensor Networks Based on Network Coding

    E-Print Network [OSTI]

    Li, Baochun

    Passive Loss Inference in Wireless Sensor Networks Based on Network Coding Yunfeng Lin, Ben Liang, Baochun Li Department of Electrical and Computer Engineering University of Toronto {ylin, bli it desirable to monitor link loss rates in wireless sensor networks. In this paper, we study the loss inference

  13. Wireless Sensor Network for Monitoring of Historic Structures under Rehabilitation

    E-Print Network [OSTI]

    Samuels, Julie Marie

    2012-02-14T23:59:59.000Z

    The use of a wireless sensor network (WSN) to monitor an historic structure under rehabilitation is the focus of this research. To thoroughly investigate the issue, two main objectives are addressed: the development of a reliable WSN tailored...

  14. Challenges and Solutions for Intrusion Detection in Wireless Mesh Networks

    E-Print Network [OSTI]

    Hassanzadeh, Amin

    2014-05-03T23:59:59.000Z

    The problem of intrusion detection in wireless mesh networks (WMN) is challenging, primarily because of lack of single vantage points where traffic can be analyzed and the limited resources available to participating nodes. Although the problem has...

  15. Self-configuration, -optimisation and -healing in wireless networks

    E-Print Network [OSTI]

    into wireless access networks are (i) to effectuate substantial operational and capital expenditure (O/CAPEX and illustrates the expected gains in terms of O/CAPEX reductions and perform- ance enhancement. An overview

  16. Municipal wireless mesh networks as a competitive broadband delivery platform

    E-Print Network [OSTI]

    Hassan-Ali, Mudhafar

    2007-01-01T23:59:59.000Z

    Recently there has been a growing interest in deploying Wireless Mesh Networks by municipalities. This interest stems from the desire to provide broadband connectivity to users lacking access to broadband alternatives. The ...

  17. Integration of wireless sensor networks in environmental monitoring cyber infrastructure

    E-Print Network [OSTI]

    Huang, Yan

    Integration of wireless sensor networks in environmental monitoring cyber infrastructure Jue Yang Ă? to revolutionize many science and engineering domains. We present a novel environmental monitoring system collection, management, visualization, dissemination, and exchange, conforming to the new Sensor Web

  18. SBA: A Simple Backoff Algorithm for Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    SBA: A Simple Backoff Algorithm for Wireless Ad Hoc Networks Tahiry RAZAFINDRALAMBO1 and Isabelle of ad hoc networks based on IEEE 802.11 DCF degrade when congestion increases. The issues concern SBA with IEEE 802.11 and several alternatives to 802.11 in ad hoc networks. We show that SBA achieves

  19. Energy-Conservation Clustering Protocol based on Heat Conductivity for Wireless Sensor Networks

    E-Print Network [OSTI]

    Landfeldt, Bjorn

    -sensors based on MEMS (Micro-Electro-Mechanical Systems) technology. A wireless sensor network is composedEnergy-Conservation Clustering Protocol based on Heat Conductivity for Wireless Sensor Networks critical issues in wireless sensor networks is energy efficiency because of the limited energy network

  20. Energy Efficiency of Symmetric Key Cryptographic Algorithms in Wireless Sensor Networks

    E-Print Network [OSTI]

    Heys, Howard

    Energy Efficiency of Symmetric Key Cryptographic Algorithms in Wireless Sensor Networks Xueying-- In this paper, we examine the energy efficiency of symmetric key cryptographic algorithms applied in wireless energy efficiency with a level of security suitable for wireless sensor networks. Keywords - wireless

  1. A simulation model for the lifetime of wireless sensor networks

    E-Print Network [OSTI]

    Elleithy, Abdelrahman

    2012-01-01T23:59:59.000Z

    In this paper we present a model for the lifetime of wireless sensor networks. The model takes into consideration several parameters such as the total number of sensors, network size, percentage of sink nodes, location of sensors, the mobility of sensors, and power consumption. A definition of the life time of the network based on three different criteria is introduced; percentage of available power to total power, percentage of alive sensors to total sensors, and percentage of alive sink sensors to total sink sensors. A Matlab based simulator is developed for the introduced model. A number of wireless sensor networks scenarios are presented and discussed.

  2. Delay Analysis of Maximum Weight Scheduling in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Modiano, Eytan H.

    This paper studies delay properties of the well-known maximum weight scheduling algorithm in wireless ad hoc networks. We consider wireless networks with either one-hop or multihop flows. Specifically, this paper shows ...

  3. E-Print Network 3.0 - airborne emergency wireless Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    networks. The main source of diversity is the existence of multiple paths in wireless networks... decided to use the gap model proposed in 13 to model the airborne wireless...

  4. Achieving Queue-Length Stability Through Maximal Scheduling in Wireless Networks

    E-Print Network [OSTI]

    Sarkar, Saswati

    stability region; however, these scheduling strategies also require centralized control. Although [5], [6Achieving Queue-Length Stability Through Maximal Scheduling in Wireless Networks Prasanna Chaporkar through distributed scheduling in wireless networks. We consider a simple, local information based

  5. Addressing the Energy-Delay Tradeoff in Wireless Networks with Load-Proportional Energy Usage

    E-Print Network [OSTI]

    Sikdar, Biplab

    . The protocol aspects of the energy efficient design of wireless networks focuses on a number of topics

  6. 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.

  7. 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 ...

  8. E-Print Network 3.0 - ad-hoc wireless networks Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    networks Search Powered by Explorit Topic List Advanced Search Sample search results for: ad-hoc wireless networks Page: << < 1 2 3 4 5 > >> 1 Sum-of-Sinusoid channel models for...

  9. Report on a Working Session on Security in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    Report on a Working Session on Security in Wireless Ad Hoc Networks Levente Butty´an Jean organized a working session de- voted to the topic of security in wireless ad hoc networks. This event took setting. Securing wireless ad hoc networks is particularly diffi- cult for many reasons including

  10. A New MAC Scheme Supporting Voice/Data Traffic in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Jiang, Hai

    A New MAC Scheme Supporting Voice/Data Traffic in Wireless Ad Hoc Networks Ping Wang, Member, IEEE, Hai Jiang, Member, IEEE, and Weihua Zhuang, Fellow, IEEE Abstract--In wireless ad hoc networks information exchanges among the nodes. Index Terms--Wireless ad hoc networks, medium access control, fairness

  11. Topology Control for Fault-Tolerant Communication in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Topology Control for Fault-Tolerant Communication in Wireless Ad Hoc Networks Bernd Thallner-generation wireless ad hoc networks, which are increasingly being considered also for critical application domains in a fully distributed ("ad hoc") manner. Increasingly, wireless ad hoc networks are also being considered

  12. Using Micro-Genetic Algorithms to Improve Localization in Wireless Sensor Networks

    E-Print Network [OSTI]

    Tam, Vincent W. L.

    Using Micro-Genetic Algorithms to Improve Localization in Wireless Sensor Networks Vincent Tam methods, micro- genetic algorithms, distance measures. I. INTRODUCTION A wireless sensor network of Hong Kong, Hong Kong. Email: {vtam, kycheng, kslui}@eee.hku.hk Abstract-- Wireless sensor networks

  13. Time Synchronization in Hierarchical TESLA Wireless Sensor Networks

    SciTech Connect (OSTI)

    Jason L. Wright; Milos Manic

    2009-08-01T23:59:59.000Z

    Time synchronization and event time correlation are important in wireless sensor networks. In particular, time is used to create a sequence events or time line to answer questions of cause and effect. Time is also used as a basis for determining the freshness of received packets and the validity of cryptographic certificates. This paper presents secure method of time synchronization and event time correlation for TESLA-based hierarchical wireless sensor networks. The method demonstrates that events in a TESLA network can be accurately timestamped by adding only a few pieces of data to the existing protocol.

  14. Robust message routing for mobile (wireless) ad hoc networks.

    SciTech Connect (OSTI)

    Goldsby, Michael E.; Johnson, Michael M.; Kilman, Dominique Marie (Sandia National Laboratories, Albuquerque, NM); Bierbaum, Neal Robert; Chen, Helen Y.; Ammerlahn, Heidi R.; Tsang, Rose P.; Nicol, David M. (University of Illinois, Urbana, IL)

    2004-01-01T23:59:59.000Z

    This report describes the results of research targeting improvements in the robustness of message transport in wireless ad hoc networks. The first section of the report provides an analysis of throughput and latency in the wireless medium access control (MAC) layer and relates the analysis to the commonly used 802.11 protocol. The second section describes enhancements made to several existing models of wireless MAC and ad hoc routing protocols; the models were used in support of the work described in the following section. The third section of the report presents a lightweight transport layer protocol that is superior to TCP for use in wireless networks. In addition, it introduces techniques that improve the performance of any ad hoc source routing protocol. The fourth section presents a novel, highly scalable ad hoc routing protocol that is based on geographic principles but requires no localization hardware.

  15. Energy Efficient Multi-mode Operation for Networked Wireless Sensors

    E-Print Network [OSTI]

    Jay Yang, Shanchieh

    Energy Efficient Multi-mode Operation for Networked Wireless Sensors Shanchieh Jay Yang, Niranjan Krishnamurthi, Cory D. Cress and Moises Sudit Rochester Institute of Technology, Rochester, NY 14623 Abstract of research work, ranging from device en- gineering to network protocol design, have been initiated to address

  16. An Energy-efficient Wireless Sensor Network for Precision Agriculture

    E-Print Network [OSTI]

    Kumar, Ratnesh

    of the application (periodic collection of sensor- data and energy efficiency). Soil monitoring application doesAn Energy-efficient Wireless Sensor Network for Precision Agriculture Herman Sahota Ratnesh Kumar layer is designed to save energy during the wake-up synchronization phase. The network layer is designed

  17. Localized Minimum-Energy Broadcasting for Wireless Multihop Networks

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    tree. We then observe that, for very dense networks, it is more energy-efficient to reach more than oneLocalized Minimum-Energy Broadcasting for Wireless Multihop Networks with Directional Antennas, and Carmen M. Yago Abstract--There are a number of proposals to achieve energy-efficient broadcasting

  18. Energy Efficient Broadcast Routing in Static Ad Hoc Wireless Networks

    E-Print Network [OSTI]

    Jia, Xiaohua

    such that the energy cost of the broadcast tree is minimized. Each node in the network is assumed to have a fixed level a broadcast tree such that the energy cost of the broadcast tree is minimized. We first prove that the problemEnergy Efficient Broadcast Routing in Static Ad Hoc Wireless Networks Deying Li, Xiaohua Jia

  19. Attack-Resilient Time Synchronization for Wireless Sensor Networks

    E-Print Network [OSTI]

    Yener, Aylin

    Attack-Resilient Time Synchronization for Wireless Sensor Networks Hui Song, Sencun Zhu in sensor networks were not designed with security in mind, thus leaving them vulnerable to security attacks. In this paper, we first identify various attacks that are effective to several representative time

  20. Residual Energy-Aware Cooperative Transmission (REACT) in Wireless Networks

    E-Print Network [OSTI]

    Leung, Kin K.

    Residual Energy-Aware Cooperative Transmission (REACT) in Wireless Networks Erwu Liu, Qinqing Zhang the lifetime of the network and we call the selection method a residual energy-aware cooperative transmission- works, where energy efficiency is a critical design consideration. We assume that multiple relay nodes

  1. Directed Budget-Based Clustering for Wireless Sensor Networks

    E-Print Network [OSTI]

    Stavrakakis, Ioannis

    Directed Budget-Based Clustering for Wireless Sensor Networks Leonidas Tzevelekas National, distributed and energy efficient network self- organization. Budget-based clustering approaches have recently been proposed for this purpose, by specifying rules for distribut- ing a given budget of tokens

  2. Invited Paper: Wireless Sensor Networks for Ecosystem Monitoring & Port Surveillance

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Invited Paper: Wireless Sensor Networks for Ecosystem Monitoring & Port Surveillance A. Mansour*1 of the most up-to-date innovations in sensor technology and sensor networks, our current project should as well as the second phase of the project which consists in analyzing living underwater micro

  3. Resource management in heterogeneous wireless sensor networks

    E-Print Network [OSTI]

    Regini, Edoardo

    2009-01-01T23:59:59.000Z

    A. , 2002: Joint scheduling and power control for wirelesstransmit power control while scheduling wireless nodes ina control packet which contains the scheduling information

  4. A Wireless Sensor Network Air Pollution Monitoring System

    E-Print Network [OSTI]

    Khedo, Kavi K; Mungur, Avinash; Mauritius, University of; Mauritius,; 10.5121/ijwmn.2010.2203

    2010-01-01T23:59:59.000Z

    Sensor networks are currently an active research area mainly due to the potential of their applications. In this paper we investigate the use of Wireless Sensor Networks (WSN) for air pollution monitoring in Mauritius. With the fast growing industrial activities on the island, the problem of air pollution is becoming a major concern for the health of the population. We proposed an innovative system named Wireless Sensor Network Air Pollution Monitoring System (WAPMS) to monitor air pollution in Mauritius through the use of wireless sensors deployed in huge numbers around the island. The proposed system makes use of an Air Quality Index (AQI) which is presently not available in Mauritius. In order to improve the efficiency of WAPMS, we have designed and implemented a new data aggregation algorithm named Recursive Converging Quartiles (RCQ). The algorithm is used to merge data to eliminate duplicates, filter out invalid readings and summarise them into a simpler form which significantly reduce the amount of dat...

  5. Bells and Whistles, or Just Plain Effective? The New Generation of Wireless Controls in Existing Commercial Buildings.

    E-Print Network [OSTI]

    LaFlamme, S.

    2013-01-01T23:59:59.000Z

    Wireless controls are a key feature for improving the energy efficiency of existing commercial buildings. But what impact do they really have on building performance? This paper provides three case studies to explore the costs, benefits...

  6. Protecting a University's Wireless Data Network with the WPA and VPN Security Solutions

    E-Print Network [OSTI]

    Saksupakul, Rattanachai

    2007-05-18T23:59:59.000Z

    .11i standard as a security solution will require a major change in the wireless network elements and wireless terminals due to the cryptographic overhead of AES. Gast, M. S. (2002). 802.11 Wireless Networks: The Definitive Guide. Sebastopol, CA..., IN: Cisco Press. Gast, M. S. (2002). 802.11 Wireless Networks: The Definitive Guide. Sebastopol, CA: O?Reilly & Associates, Inc. Gordon, L. A., Loeb, M. P., Lucyshyn, W., & Richardson, R. (2006). CSI/FBI Computer Crime and Security Survey...

  7. Wireless Sensor Networks Lecture 1: Introduction

    E-Print Network [OSTI]

    Maróti, Miklós

    Ptr, Vanderbilt #12;2009 ­© Matt Welsh Harvard University 10 Solar panels for charging car battery (used by Free Harvard University 4 Wireless Technologies Comparison Data rate Complexity/power/cost CC1000 Bluetooth 802 University 5 Wireless Technologies Comparison Type Data rate Transmit pwr Range (approx) Cost 802.11b 11

  8. Identifying Pollution Attackers in Network-Coding Enabled Wireless Mesh Networks

    E-Print Network [OSTI]

    Lui, John C.S.

    Identifying Pollution Attackers in Network-Coding Enabled Wireless Mesh Networks Yongkun Li: cslui@cse.cuhk.edu.hk Abstract--Pollution attack is a severe security problem in network-coding enabled spreading of polluted packets to deplete network resources. We address this security problem even when

  9. Bounds on the Gain of Network Coding and Broadcasting in Wireless Networks

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    1 Bounds on the Gain of Network Coding and Broadcasting in Wireless Networks Junning Liu , Dennis the possibility of network coding and broadcasting in their model, and recent work has suggested network coding and broadcasting in a )10 random topology that the throughput scales as ¥§¦¨¤©2

  10. Clique-Based Randomized Multiple Access for Energy-Efficient Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Clique-Based Randomized Multiple Access for Energy-Efficient Wireless Ad Hoc Networks Paul G protocol design for wireless ad hoc networks is between proactive and reactive coor- dination, where describe Clique-Based Randomized Multiple Access (CRMA), a distributed MAC protocol for wireless ad hoc

  11. AN ASYMPTOTICALLY OPTIMAL APPROACH TO THE DISTRIBUTED ADAPTIVE TRANSMIT BEAMFORMING IN WIRELESS SENSOR NETWORKS

    E-Print Network [OSTI]

    Beigl, Michael

    the plants on a field. As the transmission power of each single node is too weak to reach the distant]. A solution to synchronize carrier signals of distributed wireless nodes is virtual/cooperative MIMO for wireless sen- sor networks [1, 2, 3]. In virtual MIMO for wireless sensor networks, single antenna nodes

  12. Energy-aware Broadcasting in Wireless Networks Ioannis Papadimitriou, Leonidas Georgiadis

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Energy-aware Broadcasting in Wireless Networks Ioannis Papadimitriou, Leonidas Georgiadis Abstract a wireless network [1]. In this paper we address the problem of energy-aware broadcasting in wireless use batteries and, hence, it is im- portant to conserve energy individually, so that they remain op

  13. 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.

  14. -MAC: An Energy-Efficient Medium Access Control for Wireless Sensor Networks

    E-Print Network [OSTI]

    Roedig, Utz

    -MAC: An Energy-Efficient Medium Access Control for Wireless Sensor Networks Andre Barroso, Utz: ¡ a.barroso u.roedig c.sreenan¢ @cs.ucc.ie Abstract-- For the long-term deployment of wireless sensor

  15. Optimally Increasing Secure Connectivity in Multi-hop Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Bystroff, Chris

    1 Optimally Increasing Secure Connectivity in Multi-hop Wireless Ad Hoc Networks Seyit Ahmet--We consider the problem of how to maximize secure connectivity of multi-hop wireless ad hoc networks after, integrity and confidentiality in multi-hop wire- less ad hoc networks. An example of such networks are multi

  16. A Taxonomy of Wireless Micro-Sensor Network Models Sameer Tilak

    E-Print Network [OSTI]

    Abu-Ghazaleh, Nael B.

    A Taxonomy of Wireless Micro-Sensor Network Models Sameer Tilak ¡ , Nael B. Abu this emerging field to classify wireless micro-sensor networks accord- ing to different communication functions networks with differing requirements. We believe that a better understanding of micro-sensor network re

  17. On the Reliability of Wireless Sensor Networks Communications

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    On the Reliability of Wireless Sensor Networks Communications Alexandre Mouradian and Isabelle Aug applications, which must meet time and reliability requirements. Works on the real-time ca- pability of WSNs have been proposed [1]. In this paper we propose to study the achievable reliability of WSNs, tacking

  18. VEHICLE TRACKING USING MOBILE WIRELESS SENSOR NETWORKS DURING DYNAMIC LOAD

    E-Print Network [OSTI]

    Lynch, Jerome P.

    and put into service, engineers lack cost-effective methods for measuring the actual loads imposedVEHICLE TRACKING USING MOBILE WIRELESS SENSOR NETWORKS DURING DYNAMIC LOAD TESTING OF HIGHWAY in the understanding of vehicle-bridge interactions. Direct measurement of the complex coupling that naturally exists

  19. Minimum-Hot-Spot Query Trees for Wireless Sensor Networks

    E-Print Network [OSTI]

    Zeinalipour, Demetris

    an energy- efficient query routing tree. (a) Energy harvesting for battery- less nodes for the (b) Voltree to the querying node. Energy-efficient query routing trees are needed in a plethora of systems such as PeopleMinimum-Hot-Spot Query Trees for Wireless Sensor Networks Georgios Chatzimilioudis Dept

  20. Optimal Routing and Scheduling in Multihop Wireless Renewable Energy Networks

    E-Print Network [OSTI]

    Sarkar, Saswati

    and networks that are powered by renewable energy sources like solar, wind, vibration etc. In fact, multi- ple to solar panels. In addition to solar, energy harvested from the wind through the use of micro-turbines [3 for powering wireless nodes in the near future. Use of renewable energy has advantages in terms of operation

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

    E-Print Network [OSTI]

    Rowe, Neil C.

    and communication areas. Energy-efficient communication is an important issue in WSNs because of the limited power distributed algorithms to reduce communication energy consumption in WSNs by minimizing the total transmissionSaving Energy by Adjusting Transmission Power in Wireless Sensor Networks Xiao Chen Department

  2. Wireless Relay Networks for Green Environment Professor Zbigniew Dziong

    E-Print Network [OSTI]

    Huang, Jianwei

    of Technology, Poland, both in Electrical Engineering where he also worked as an Assistant Professor. From 1987 relay networks have been considered for 3GPP LTE and WiMax (IEEE 802.16j) technologies. The focus has of this presentation we address the issue from a different perspective. Namely, we consider how the wireless relay

  3. Reliable Packet Transmissions in Multipath Routed Wireless Networks

    E-Print Network [OSTI]

    Valaee, Shahrokh

    probability of packet loss (PPL) in wireless networks. Path diversification uses erasure codes and multiple this case blind load balancing. We show that for low PPL, blind load balancing outperforms single the fragments. We show how to distribute the fragments for minimized PPL, and maximized efficiency given a bound

  4. Reliable Packet Transmissions in Multipath Routed Wireless Networks

    E-Print Network [OSTI]

    Valaee, Shahrokh

    loss (PPL) in wireless networks. Path diversification uses erasure codes and multiple paths. We show that for low PPL, blind load balancing outperforms single-path transmission. In the second how to distribute the fragments for minimized PPL, and maximized efficiency given a bound on PPL. We

  5. Spatial Energy Balancing in Large-scale Wireless Multihop Networks

    E-Print Network [OSTI]

    de Veciana, Gustavo

    Spatial Energy Balancing in Large-scale Wireless Multihop Networks Seung Jun Baek and Gustavo de is on optimizing trade-offs between the energy cost of spreading traffic and the improved spatial balance of energy. We propose a parameterized family of energy balancing strategies for grids and approximate

  6. 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

  7. Optimizing physical layer parameters for wireless sensor networks

    E-Print Network [OSTI]

    Heinzelman, Wendi

    #12;Abstract Wireless sensor networks utilize battery-operated nodes, and thus energy efficiency of Master of Science in Electrical and Computer Engineering University of Rochester Rochester, New York 2007 the University of Rochester from 2002 to 2006, and graduated with a Bachelor of Science in Electrical

  8. Optimizing Physical Layer Parameters for Wireless Sensor Networks

    E-Print Network [OSTI]

    Heinzelman, Wendi

    relay distance and the optimal transmit energy as a function of channel noise level and path loss University of Economics and Technology, Ankara, TURKEY As wireless sensor networks utilize battery-operated nodes, energy efficiency is of paramount importance at all levels of system design. In order to save

  9. BAAP: Blackhole Attack Avoidance Protocol for Wireless Network

    E-Print Network [OSTI]

    Dharmaraja, S.

    BAAP: Blackhole Attack Avoidance Protocol for Wireless Network Saurabh Gupta Indian Institute infrastructure in adhoc net- work makes it vulnerable to various attacks. MANET routing disrupts attack is a blackhole attack in which malicious node falsely claiming itself as having the fresh

  10. Energy-Efficient Routing Schemes for Wireless Sensor Networks

    E-Print Network [OSTI]

    Khan, Maleq

    1 Energy-Efficient Routing Schemes for Wireless Sensor Networks Maleq Khan Gopal Pandurangan Bharat spanning tree (MST) is the optimal data aggregation tree for energy-efficient rout- ing. We then study energy-efficient distributed algorithms for constructing MSTs. The GHS algorithm to construct MST has

  11. Evolving an Indoor Robotic Localization System Based on Wireless Networks

    E-Print Network [OSTI]

    Braun, Torsten

    of indoor robotic localization. We investigate the design and building of an autonomous localization system provides the position of one robot in a space, as in a Cartesian plane, corroborating with the EvoEvolving an Indoor Robotic Localization System Based on Wireless Networks Gustavo Pessin1

  12. Utility-based Routing in Wireless Sensor Networks

    E-Print Network [OSTI]

    Wu, Jie

    Utility-based Routing in Wireless Sensor Networks Xiaoguang Li and Jie Wu Department of Computer the existing utility-based routing protocols for WSNs. We put them into sev- eral categories according to their utility properties, such as delay, cost, and packet delivery ratio. In addition, we will also cover

  13. Leakage-Aware Energy Synchronization for Wireless Sensor Networks

    E-Print Network [OSTI]

    Zhang, Zhi-Li

    Leakage-Aware Energy Synchronization for Wireless Sensor Networks Ting Zhu, Ziguo Zhong, Yu Gu-capacitor as the only energy storage unit. To efficiently use the harvested energy, we design and imple- ment leakage-aware con- trol can effectively utilize energy that could otherwise leak away. Nodes running leakage-aware

  14. Jamming-Aware Minimum Energy Routing in Wireless Networks

    E-Print Network [OSTI]

    Goeckel, Dennis L.

    1 Jamming-Aware Minimum Energy Routing in Wireless Networks Azadeh Sheikholeslami, Majid Ghaderi; however, energy-aware routing in the presence of active adversary (jammers) has not been considered. We. There has been some study of energy-aware ad hoc routing protocols in the literature [13], [14], [15], [16

  15. Impact of Lossy Links on Performance of Multihop Wireless Networks

    E-Print Network [OSTI]

    Holte, Robert

    ] study power-aware routing with renewable energy sources. Ephremides gives an overview on energy concerns Holte Department of Computing Science, University of Alberta, Edmonton, AB, Canada T6G 2E8 yuxi, harms wireless networks have energy constraints. Lossy links also affect energy efficiency due to retransmissions

  16. Experimental Investigations into TCP Performance over Wireless Multihop Networks

    E-Print Network [OSTI]

    Kawadia, Vikas

    , reliable and as automated as possible. The ex- perimental observations are subjected to a thorough. The cards were partially covered with copper tape to reduce their range, which enabled creation The performance of TCP over wireless networks has been stud- ied actively in the past few years. The observation

  17. Predictive Protocol Management with Contingency Planning for Wireless Sensor Networks

    E-Print Network [OSTI]

    Raja, Anita

    on enabling sensor and actuator connectivity without the use of wires. Energy consumption among the wireless of the WSN operational mode in order to optimize the energy utilization based on the time varying characteristics of the Radio-Frequency (RF) in which the network operates. I. INTRODUCTION Energy efficiency

  18. 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

  19. Short-Term Solar Energy Forecasting Using Wireless Sensor Networks

    E-Print Network [OSTI]

    Cerpa, Alberto E.

    Short-Term Solar Energy Forecasting Using Wireless Sensor Networks Stefan Achleitner, Tao Liu an advantage for output power prediction. Solar Energy Prediction System Our prediction model is based variability of more then 100 kW per minute. For practical usage of solar energy, predicting times of high

  20. Video Source Identification in Lossy Wireless Networks Shaxun Chen

    E-Print Network [OSTI]

    California at Davis, University of

    Video Source Identification in Lossy Wireless Networks Shaxun Chen , Amit Pande , Kai Zeng@ucdavis.edu, kzeng@umich.edu, pmohapatra@ucdavis.edu Abstract-- Video source identification is very important in valida- ting video evidence, tracking down video piracy crimes and regu- lating individual video sources

  1. Energy Efficient Scheduling with Power Control for Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Energy Efficient Scheduling with Power Control for Wireless Networks Bastian Katz Institute the complexity of scheduling with power control in the SINRG model of interference. Based on a novel scheme) and less energy consumption: power control admits schedules that would otherwise violate interference

  2. An EAP ID-Based Authentication Method for Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    (Certification Author- ity) and the burdensome management of certificates is removed. The presented) into IEEE 802 wired networks. It gave also birth to the IEEE 802.11i [2] which is more specific to wireless between two stations or a signature mechanism that lies on certificates to prove the ownership of a public

  3. 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

  4. Wireless Multimedia Sensor Network for plant disease detections

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of the techniques may be used is image processing through the deployment of WMSN in the cultivated field. However, transmitting massive image data wirelessly will increase significantly network traffic and particularly energy been deployed on the farmland, the inspector only needs to distinguish crop images on the computer

  5. Underground Coal Mine Monitoring with Wireless Sensor Networks

    E-Print Network [OSTI]

    Liu, Yunhao

    10 Underground Coal Mine Monitoring with Wireless Sensor Networks MO LI and YUNHAO LIU Hong Kong University of Science and Technology Environment monitoring in coal mines is an important application queries under instable circumstances. A prototype is deployed with 27 mica2 motes in a real coal mine. We

  6. 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

  7. NETWORK CODING-AWARE RATE CONTROL AND SCHEDULING IN WIRELESS NETWORKS

    E-Print Network [OSTI]

    Markopoulou, Athina

    NETWORK CODING-AWARE RATE CONTROL AND SCHEDULING IN WIRELESS NETWORKS Hulya Seferoglu , Athina demonstrate that there is benefit from making rate control and scheduling aware of the underlying network conflicts between nodes, which should be taken into account both in rate control and in scheduling. We

  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. Wireless Roadside Inspection Phase II Tennessee Commercial Mobile Radio Services Pilot Test Final Report

    SciTech Connect (OSTI)

    Franzese, Oscar [ORNL; Lascurain, Mary Beth [ORNL; Capps, Gary J [ORNL; Siekmann, Adam [ORNL

    2011-05-01T23:59:59.000Z

    The Federal Motor Carrier Safety Administration (FMCSA) Wireless Roadside Inspection (WRI) Program is researching the feasibility and value of electronically assessing truck and bus driver and vehicle safety at least 25 times more often than is possible using only roadside physical inspections. The WRI program is evaluating the potential benefits to both the motor carrier industry and to government. These potential benefits include reduction in accidents, fatalities and injuries on our highways and keeping safe and legal drivers and vehicles moving on the highways. WRI Pilot tests were conducted to prototype, test and demonstrate the feasibility and benefits of electronically collecting safety data message sets from in-service commercial vehicles and performing wireless roadside inspections using three different communication methods. This report summarizes the design, conduct and results of the Tennessee CMRS WRI Pilot Test. The purpose of this Pilot test was to demonstrate the implementation of commercial mobile radio services to electronically request and collect safety data message sets from a limited number of commercial vehicles operating in Tennessee. The results of this test have been used in conjunction with the results of the complimentary pilot tests to support an overall assessment of the feasibility and benefits of WRI in enhancing motor carrier safety (reduction in accidents) due to increased compliance (change in motor carrier and driver behavior) caused by conducting frequent safety inspections electronically, at highway speeds, without delay or need to divert into a weigh station

  10. When Both Transmitting and Receiving Energies Matter: An Application of Network Coding in Wireless Body Area Networks

    E-Print Network [OSTI]

    Shi, Xiaomeng

    A network coding scheme for practical implementations of wireless body area networks is presented, with the objective of providing reliability under low-energy constraints. We propose a simple network layer protocol for ...

  11. 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

  12. Wireless networks and mobile Ivan Stojmenovic

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    medium #12;Nikola Tesla 1856-1943 · The Serbian-American inventor, electrical engineer, and scientist for long distance transfers · Polyphase motors to use the current · Built the world's first hydroelectric plant at Niagara Falls 1895 #12;Nikola Tesla's inventions · Radio/wireless transmission · US Supreme

  13. 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

  14. Quantitative Analysis of Transmission Power Control in Wireless Ad-hoc Networks

    E-Print Network [OSTI]

    Park, Seung-Jong "Jay"

    1 Quantitative Analysis of Transmission Power Control in Wireless Ad-hoc Networks Seung-Jong Park the issue of transmission power con- trol in wireless ad-hoc networks. In general, it is assumed that minimum transmission power achieves the optimal throughput of an ad-hoc network because it produces

  15. Using Variable-Range Transmission Power Control in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Gomez-Castellanos, Javier

    Using Variable-Range Transmission Power Control in Wireless Ad Hoc Networks Javier Gomez and Andrew networks such as ad hoc and sensor networks. First, using previous work by Steele [18], we show that in this paper highlight the need to design future MAC and routing protocols for wireless ad hoc and sensor

  16. SEAD: secure efficient distance vector routing for mobile wireless ad hoc networks

    E-Print Network [OSTI]

    Ramkumar, Mahalingam

    SEAD: secure efficient distance vector routing for mobile wireless ad hoc networks Yih-Chun Hu a University, Houston, TX 77005, USA Abstract An ad hoc network is a collection of wireless computers (nodes stations or access points. Although many previous ad hoc network routing protocols have been based in part

  17. UNLV OFFICE OF INFORMATION TECHNOLOGY WIRELESS NETWORK (Wi-Fi) POLICY

    E-Print Network [OSTI]

    Hemmers, Oliver

    UNLV OFFICE OF INFORMATION TECHNOLOGY WIRELESS NETWORK (Wi-Fi) POLICY RESPONsmLE ADMINISTRATOR REVISION DATE: NA STATEMENT OF PURPOSE The purpose of this policy is to: · Maintain a secure network environment. · Ensure seamless wireless network (Wi-Fi) services on campus. ENTITIES AFFECTED BY THIS POLICY

  18. The Effect of Neighbor Graph Connectivity on Coverage Redundancy in Wireless Sensor Networks

    E-Print Network [OSTI]

    Varela, Carlos

    that the network field is covered by these nodes at the desired ratio while the usage of the energy by the sensorThe Effect of Neighbor Graph Connectivity on Coverage Redundancy in Wireless Sensor Networks problems in wireless sensor networks. To reduce the energy consumption that arises when the high number

  19. Analysis of the Impact of Hello Protocol Parameters over a Wireless Network Self-Organization

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Analysis of the Impact of Hello Protocol Parameters over a Wireless Network Self of the HELLO protocol. This makes this HELLO protocol very important for wireless networks especially for self- organizing the network. Most of layer-3 protocols assume an ideal MAC layer. In such a case, HELLO protocol

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

    E-Print Network [OSTI]

    Belding-Royer, Elizabeth M.

    Energy Efficient Communication in Next Generation Rural-Area Wireless Networks Veljko Pejovic. Rural-area networks are seen as the main beneficiaries and white spaces communication is ex- pected to outperform current wireless solutions in this domain. However, rural networks often have to rely

  1. Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration

    E-Print Network [OSTI]

    Savazzi, Stefano

    Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration Stefano Savazzi1 of new oil and gas reservoir. Seismic exploration requires a large number (500 Ă· 2000 nodes, MAC and network layer to develop wireless sensors networks tailored for oil (and gas) exploration

  2. Maintenance Awareness in Wireless Sensor Networks Andre Barroso, Utz Roedig and Cormac J. Sreenan

    E-Print Network [OSTI]

    Roedig, Utz

    Maintenance Awareness in Wireless Sensor Networks Andre Barroso, Utz Roedig and Cormac J. Sreenan Mobile & Internet Systems Laboratory (MISL), University College Cork, Ireland Email: {a.barroso, u

  3. Maintenance Efficient Routing in Wireless Sensor Networks Andre Barroso, Utz Roedig and Cormac Sreenan

    E-Print Network [OSTI]

    Sreenan, Cormac J.

    Maintenance Efficient Routing in Wireless Sensor Networks Andre Barroso, Utz Roedig and Cormac Sreenan Mobile & Internet Systems Laboratory, University College Cork, Ireland Email: {a.barroso u

  4. Energy savings in Wireless Mesh Networks in a time-variable context

    E-Print Network [OSTI]

    2010-12-20T23:59:59.000Z

    Abstract Energy consumption of communication systems is becoming a fundamental issue and, among all the sectors, wireless access networks are largely ...

  5. 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

  6. E-Print Network 3.0 - adaptive bio-inspired wireless Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Systems Summary: -224460 Traffic Adaptivity in Wireless Sensor Networks (TRAWSN) Energy efficiency is a major concern in the design... - cations were required to adapt the...

  7. Wireless Technology in Industrial Networks Andreas Willig, Member, IEEE, Kirsten Matheus, Member, IEEE, Adam Wolisz, Senior

    E-Print Network [OSTI]

    Wichmann, Felix

    of existing wireless technologies for this specific field of applications, and iii) the creation of hybrid1 Wireless Technology in Industrial Networks Andreas Willig, Member, IEEE, Kirsten Matheus, Member), pp. 1130-1151 Abstract With the success of wireless technologies in consumer electronics, standard

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

    SciTech Connect (OSTI)

    Carols H. Rentel

    2007-03-31T23:59:59.000Z

    Eaton, in partnership with Oak Ridge National Laboratory and the Electric Power Research Institute (EPRI) has completed a project that applies a combination of wireless sensor network (WSN) technology, anticipatory theory, and a near-term value proposition based on diagnostics and process uptime to ensure the security and reliability of critical electrical power infrastructure. Representatives of several Eaton business units have been engaged to ensure a viable commercialization plan. Tennessee Valley Authority (TVA), American Electric Power (AEP), PEPCO, and Commonwealth Edison were recruited as partners to confirm and refine the requirements definition from the perspective of the utilities that actually operate the facilities to be protected. Those utilities have cooperated with on-site field tests as the project proceeds. Accomplishments of this project included: (1) the design, modeling, and simulation of the anticipatory wireless sensor network (A-WSN) that will be used to gather field information for the anticipatory application, (2) the design and implementation of hardware and software prototypes for laboratory and field experimentation, (3) stack and application integration, (4) develop installation and test plan, and (5) refinement of the commercialization plan.

  9. 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.

  10. Wireless Networks A Cross-layer Perspective

    E-Print Network [OSTI]

    Libre de Bruxelles, Université

    214BC Great wall built by Shih Huang-Ti Fire towers to serve as alarms 500km (Great Wall to Hsien-yang) in 2 hours Transmission bandwidth 10-4 bits/s #12;A Brief History of Wireless Claude Chappe and the semaphore Played a key role in french revolution A tower for every 20km from Lille to Paris in 1792 Part

  11. Intelligent Network-Layer Management for Wireless Mesh Networks: Dynamic Tuning of a Reactive Routing Protocol

    E-Print Network [OSTI]

    Kolner, Brian H.

    1 Intelligent Network-Layer Management for Wireless Mesh Networks: Dynamic Tuning of a Reactive Routing Protocol Dan Marconett, Minsoo Lee, Xiaohui Ye and S. J. Ben Yoo Dept. of Electrical and Computer learning to dynamically modify reactive routing protocol parameters in real-time, to better facilitate

  12. Minimizing Energy and Maximizing Network Lifetime Multicasting in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Liang, Weifa

    trees with multiple optimization objectives. A. Related Work A number of energy-aware broadcast] that the problem of finding a minimum-energy broadcast tree is NP-hard. Particularly in [2], they have shownMinimizing Energy and Maximizing Network Lifetime Multicasting in Wireless Ad Hoc Networks Weifa

  13. 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

  14. Expected k-coverage in wireless sensor networks Li-Hsing Yen *, Chang Wu Yu, Yang-Min Cheng

    E-Print Network [OSTI]

    Chen, Sheng-Wei

    communications and micro-sensing MEMS technology has enabled the deployment of wireless sensor networksExpected k-coverage in wireless sensor networks Li-Hsing Yen *, Chang Wu Yu, Yang-Min Cheng 2005 Available online 24 August 2005 Abstract We are concerned with wireless sensor networks where n

  15. AdHoc Probe: End-to-end Capacity Probing in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Chen, Ling-Jyh

    AdHoc Probe: End-to-end Capacity Probing in Wireless Ad Hoc Networks Ling-Jyh Chen1 , Tony Sun2 and systematic study in ad hoc, multihop wireless networks is still lacking. Yet the rate of a wireless link can deployment. In this paper, we present AdHoc Probe, a packet-pair based technique, to estimate end-to-end path

  16. A Framework for Service Differentiation and Optimization in Multi-hop Wireless Networks

    E-Print Network [OSTI]

    Mani, Pradeepkumar

    2008-12-08T23:59:59.000Z

    In resource-constrained networks such as multi-hop wireless networks (MHWNs), service differentiation algorithms designed to address end users' interests (e.g. user satisfaction, QoS, etc.) should also consider efficient ...

  17. Wireless Networks 7, 343358, 2001 2001 Kluwer Academic Publishers. Manufactured in The Netherlands.

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    protocol stack. Keywords: wireless networks, mobile computing, energy efficient design, network protocols in [72] and a recent conference tutorial [54], both devoted to energy efficient design of wire- less

  18. CPS : Small : Dynamically Managing the Real-time Fabric of a Wireless Sensor-Actuator Network

    E-Print Network [OSTI]

    Lemmon, Michael

    CPS : Small : Dynamically Managing the Real-time Fabric of a Wireless Sensor-Actuator Network 1 as a multi-player game between applications (users) that is essentially a network utility maximization (NUM

  19. Bounds on the Energy Consumption of Routings in Wireless Sensor Networks

    E-Print Network [OSTI]

    Voigt, Thiemo

    Bounds on the Energy Consumption of Routings in Wireless Sensor Networks Juan Alonso1 , Adam. Energy is one of the most important resources in wireless sensor networks. We use an idealized mathematical model to study the impact of routing on energy consumption. We find explicit bounds on the minimal

  20. Pollution Attacks and Defenses in Wireless Inter-flow Network Coding Systems

    E-Print Network [OSTI]

    Curtmola, Reza

    1 Pollution Attacks and Defenses in Wireless Inter-flow Network Coding Systems Jing Dong, Reza Abstract--We study data pollution attacks in wireless inter-flow network coding systems. Although several the existing systems, and use it to analyze the impact of pollution attacks. Our analysis shows

  1. An Energy-Efficient Communication Scheme in Wireless Cable Sensor Networks

    E-Print Network [OSTI]

    Rowe, Neil C.

    An Energy-Efficient Communication Scheme in Wireless Cable Sensor Networks Xiao Chen Department of Computer Science U. S. Naval Postgraduate School Monterey, CA 93943 ncrowe@nps.edu Abstract and communication. Like wireless sensor networks with point sensors, energy-efficient communication is still

  2. Dynamic Framed-ALOHA for Energy-Constrained Wireless Sensor Networks with Energy Harvesting

    E-Print Network [OSTI]

    Simeone, Osvaldo

    to collect data from sensors without depleting their energy reserves. It is noted that such trade- offDynamic Framed-ALOHA for Energy-Constrained Wireless Sensor Networks with Energy Harvesting Fabio Framed-ALOHA (DFA) protocol is studied for wireless sensor networks with energy limitations and energy

  3. Throughput and Ergodic Capacity of Wireless Energy Harvesting Based DF Relaying Network

    E-Print Network [OSTI]

    Zhou, Xiangyun "Sean"

    -to-point communication systems and studied rate-energy trade-off assuming single-input-single-output (SISO) [1], [3Throughput and Ergodic Capacity of Wireless Energy Harvesting Based DF Relaying Network Ali A-and-forward (DF) relaying network based on wireless energy harvesting. The energy constrained relay node first

  4. Energy Balancing Routing Schemes for Low-Power Wireless Networks Eun-Sook Sung, Miodrag Potkonjak

    E-Print Network [OSTI]

    Potkonjak, Miodrag

    Energy Balancing Routing Schemes for Low-Power Wireless Networks Eun-Sook Sung, Miodrag Potkonjak}@cs.ucla.edu Abstract-- We address the problem of energy balancing in multi-hop wireless networks to optimize results show, firstly, that both schemes achieve significant improvement of energy balancing proportional

  5. Delay Bounded Rate and Power Control in Energy Harvesting Wireless Networks

    E-Print Network [OSTI]

    Rajan, Dinesh

    in environmentally powered wireless networks with bursty packet arrivals. Varying the size of the energy storage unit such as solar energy, mechanical energy and thermal energy have started finding use in wireless sensor networks, followed by an energy storage unit. The energy harvested by the front end is stored in the storage unit

  6. 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

  7. EPIC-RoofNet: An Experimental Testbed for Solar-powered Wireless Sensor Networks

    E-Print Network [OSTI]

    Nasipuri, Asis

    EPIC-RoofNet: An Experimental Testbed for Solar-powered Wireless Sensor Networks Amitangshu Pal through a shared folder. Keywords: Wireless sensor networks, solar harvesting, adaptive protocols experiments on solar-powered sensor nodes. Due to constraints in cost and size, the solar panels

  8. Energy-Aware Scheduling with Quality of Surveillance Guarantee in Wireless Sensor Networks Technical Report

    E-Print Network [OSTI]

    Jeong, Jaehoon "Paul"

    Energy-Aware Scheduling with Quality of Surveillance Guarantee in Wireless Sensor Networks 200 Union Street SE Minneapolis, MN 55455-0159 USA TR 06-021 Energy-Aware Scheduling with Quality #12;#12;1 Energy-Aware Scheduling with Quality of Surveillance Guarantee in Wireless Sensor Networks

  9. 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

  10. Reliable and Energy-Efficient Routing for Static Wireless Ad Hoc Networks with Unreliable Links

    E-Print Network [OSTI]

    Wang, Yu

    Reliable and Energy-Efficient Routing for Static Wireless Ad Hoc Networks with Unreliable Links, Yanwei Wu, Student Member, IEEE, and Yong Qi, Member, IEEE Abstract--Energy efficient routing and power. In this paper, we address the problem of energy efficient reliable routing for wireless ad hoc networks

  11. An Opportunistic Virtual MISO (OVM) Protocol for Multi-hop Wireless Networks

    E-Print Network [OSTI]

    Perkins, Dmitri

    1 An Opportunistic Virtual MISO (OVM) Protocol for Multi-hop Wireless Networks Van Nguyen-utilized and performance is not maximized. In this work, we propose the Opportunistic Virtual MISO (OVM) protocol for multi-hop wireless networks. OVM combines virtual MISO (using space- time block codes) and cooperative diversity

  12. Energy efficient management framework for multihop TDMA-based wireless networks

    E-Print Network [OSTI]

    Boutaba, Raouf

    and energy consumption. To do so, we first propose an Optimal approach, called Optimal Green Routing and LinkEnergy efficient management framework for multihop TDMA-based wireless networks Ahmed Amokrane a January 2014 Available online 11 January 2014 Keywords: TDMA-based multihop wireless networks Energy

  13. Adaptive Control of Duty Cycling in Energy-Harvesting Wireless Sensor Networks

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Adaptive Control of Duty Cycling in Energy-Harvesting Wireless Sensor Networks Christopher M wireless sensor network deployments are using harvested environmental energy to extend system lifetime. Because the temporal profiles of such energy sources exhibit great variability due to dynamic weather

  14. Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks

    E-Print Network [OSTI]

    Culler, David E.

    Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong, Xiaofan,fxjiang,culler}@eecs.berkeley.edu Abstract-- Wireless Sensor Networks are fundamentally limited by their energy storage resources and the power they obtain from their environment. Several micro-solar powered designs have been developed

  15. Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks

    E-Print Network [OSTI]

    California at Berkeley, University of

    Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong Xiaofan or to redistribute to lists, requires prior specific permission. #12;Design and Analysis of Micro-Solar Power Systems for Wireless Sensor Networks Jaein Jeong, Xiaofan Jiang and David Culler EECS Department, University

  16. Routing Techniques in Wireless Sensor Networks Abbas Jamalipour, PhD; Fellow IEEE, Fellow IEAust

    E-Print Network [OSTI]

    Routing Techniques in Wireless Sensor Networks Abbas Jamalipour, PhD; Fellow IEEE, Fellow IEAust and micro electro-mechanical systems (MEMS) are influencing the progression towards the smart dust era, industrial and home automation wireless sensor networks (WSN) will have a significant impact. Accordingly

  17. Power Controlled Minimum Frame Length Scheduling in TDMA Wireless Networks with

    E-Print Network [OSTI]

    Arabshahi, Payman

    Power Controlled Minimum Frame Length Scheduling in TDMA Wireless Networks with Sectored Antennas controlled min- imum frame length scheduling for TDMA wireless networks. Given a set of one-hop transmission scheduling and power control was first addressed by Tamer and Ephremides in [1, 2]. Given a set of one

  18. Utilizing Solar Power in Wireless Sensor Networks Thiemo Voigt, Hartmut Ritter, Jochen Schiller

    E-Print Network [OSTI]

    Voigt, Thiemo

    Utilizing Solar Power in Wireless Sensor Networks Thiemo Voigt, Hartmut Ritter, Jochen Schiller propose to utilize solar power in wireless sensor networks, establishing a topology where ­ changing over propose and evaluate two protocols that perform solar- aware routing. The presented simulation results

  19. Integrated Scheduling Using Rendezvous Window and Sniff Mode for Wireless Personal Area Networks

    E-Print Network [OSTI]

    Lee, Tae-Jin

    by connecting many light-weight personal devices such as PDAs, mobile phones, and media players. UWB (Ultra WideIntegrated Scheduling Using Rendezvous Window and Sniff Mode for Wireless Personal Area Networks and in a piconet level as well as power saving, which is desired for wireless personal area network systems. 1

  20. Barter-based cooperation in delay-tolerant personal wireless networks

    E-Print Network [OSTI]

    Bencsáth, Boldizsár

    from the prolifera- tion of Bluetooth capable personal devices such as mobile phones, PDAs, and MP3-tolerant wireless network of personal devices. A potential problem in delay-tolerant personal wireless networks. The motivation for such a selfish behavior is that personal devices are usually bat- tery powered and have

  1. Reducing Uncertainty in Wireless Sensor Networks

    E-Print Network [OSTI]

    network. OSDI '06. [4] O.V. K. Langendoen et. al. Murphy loves potatoes: Experiences from a pilot sensor Island [1] Redwood Tree (Wikipedia) Redwoods [2] Agriculture [4] Potato Field (Kevin Temple) Volcano, Memento2 ­ "Heisenbugs" ­ Waste of resources ­ Monitoring suffers from network problems, too. [1] N

  2. 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

  3. IEEE/ACM TRANSACTIONS ON NETWORKING, VOL. 13, NO. 6, DECEMBER 2005 1325 Cooperation in Wireless Ad Hoc Networks: A

    E-Print Network [OSTI]

    a market-based approach to stimulate cooperation in ad hoc networks where nodes charge a price for relaying to illustrate our results. Index Terms--Ad hoc network, pricing, rate control, wireless networks. I. INTRODUCTION AWIRELESS ad hoc network is a collection of nodes which form a network independently of any fixed

  4. UCIT Data Network Standards Campus Wireless Network Standard

    E-Print Network [OSTI]

    Habib, Ayman

    on the University of Calgary campuses, both inside buildings and outdoor areas. This standard does not apply Standard in buildings as the infrastructure is upgraded. All new AP deployments will be connected to 1 Gbps POE switches which will then be connected to the building head end switches. 4.3. Wireless Standard Wi

  5. Wireless Networking Projects Ashok K. Agrawala

    E-Print Network [OSTI]

    Gruner, Daniel S.

    677err 4243correct 4920total Training set = SET2 Nuzzer #12;Energy Efficient Routing EER #12;Energy portion of node energy ­ Noise Error Rate Retransmission Energy Consumption S D b a c 5 2 3 2 2 1 · To reduce energy consumption, we need reduce the number of retransmissions. · In ad hoc networks, paths

  6. Impact of Network Density on Data Aggregation in Wireless Sensor Networks Chalermek Intanagonwiwat

    E-Print Network [OSTI]

    Heidemann, John

    message. Energy-wise, opportunistic aggrega- tion on a low-latency tree is not optimal because data may) to improve path sharing for more energy savings. We have implemented this greedy-tree approach in ns-2 and we is essential for wireless sensor networks where energy resources are limited. In a previously proposed data

  7. Energy Management in Wireless Sensor Network Operations

    E-Print Network [OSTI]

    Mohapatra, Arupa Kumar

    2013-07-26T23:59:59.000Z

    ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 9 Comparison of long-run average costs of policies in 4-node line network (ct = 1 and T = 1) . . . . . . . . . . . . . . . . . . . . . . . 61 10 Fluid- ow model of an energy harvesting sensor . . . . . . . . . . . . 66 11 Sample path of X(t...) under threshold-based node activation policy . . 69 12 Sample path of X(t) in an exponential on-o environment . . . . . . 76 13 Limiting availability for di erent values of threshold (L) . . . . . . . 78 14 Energy ow model of an energy harvesting...

  8. Network Coding in Distributed, Dynamic, and Wireless Environments: Algorithms and Applications

    E-Print Network [OSTI]

    Chaudhry, Mohammad

    2012-02-14T23:59:59.000Z

    NETWORK CODING IN DISTRIBUTED, DYNAMIC, AND WIRELESS ENVIRONMENTS: ALGORITHMS AND APPLICATIONS A Dissertation by MOHAMMAD ASAD REHMAN CHAUDHRY Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment... of the requirements for the degree of DOCTOR OF PHILOSOPHY December 2011 Major Subject: Electrical Engineering Network Coding in Distributed, Dynamic, and Wireless Environments: Algorithms and Applications Copyright 2011 Mohammad Asad Rehman Chaudhry NETWORK...

  9. Flexible application driven network striping over Wireless Wide Area Networks

    E-Print Network [OSTI]

    Qureshi, Asfandyar

    2005-01-01T23:59:59.000Z

    Inverse multiplexing, or network striping, allows the construction of a high-bandwidth virtual channel from a collection of multiple low-bandwidth network channels. Striping systems usually employ a packet scheduling policy ...

  10. Energy Consumption of TCP Reno, Newreno, and SACK in Multi-Hop Wireless Networks

    E-Print Network [OSTI]

    Singh, Suresh

    Energy Consumption of TCP Reno, Newreno, and SACK in Multi-Hop Wireless Networks Harkirat Singh In this paper we compare the energy consumption behavior of three versions of TCP ­ Reno, Newreno, and SACK the lowest overall energy consumption. 1. INTRODUCTION Today, sophisticated wireless devices are gaining

  11. TrueLink: A Practical Countermeasure to the Wormhole Attack in Wireless Networks

    E-Print Network [OSTI]

    Krishnamurthy, Srikanth

    TrueLink: A Practical Countermeasure to the Wormhole Attack in Wireless Networks Jakob Eriksson attack, wireless transmissions are recorded at one location and replayed at another, creating a virtual link under attacker control. Proposed countermeasures to this attack use tight clock synchronization

  12. 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

  13. Experiences with a High-Fidelity Wireless Building Energy Auditing Network

    E-Print Network [OSTI]

    Dutta, Prabal

    Experiences with a High-Fidelity Wireless Building Energy Auditing Network Xiaofan Jiang, Minh Van to determine and audit the energy envelope of an active labo- ratory. Classic WSN issues of coverage, Experimentation, Measurement, Performance, Human Factors Keywords Energy, Audit, Building, Power, Wireless, Sensor

  14. Joint Scheduling, Power Control and Routing in Symmetric, One-dimensional, Multi-hop Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Joint Scheduling, Power Control and Routing in Symmetric, One-dimensional, Multi-hop Wireless scheduling, routing and power control that achieves max-min fair rate allocation in a multi-hop wireless that a traditional layering network approach, separating routing, scheduling, flow and power control

  15. A Channel Model for Wireless Sensor Networks in Gas Turbine Engines

    E-Print Network [OSTI]

    Atkinson, Robert C

    A Channel Model for Wireless Sensor Networks in Gas Turbine Engines K. Sasloglou, I. A. Glover , P.5 GHz) for wireless sensors deployed over the external surfaces of a gas turbine engine is reported. The model is empirical and based on a series of transmission loss measurements over the surface of a gas

  16. Wireless Non-contact EEG/ECG Electrodes for Body Sensor Networks

    E-Print Network [OSTI]

    Cauwenberghs, Gert

    Wireless Non-contact EEG/ECG Electrodes for Body Sensor Networks Yu M. Chi and Gert Cauwenberghs University of California, San Diego La Jolla, CA 92093 Abstract--A wireless EEG/ECG system using non transmits EEG/ECG telemetry to a computer for storage and processing. Index Terms--ECG, EEG, Body Sensor

  17. Enhancements for distributed certificate authority approaches for mobile wireless ad hoc networks.

    SciTech Connect (OSTI)

    Van Leeuwen, Brian P.; Michalski, John T.; Anderson, William Erik

    2003-12-01T23:59:59.000Z

    Mobile wireless ad hoc networks that are resistant to adversarial manipulation are necessary for distributed systems used in military and security applications. Critical to the successful operation of these networks, which operate in the presence of adversarial stressors, are robust and efficient information assurance methods. In this report we describe necessary enhancements for a distributed certificate authority (CA) used in secure wireless network architectures. Necessary cryptographic algorithms used in distributed CAs are described and implementation enhancements of these algorithms in mobile wireless ad hoc networks are developed. The enhancements support a network's ability to detect compromised nodes and facilitate distributed CA services. We provide insights to the impacts the enhancements will have on network performance with timing diagrams and preliminary network simulation studies.

  18. THE DEVELOPMENT OF A NOVEL MINIATURISED MODULAR PLATFORM FOR WIRELESS SENSOR NETWORKS

    E-Print Network [OSTI]

    Roedig, Utz

    , A. Barroso2 , S. Bellis1 , J. Benson2 , U. Roedig2 , K. Delaney1 , C. Sreenan2 1 NMRC ­ {brendan.barroso|j.benson|u.roedig|c.sreenan}@cs.ucc.ie ABSTRACT Wireless sensor networks are collections

  19. 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 ...

  20. Multiplexing, scheduling, and multicasting strategies for antenna arrays in wireless networks

    E-Print Network [OSTI]

    Lopez, Michael J. (Michael John), 1972-

    2002-01-01T23:59:59.000Z

    A transmitter antenna array has the ability to direct data simultaneously to multiple receivers within a wireless network, creating potential for a more integrated view of algorithmic system components. In this thesis, ...

  1. A protocol for the moderation of non-cooperative nodes in wireless local area networks

    E-Print Network [OSTI]

    ´opez and Fernando Paganini Universidad ORT Uruguay Abstract-- MAC protocols for wireless networks such as 802 Cuareim 1451, Montevideo, Uruguay. Email: {lopez ma,paganini}@ort.edu.uy. This work was supported by PDT-Uruguay

  2. Wireless sensor network planning with application to UWB localization in GPS-denied environments

    E-Print Network [OSTI]

    Jourdan, Damien, 1978-

    2006-01-01T23:59:59.000Z

    Wireless Sensor Networks (WSN) have received much attention in the past 5 years, and much progress has been made in designing hardware, communications protocols, routing, and sensor fusion algorithms. The planning and ...

  3. On the Energy Benefit of Network Coding for Wireless Multiple Unicast

    E-Print Network [OSTI]

    Boucherie, Richard J.

    } a wireless multiple unicast configuration. We measure energy consumption by the total energy re- quired ratio of the energy consumption of routing to the energy consumption of network coding, where C minimum energy consumption o

  4. Development of software architecture for environmental monitoring using wireless sensor networks

    E-Print Network [OSTI]

    Hari, Piyush

    2006-01-01T23:59:59.000Z

    In this thesis, I describe the development of the software architecture for temperature monitoring using Wireless Sensor Networks (WSN). The goal of the software is to provide a means to remotely monitor and analyze ...

  5. 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

  6. Online Policies for Opportunistic Virtual MISO Routing in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Rossi, Michele

    Online Policies for Opportunistic Virtual MISO Routing in Wireless Ad Hoc Networks Cristiano in virtual multiple input single output (MISO) trans- missions and space-time block codes have been proposed

  7. Protocols for multi-antenna ad-hoc wireless networking in interference environments

    E-Print Network [OSTI]

    Hinton, Danielle A. (Danielle Ayodele), 1978-

    2010-01-01T23:59:59.000Z

    A fundamental question for the design of future wireless networks concerns the nature of spectrum management and the protocols that govern use of the spectrum. In the oligopoly model, spectrum is owned and centrally managed, ...

  8. Coverage and Connectivity Aware Neural Network Based Energy Efficient Routing in Wireless Sensor Networks

    E-Print Network [OSTI]

    ,; Kumar, Manoj; Patel, R B; 10.5121/jgraphhoc.2010.2105

    2010-01-01T23:59:59.000Z

    There are many challenges when designing and deploying wireless sensor networks (WSNs). One of the key challenges is how to make full use of the limited energy to prolong the lifetime of the network, because energy is a valuable resource in WSNs. The status of energy consumption should be continuously monitored after network deployment. In this paper, we propose coverage and connectivity aware neural network based energy efficient routing in WSN with the objective of maximizing the network lifetime. In the proposed scheme, the problem is formulated as linear programming (LP) with coverage and connectivity aware constraints. Cluster head selection is proposed using adaptive learning in neural networks followed by coverage and connectivity aware routing with data transmission. The proposed scheme is compared with existing schemes with respect to the parameters such as number of alive nodes, packet delivery fraction, and node residual energy. The simulation results show that the proposed scheme can be used in wi...

  9. 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.

  10. 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.

  11. Securing Ad Hoc Wireless Networks Against Data Injection Attacks Using Firewalls

    E-Print Network [OSTI]

    Kasera, Sneha Kumar

    Securing Ad Hoc Wireless Networks Against Data Injection Attacks Using Firewalls Jun Cheol Park-- We propose to secure ad hoc networks against data injection attacks by placing firewall functionality at strategic locations in the ad hoc network. We first show that, given the locations of attackers and victims

  12. Evaluation of a Routing Architecture for Wireless Messaging Ad-Hoc Networks

    E-Print Network [OSTI]

    Bencsáth, Boldizsár

    Evaluation of a Routing Architecture for Wireless Messaging Ad-Hoc Networks Megha Goel1 and M´ark F self-organizing ad-hoc networks can be used to provide the short messaging service, at a much lower of ad- hoc network routing in which mobile nodes are allowed to relay in place of static nodes. We

  13. Too Much Mobility Limits the Capacity of Wireless Ad-hoc Networks

    E-Print Network [OSTI]

    Jafar, Syed A.

    Too Much Mobility Limits the Capacity of Wireless Ad-hoc Networks Syed Ali Jafar Electrical@ece.uci.edu Abstract-- We consider a Ă? user isotropic fast fading ad-hoc network with no channel state information determine the capacity region of this ad-hoc network for any partition of the users into transmitters

  14. Energy Balance in Wireless Networks Using Connection Segmentation and Range Control

    E-Print Network [OSTI]

    Simha, Rahul

    Energy Balance in Wireless Networks Using Connection Segmentation and Range Control Nitin Kumar are optimized to balance energy consumption across the network. This paper formulates an en­ ergy balance­ nalized for their important role in network operation. While route selection to balance energy [13], [31

  15. Priority-Based Broadcasting of Sensitive Data in Error-Prone Wireless Networks

    E-Print Network [OSTI]

    Wu, Jie

    in its Binary-Coded Decimal (BCD) representation. In BCD, each decimal digit is represented as a 4 bits that benefits from network coding. We also consider the case of burst errors and discuss how can we make our--Symbol-level coding, broadcasting, reliability, burst error, random linear network coding, priority, wireless networks

  16. Constructing Minimum-Energy Broadcast Trees In Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Liang, Weifa

    algorithm, power awareness, ad hoc networks, energy consumption optimization, broad- cast and multicastConstructing Minimum-Energy Broadcast Trees In Wireless Ad Hoc Networks Weifa Liang Department related to power consump- tion in this kind of network. One is the minimum-energy broadcast tree problem

  17. 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

  18. Rendezvous Design Algorithms for Wireless Sensor Networks with a Mobile Base Station

    E-Print Network [OSTI]

    of controlled mobil- ity and in-network data caching and can achieve a desirable balance between network energy; Tian Wang; Weijia Jia; Minming Li Deptment of Computer Science, City University of Hong Kong 83 Tat that significant energy saving can be achieved in wireless sensor networks with a mobile base station that collects

  19. Modular Topology Control and Energy Model for Wireless Ad Hoc Sensor Networks

    E-Print Network [OSTI]

    Jay Yang, Shanchieh

    Modular Topology Control and Energy Model for Wireless Ad Hoc Sensor Networks Niranjan in a harsh terrain typically are battery operated and, therefore, require energy efficient network protocols. In order to ease the analysis of the energy usage of proposed network protocols, this paper proposes

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

    E-Print Network [OSTI]

    Pande, Partha Pratim

    A Wideband Body-Enabled Millimeter-Wave Transceiver for Wireless Network-an-Chip Xinmin Yu, Suman-A highly energy-efficient on-chip communication network is crucial for the development of future multi Network-on-Chip (WiNoC) architecture. In order to reduce the power consumption of the transceiver, body

  1. Optimization of Wireless Access Point Placement in Realistic Urban Heterogeneous Networks

    E-Print Network [OSTI]

    Yu, Wei

    for irregular heterogeneous networks with hierarchical APs such as macro/micro base-stations, picoOptimization of Wireless Access Point Placement in Realistic Urban Heterogeneous Networks Yicheng network under a given user geographic distribution, and proposes an iterative method to optimize

  2. QoS Considerations in Wireless Sensor Networks for Telemedicine Sunil Kumar b **

    E-Print Network [OSTI]

    Kumar, Sunil

    micro sensor technology (Mobile Sensor Networks for Telemedicine applications -- MSNT) provides Networks, Telemedicine, CAC, QoS, Data Query 1. INTRODUCTION Advances in micro-electro-mechanical systemsQoS Considerations in Wireless Sensor Networks for Telemedicine Fei Hu a * Sunil Kumar b

  3. Abstract--A mobile ad hoc network is a wireless communication network which does not rely on a fixed

    E-Print Network [OSTI]

    Lyu, Michael R.

    Abstract--A mobile ad hoc network is a wireless communication network which does not rely protecting the security of the network is essential. Like many distributed systems, security in ad hoc. The experimental results indicate clear advantages of our approach in providing effective security in mobile ad hoc

  4. Some Implications of Low Power Wireless to IP Networking Kannan Srinivasan, Prabal Dutta, Arsalan Tavakoli, and Philip Levis

    E-Print Network [OSTI]

    Levis, Philip

    down, networks have expanded to in- clude large numbers of wireless desktops, laptops, palmtops conserve energy. Wireless sensor networks (sensornets) are one heavily studied subclass of PANs [8 for many different networks and usage patterns, working well, or at least well enough, in many domains

  5. Performance Impacts of Lower-Layer Cryptographic Methods in Mobile Wireless Ad Hoc Networks

    SciTech Connect (OSTI)

    VAN LEEUWEN, BRIAN P.; TORGERSON, MARK D.

    2002-10-01T23:59:59.000Z

    In high consequence systems, all layers of the protocol stack need security features. If network and data-link layer control messages are not secured, a network may be open to adversarial manipulation. The open nature of the wireless channel makes mobile wireless mobile ad hoc networks (MANETs) especially vulnerable to control plane manipulation. The objective of this research is to investigate MANET performance issues when cryptographic processing delays are applied at the data-link layer. The results of analysis are combined with modeling and simulation experiments to show that network performance in MANETs is highly sensitive to the cryptographic overhead.

  6. 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 ...

  7. A mobile-agent based wireless sensing network for structural monitoring applications

    SciTech Connect (OSTI)

    Taylor, Stuart G [Los Alamos National Laboratory; Farinholt, Kevin M [Los Alamos National Laboratory; Figueiredo, Eloi [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory; Farrar, Charles R [Los Alamos National Laboratory; Flynn, Eric B [UCSD; Mascarenas, David L [UCSD; Todd, Michael D [UCSD

    2008-01-01T23:59:59.000Z

    A new wireless sensing network paradigm is presented for structural monitoring applications. In this approach, both power and data interrogation commands are conveyed via a mobile agent that is sent to sensor nodes to perform intended interrogations, which can alleviate several limitations of the traditional sensing networks. Furthermore, the mobile agent provides computational power to make near real-time assessments on the structural conditions. This paper will discuss such prototype systems, which are used to interrogate impedance-based sensors for structural health monitoring applications. Our wireless sensor node is specifically designed to accept various energy sources, including wireless energy transmission, and to be wirelessly triggered on an as-needed basis by the mobile agent or other sensor nodes. The capabilities of this proposed sensing network paradigm are demonstrated in the laboratory and the field.

  8. 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

  9. Energy Efficient Greedy Link Scheduling and Power Control in wireless networks

    E-Print Network [OSTI]

    Sridharan, Arun

    2012-01-01T23:59:59.000Z

    We consider the problem of joint link scheduling and power control for wireless networks with average transmission power constraints. Due to the high computational complexity of the optimal policies, we extend the class of greedy link scheduling policies to handle average power constraints. We develop a greedy link scheduling and power control scheme GECS, with provable performance guarantees. We show that the performance of our greedy scheduler can be characterized using the Local Pooling Factor (LPF) of a network graph, which has been previously used to characterize the stability of the Greedy Maximal Scheduling (GMS) policy for wireless networks. We also simulate the performance of GECS on wireless network, and compare its performance to another candidate greedy link scheduling and power control policy.

  10. 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.

  11. Modeling the Performance and the Energy Usage of Wireless Sensor Networks by Retrial Queueing Systems

    E-Print Network [OSTI]

    Sztrik, János

    Modeling the Performance and the Energy Usage of Wireless Sensor Networks by Retrial Queueing and the energy usage of the sensor network. Two operations are compared. In the first case only the event driven requests can initiate reaching the radio trans- mission (RF) unit. Time driven requests have to wait

  12. Non-Uniform Entropy Compression for Uniform Energy Distribution in Wireless Sensor Networks

    E-Print Network [OSTI]

    California at Davis, University of

    Xiaoming Lu, Matt Spear, S. Felix Wu and Karl Levitt Department of Computer Science UC Davis, Davis, CANon-Uniform Entropy Compression for Uniform Energy Distribution in Wireless Sensor Networks to increase the network's lifetime and to normalize the energy use per unit time, but they each have

  13. EAMTR: Energy aware multi-tree routing for wireless sensor networks

    E-Print Network [OSTI]

    Fariborzi, Hossein

    IEEE 802.15.4 is the prevailing standard for low-rate wireless personal area networks. It specifies the physical layer and medium access control sub-layer. Some emerging standards such as ZigBee define the network layer ...

  14. Self-Powered Wireless Nano-scale Sensor Networks within Chemical Reactors

    E-Print Network [OSTI]

    New South Wales, University of

    a reactor for a bottom-up control of the chemical synthesis with the ultimate goal of improvingSelf-Powered Wireless Nano-scale Sensor Networks within Chemical Reactors Eisa Zarepour1 Mahbub networks (NSNs) can be applied in many chemical applications to monitor and control the chemical process

  15. Improving the Energy Balance of Field-based Routing in Wireless Sensor Networks

    E-Print Network [OSTI]

    Bustamante, Fabián E.

    Improving the Energy Balance of Field-based Routing in Wireless Sensor Networks Goce Trajcevski of the network merge into a single path. These path merging effects decrease significantly the energy balance deployments. When multiple sources transmit infor- mation simultaneously, together with energy balancing

  16. A Cluster-based Energy Balancing Scheme in Heterogeneous Wireless Sensor Networks

    E-Print Network [OSTI]

    Bölöni, Ladislau L

    A Cluster-based Energy Balancing Scheme in Heterogeneous Wireless Sensor Networks Jing Ai, Damla,turgut,lboloni}@cpe.ucf.edu Abstract. In this paper, we propose a novel, cluster-based energy balancing scheme. We assume the existence significant improvements in energy balancing leading to a longer con- nected time of the network

  17. Rapid Development and Flexible Deployment of Adaptive Wireless Sensor Network Applications

    E-Print Network [OSTI]

    Roman, Gruia-Catalin

    -Liang Fok, Gruia-Catalin Roman, and Chenyang Lu Washington University in St. Louis Saint Louis, Missouri 63130 {liang, roman, lu}@cse.wustl.edu Abstract Wireless sensor networks (WSNs) are difficult to pro development. An Agilla network is de- ployed with no pre-installed application. Instead, users inject mobile

  18. PERFORMANCE OF DISTRIBUTED UTILITY-BASED POWER CONTROL FOR WIRELESS AD HOC NETWORKS

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    PERFORMANCE OF DISTRIBUTED UTILITY-BASED POWER CONTROL FOR WIRELESS AD HOC NETWORKS Jianwei Huang network. The users exchange prices that reflect their loss in utility due to interference. The prices are then used to determine optimal (utility maximizing) power levels for each user. We present simulation

  19. Slow-Rate Utility-Based Resource Allocation in Wireless Networks

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    a network [6]. Utility-based resource allocation has recently received atten- tion both for wire-line [41 Slow-Rate Utility-Based Resource Allocation in Wireless Networks Peijuan Liu, Randall Berry are specified via a utility function that depends on the received data rate. The allocation of power across

  20. A framework for use of wireless sensor networks in forest fire detection and monitoring

    E-Print Network [OSTI]

    Ulusoy, Ă?zgĂĽr

    consuming energy efficiently. Ă? 2012 Elsevier Ltd. All rights reserved. 1. Introduction Forest firesA framework for use of wireless sensor networks in forest fire detection and monitoring Yunus Emre sensor networks Forest fire detection Environmental monitoring a b s t r a c t Forest fires are one

  1. Energy-Efficient Reliable Routing Considering Residual Energy in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Langendoen, Koen

    Energy-Efficient Reliable Routing Considering Residual Energy in Wireless Ad Hoc Networks Javad minimum energy routing (RMER). RMECR addresses three important requirements of ad hoc networks: energy-efficiency energy of nodes as well as quality of links to find energy-efficient and reliable routes that increase

  2. Pricing and bandwidth allocation problems in wireless multi-tier networks

    E-Print Network [OSTI]

    Boyer, Edmond

    Pricing and bandwidth allocation problems in wireless multi-tier networks Camila Maria Gabriel- tecture changes to cope with high throughput, energy and cost- efficiency demands. Emerging solutions. In these heterogeneous networks, we study the joint service pricing and bandwidth allocation problem at the operator

  3. Cross-Layer Design for Energy Conservation in Wireless Sensor Networks

    E-Print Network [OSTI]

    Boutaba, Raouf

    Cross-Layer Design for Energy Conservation in Wireless Sensor Networks Fatma Bouabdallah, Nizar allows significant energy conservation. On the other hand, at the MAC layer, we propose to control limit for each link, further energy conservation can be achieved, improving thus the network lifetime

  4. Wireless Sensor Networks Powered by Ambient Energy Harvesting (WSN-HEAP) Survey and

    E-Print Network [OSTI]

    Shihada, Basem

    Wireless Sensor Networks Powered by Ambient Energy Harvesting (WSN-HEAP) ­ Survey and Challenges networks (WSNs) research has pre- dominantly assumed the use of a portable and limited energy source, viz. batteries, to power sensors. Without energy, a sensor is essentially useless and cannot contribute

  5. Asymptotically Optimal Power-Aware Routing for Multihop Wireless Networks with Renewable

    E-Print Network [OSTI]

    Srikant, Rayadurgam

    1 Asymptotically Optimal Power-Aware Routing for Multihop Wireless Networks with Renewable Energy the performance of multihop radio networks in the presence of energy constraints, and design routing algorithms to optimally utilize the available energy. The energy model allows vastly different energy sources

  6. RaWMS -Random Walk based Lightweight Membership Service for Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Tomkins, Andrew

    : Algorithms, Design Additional Key Words and Phrases: Ad Hoc Networks, Membership service, Random Walk 1. INTRODUCTION Context of this study. Membership services serve as essential building blocks in a varietyRaWMS - Random Walk based Lightweight Membership Service for Wireless Ad Hoc Networks ZIV BAR

  7. 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

  8. 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

  9. Optimal Power Allocation in Wireless Networks with Transmitter-Receiver Power Tradeoffs

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    are more pronounced in networks with asymmetric power costs. 1 Introduction Wireless ad hoc networks have. Habitat monitoring [13], environmental observation and forecasting [1], organ monitoring and health mon has some on board memory for data storage. The deployed nodes not only originate data but can also act

  10. Energy Consumption in Wireless Sensor Networks is a fundamental issue in terms of functionality and network lifetime. Minimization

    E-Print Network [OSTI]

    Vouyioukas, Demosthenes

    ABSTRACT Energy Consumption in Wireless Sensor Networks is a fundamental issue in terms of functionality and network lifetime. Minimization of energy consumption by applying optimization techniques setup. Application driven profiling of energy consumption at the node level is a useful tool for optimal

  11. Energy Efficiency of MIMO Transmission Strategies in Wireless Sensor Networks Huaiyu Dai, Liang Xiao, and Quan Zhou

    E-Print Network [OSTI]

    Dai, Huaiyu

    Energy Efficiency of MIMO Transmission Strategies in Wireless Sensor Networks Huaiyu Dai, Liang in the link adaptation study. Keywords: Cooperative MIMO, Energy Efficiency, MIMO Transmission, Mobile Agent, Sensor Network, Spectral Efficiency, Virtual MIMO, Wideband Regime. #12;Energy Efficiency of MIMO

  12. PerformanceEvaluation of Adaptiveand Energy-efficient MAC Protocolsfor WirelessSensor Networks Torsten Braun, Philipp Hurni

    E-Print Network [OSTI]

    Braun, Torsten

    PerformanceEvaluation of Adaptiveand Energy-efficient MAC Protocolsfor WirelessSensor Networks Bern, Switzerland braun@iam.unibe.ch, hurni@iam.unibe.ch Abstract The paper describes an energy-efficient schemes. Keywords: Wireless Sensor Networks, Energy-efficient Protocols, MediumAccessControl I

  13. Centralized route recovery based on multi-hop wakeup time estimation for wireless sensor networks with ultra low duty cycles

    E-Print Network [OSTI]

    Bahk, Saewoong

    of smart-meters that are interconnected to construct meshed wireless sensor networks. A smart meter data from each smart-meter are gathered into concentrators, and delivered to AMI (Advanced Metering Infrastructure) server through PLC (Power Line Communication) or public wireless networks. Since the smart-meter

  14. Mobile Networks and Applications 5 (2000) 13 1 Mobile data networks are tailored to accommodate bursty wireless data transmission within large geographical areas.

    E-Print Network [OSTI]

    Chamzas, Christodoulos

    of networks, including wireless TCP networks, ad-hoc networks, multihop packet radio networks and standardized public data networks, such as the Terrestrial Trunked Radio (TETRA) and the Cellular Digital Packet Data systems," by C. Jedrzycki and V.C.M. Leung, considers a CDPD network operating on non-dedicated radio

  15. Power and spectrum efficient communications in wireless ad hoc networks

    E-Print Network [OSTI]

    Qu, Qi

    2008-01-01T23:59:59.000Z

    Ephremides, “Joint Scheduling and Power Control for WirelessOptimal Power Control, Scheduling, and Routing in UWBDistributed Joint Scheduling and Power Control Algorithm for

  16. Network Formation Games Among Relay Stations in Next Generation Wireless Networks

    E-Print Network [OSTI]

    Saad, Walid; Ba?ar, Tamer; Debbah, Mérouane; Hjřrungnes, Are

    2012-01-01T23:59:59.000Z

    The introduction of relay station (RS) nodes is a key feature in next generation wireless networks such as 3GPP's long term evolution advanced (LTE-Advanced), or the forthcoming IEEE 802.16j WiMAX standard. This paper presents, using game theory, a novel approach for the formation of the tree architecture that connects the RSs and their serving base station in the \\emph{uplink} of the next generation wireless multi-hop systems. Unlike existing literature which mainly focused on performance analysis, we propose a distributed algorithm for studying the \\emph{structure} and \\emph{dynamics} of the network. We formulate a network formation game among the RSs whereby each RS aims to maximize a cross-layer utility function that takes into account the benefit from cooperative transmission, in terms of reduced bit error rate, and the costs in terms of the delay due to multi-hop transmission. For forming the tree structure, a distributed myopic algorithm is devised. Using the proposed algorithm, each RS can individuall...

  17. PERFORMANCE ANALYSIS USING SEQUENTIAL DETECTION IN A SERIAL MULTI-HOP WIRELESS SENSOR NETWORK

    E-Print Network [OSTI]

    Choi, Dae H.

    2010-01-16T23:59:59.000Z

    PERFORMANCE ANALYSIS USING SEQUENTIAL DETECTION IN A SERIAL MULTI-HOP WIRELESS SENSOR NETWORK A Thesis by DAE HYUN CHOI Submitted to the O?ce of Graduate Studies of Texas A&M University in partial fulflllment of the requirements for the degree... of MASTER OF SCIENCE August 2008 Major Subject: Electrical Engineering PERFORMANCE ANALYSIS USING SEQUENTIAL DETECTION IN A SERIAL MULTI-HOP WIRELESS SENSOR NETWORK A Thesis by DAE HYUN CHOI Submitted to the O?ce of Graduate Studies of Texas A&M University...

  18. Fear: A Fuzzy-based Energy-aware Routing Protocol for Wireless Sensor Networks

    E-Print Network [OSTI]

    Ahvar, Ehsan; Piran, Mohammad Jalil

    2011-01-01T23:59:59.000Z

    Many energy-aware routing protocols have been proposed for wireless sensor networks. Most of them are only energy savers and do not take care about energy balancing. The energy saver protocols try to decrease the energy consumption of the network as a whole; however the energy manager protocols balance the energy consumption in the network to avoid network partitioning. This means that energy saver protocols are not necessarily energy balancing and vice versa. However, the lifetime of wireless sensor network is strictly depending on energy consumption; therefore, energy management is an essential task to be considered. This paper proposes an energy aware routing protocol, named FEAR, which considers energy balancing and energy saving. It finds a fair trade-off between energy balancing and energy saving by fuzzy set concept. FEAR routing protocol is simulated and evaluated by Glomosim simulator.

  19. 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

  20. Link Quality Metrics in Large Scale Indoor Wireless Sensor Networks

    E-Print Network [OSTI]

    Boyer, Edmond

    ^ut ´energ´etique de cette estimation et de ses cons´equences sur la stabilit´e des routes construites sur (WSN) 1 Introduction Much research has considered the problem of characterizing wireless links

  1. 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, Boulder, CO 80303 Small (10kg) UAVs are low-cost low-risk candidates for emerging UAV applications. Examples include multi-UAV swarming, flocking, and sensing operations; or, as a communication relay

  2. Energy Efficient Modulation for a Wireless Network-on-Chip Architecture

    E-Print Network [OSTI]

    Kodi, Avinash

    Energy Efficient Modulation for a Wireless Network-on-Chip Architecture Dominic Di integrated com- putational systems, research into emerging technologies and devices to replace traditional metallic interconnects has become critical. In this paper we propose an initial implementation for a hybrid

  3. Bounds on the Energy Consumption of Routings in Wireless Sensor Networks

    E-Print Network [OSTI]

    Bounds on the Energy Consumption of Routings in Wireless Sensor Networks Juan Alonso1 , Adam Technical Report T2003:22 ISSN 1100-3154 ISRN:SICS-T­2003/22-SE Abstract. Energy is one of the most of routing on energy consumption. Our results are very general and, within the assumptions listed in Section

  4. Energy-Efficient Protocols for Wireless Networks with Adaptive MIMO Capabilities

    E-Print Network [OSTI]

    Krunz, Marwan M.

    of a power-aware routing (PAR) scheme that selects minimum-energy end-to-end paths. Our adaptive designs (see Krunz et. al [5] for a survey)1 , some of which are aimed at energy conservation (e.g., Agarwal etEnergy-Efficient Protocols for Wireless Networks with Adaptive MIMO Capabilities Mohammad Z. Siam

  5. ENERGY-EFFICIENT GEOGRAPHIC ROUTING IN ENVIRONMENTALLY POWERED WIRELESS SENSOR NETWORKS

    E-Print Network [OSTI]

    California at Davis, University of

    , GEBRES maintains higher minimum residual energy on nodes and achieves better load balancing in terms of having a smaller standard deviation of residual energy among nodes. GEBRES exhibits a little degradationENERGY-EFFICIENT GEOGRAPHIC ROUTING IN ENVIRONMENTALLY POWERED WIRELESS SENSOR NETWORKS Kai Zeng

  6. A MAC Layer Protocol for Priority-based Reliable Multicast in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Demirbas, Murat

    A MAC Layer Protocol for Priority-based Reliable Multicast in Wireless Ad Hoc Networks Murat Abstract RTS-CTS handshake based protocols achieve "reliable unicast" by eliminating the hidden node. Here we present a simple, light-weight, and self- stabilizing MAC protocol, namely Busy Elimination

  7. Efficient Broadcasting via Rateless Coding in Multihop Wireless Networks with Local Information

    E-Print Network [OSTI]

    Rahnavard, Nazanin

    ), and Collaborative Rateless Broadcast (CRB- cast). Our simulations reveal that our scheme performs well in comparison: Algorithms, reliability, performance. Keywords: Wireless sensor networks, broadcasting, relia- bility, energy@ece.gatech.edu, fekri@ece.gatech.edu ABSTRACT The problem of reliable and energy-efficient one-to-all broad- casting

  8. A Reliability Aware Flooding Algorithm (RAFA) In Wireless Multi-hop Networks

    E-Print Network [OSTI]

    A Reliability Aware Flooding Algorithm (RAFA) In Wireless Multi-hop Networks Youndo Lee, Yoonbo the reliability of flooding, by using the retransmission mechanism. The retransmission policy of RBP is to perform on the retransmission- based flooding mechanism. RBP improves the reliability of flooding using the knowledge about

  9. Hector is an Energy effiCient Tree-based Optimized Routing protocol for wireless networks

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    Hector is an Energy effiCient Tree-based Optimized Routing protocol for wireless networks Nathalie geographic locations. We propose HECTOR, a hybrid energy efficient tree-based optimized routing protocol, based on two sets of virtual coordinates. One set is based on rooted tree coordinates, and the other

  10. AN ENERGY-AWARE SPANNING TREE AlGORITHM FOR DATA AGGREGATION IN WIRELESS SENSOR NETWORKS

    E-Print Network [OSTI]

    Wong, Vincent

    AN ENERGY-AWARE SPANNING TREE AlGORITHM FOR DATA AGGREGATION IN WIRELESS SENSOR NETWORKS Marc Lee. In this paper, we propose E-Span, which is an energy-aware spanning tree algorithm. E-Span is a distributed's residual energy. In [5], a dynamic convoy tree-based collaboration framework for tracking a mobile target

  11. Maximizing the Number of Broadcast Operations in Random Geometric Ad-Hoc Wireless Networks

    E-Print Network [OSTI]

    Calamoneri, Tiziana

    static ad-hoc wireless networks whose nodes, equipped with the same initial battery charge, may dynamically change their transmission range. When a node v transmits with range r(v), its battery charge of a node depends, in turn, on the energy power supplied to the node. In particular, the power Pv required

  12. TOFU: Semi-Truthful Online Frequency Allocation Mechanism for Wireless Networks

    E-Print Network [OSTI]

    Li, Xiang-Yang

    technology is the opportunistic spectrum usage. Subleasing is widely regarded as another potential way and Technology, Tsinghua University, Beijing, China Department of Computer Science, Illinois Institute of Technology, USA Emails: pxu3@iit.edu, xli@cs.iit.edu. ! Abstract--In wireless networks, we need to allocate

  13. Cooperative Component-Based Software Deployment in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Cooperative Component-Based Software Deployment in Wireless Ad Hoc Networks Hervé Roussain-based software applications on mobile devices (such as laptops or personal digital assistants) capable of ad hoc also makes it possible for mobile devices to com- municate directly in ad hoc mode, that is, without

  14. Inverse Modeling Using a Wireless Sensor Network (WSN) for Personalized Daylight Harvesting

    E-Print Network [OSTI]

    Agogino, Alice M.

    Inverse Modeling Using a Wireless Sensor Network (WSN) for Personalized Daylight Harvesting Ryan: predictive: daylight harvesting: piecewise linear regression: building energy efficiency Abstract: Smart light levels, discretized by sub-hourly sun angles. Applied on two days of daylight and ten days

  15. Modulation-Aware Energy Balancing in Hierarchical Wireless Sensor Networks1

    E-Print Network [OSTI]

    Pedram, Massoud

    Modulation-Aware Energy Balancing in Hierarchical Wireless Sensor Networks1 Maryam Soltan, Inkwon becoming critical design concerns, a significant amount of research has focused on energy-aware design physical layer characteristics at the system deployment stage and analyzing the effects on spatial energy

  16. Load-Balanced Routing Scheme for Energy-Efficient Wireless Sensor Networks

    E-Print Network [OSTI]

    Boutaba, Raouf

    Load-Balanced Routing Scheme for Energy-Efficient Wireless Sensor Networks Fatma Bouabdallah, Nizar. In this paper, we investigate the potential energy conservation achieved by balancing the traffic throughout, load balancing, performance analysis. I. INTRODUCTION In order to minimize the energy consumption

  17. Energy-Balanced Cooperative Routing in Multihop Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Wang, Yu

    Energy-Balanced Cooperative Routing in Multihop Wireless Ad Hoc Networks Siyuan Chen Minsu Huang. In this paper, we aim to study the impact of cooperative routing on balancing the energy distribution among their transmission power, our cooperative routing method can balance the energy among neighboring nodes and maximize

  18. Modeling and Analysis of Energy Harvesting Nodes in Wireless Sensor Networks

    E-Print Network [OSTI]

    Sikdar, Biplab

    , the probability of event loss due to energy run out as well as an analytical vulnerability metric, namely average state as well as the remaining energy supply of the node, we provide an analysis of the Loss ProbabilityModeling and Analysis of Energy Harvesting Nodes in Wireless Sensor Networks Alireza Seyedi

  19. An Approach to Minimal Power Routing and Scheduling in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    's fixed power level that is used, leading to data loss. The problem that we address is primarily a routingAn Approach to Minimal Power Routing and Scheduling in Wireless Ad Hoc Networks Sugata Hazarika # Jim Kurose # Dennis Goeckel + # Department of Computer Science + Department. of Electrical Engineering

  20. An Approach to Minimal Power Routing and Scheduling in Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    's fixed power level that is used, leading to data loss. The problem that we address is primarily a routingAn Approach to Minimal Power Routing and Scheduling in Wireless Ad Hoc Networks Sugata Hazarika Jim Kurose Dennis Goeckel Department of Computer Science Department. of Electrical Engineering University

  1. Low Cost Monitoring and Intruders Detection using Wireless Video Sensor Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    a serious challenge to wireless video sensor networks of weak computation and battery power. In this paper the efficiency of our approach through theoretical analysis and demonstrate the benefits of our scheduling of low capacity (resolution, processing, and storage) of a same or similar type can be deployed

  2. Utility-Optimal Scheduling in Time-Varying Wireless Networks with Delay Constraints

    E-Print Network [OSTI]

    propose an on-line scheduling policy and prove that it is utility- optimal. Surprisingly, this policy doesUtility-Optimal Scheduling in Time-Varying Wireless Networks with Delay Constraints I-Hong Hou CSL-varying environment, we consider the system problem of maximizing the total utility of clients, where the utilities

  3. SensEH: From Simulation to Deployment of Energy Harvesting Wireless Sensor Networks

    E-Print Network [OSTI]

    Picco, Gian Pietro

    panels. I. INTRODUCTION The market value of wireless sensor networks (WSNs) is growing steadily problem. Indeed, in many cases the energy density--whether solar, wind, vibrational or thermal in nature the influence of given environmental parameters, and finally to observe the WSN behavior over extended periods

  4. 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.

  5. BEAM: A Burst-Aware Energy-Efficient Adaptive MAC Protocol for Wireless Sensor Networks

    E-Print Network [OSTI]

    Braun, Torsten

    BEAM: A Burst-Aware Energy-Efficient Adaptive MAC Protocol for Wireless Sensor Networks Markus|wagen|braun|dolfus@iam.unibe.ch Abstract--Low latency for packet delivery, high throughput, good reactivity, and energy-efficient operation that optimizations for energy-efficiency and performance parameters are contradicting, most MAC protocols proposed

  6. Optimal and Near-Optimal Energy-Efficient Broadcasting in Wireless Networks

    E-Print Network [OSTI]

    Varvarigo, Emmanouel "Manos"

    Optimal and Near-Optimal Energy-Efficient Broadcasting in Wireless Networks Christos A, 26110 Patras, Greece Abstract. In this paper we propose an energy-efficient broadcast algo- rithm on the multicost approach and selects an optimal energy-efficient set of nodes for broadcasting, tak- ing

  7. Error Control Coding in Low-Power Wireless Sensor Networks: When is ECC

    E-Print Network [OSTI]

    Howard, Sheryl

    Error Control Coding in Low-Power Wireless Sensor Networks: When is ECC Energy-Efficient? Sheryl L. Interference is not considered; it would lower dCR. Analog decoders are shown to be the most energy-efficient at the decoder outweighs the transmitted power savings due to using ECC, then ECC would not be energy-efficient

  8. An Integral Flow-Based Energy-Efficient Routing Algorithm for Wireless Sensor Networks

    E-Print Network [OSTI]

    Prakash, Ravi

    An Integral Flow-Based Energy-Efficient Routing Algorithm for Wireless Sensor Networks Shashidhar. As sensor nodes are energy-constrained, energy-efficient routing is essential for increasing the lifetime. In this paper, we consider static base stations and propose an algorithmic approach to obtain integral energy-efficient

  9. Energy-efficient Multicasting in Wireless Networks with Fixed Node Transmission Power

    E-Print Network [OSTI]

    Varvarigo, Emmanouel "Manos"

    Energy-efficient Multicasting in Wireless Networks with Fixed Node Transmission Power Christos Computer Technology Institute, Greece manos@ceid.upatras.gr ABSTRACT In this work, we propose an energy-efficient are fixed. Our algorithm is based on the multicost approach and selects an optimal energy-efficient set

  10. PW-MAC: An Energy-Efficient Predictive-Wakeup MAC Protocol for Wireless Sensor Networks

    E-Print Network [OSTI]

    Shihada, Basem

    PW-MAC: An Energy-Efficient Predictive-Wakeup MAC Protocol for Wireless Sensor Networks Lei Tang-MAC (Predictive-Wakeup MAC), a new energy-efficient MAC protocol based on asyn- chronous duty cycling. In PW it to X-MAC, WiseMAC, and RI-MAC, three previous energy-efficient MAC protocols, under multiple concurrent

  11. An Energy Efficient Select Optimal Neighbor Protocol for Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    New South Wales, University of

    . This is especially important in wireless sensor networks where energy consumption is the primary concern. A number node compared to CSMA/CA based MAC protocols such as IEEE 802.11. When electronic energy consumption is a considerable part of energy consumption, SON has a better energy performance than traditional optimal pruning

  12. Robust and Probabilistic Power-aware Scheduling of Wireless Sensor Networks

    E-Print Network [OSTI]

    Egerstedt, Magnus

    that sensing devices are equipped with small devices like solar panels to harvest energy. In such scenariosRobust and Probabilistic Power-aware Scheduling of Wireless Sensor Networks Hassan Jaleel to its available power. More importantly, to compensate for the effects of decrease in available power

  13. Analysis of a Cone-Based Distributed Topology Control Algorithm for Wireless Multi-hop Networks

    E-Print Network [OSTI]

    Chaudhuri, Soma

    ], network protocols that min- imize energy consumption are key to the successful usage of wireless sensor at maximum power then, if a graph Ga con- taining is R, i.e. p(R) = P. If every node transmits with power P, then we have an induced graph GR = (V, E

  14. Energy-Aware Geographic Routing in Lossy Wireless Sensor Networks with Environmental

    E-Print Network [OSTI]

    California at Davis, University of

    1 Energy-Aware Geographic Routing in Lossy Wireless Sensor Networks with Environmental Energy combine geographic routing and energy-aware routing techniques and take into account the realistic lossy energy based protocols and geographic routing protocols without energy awareness. GREESs can maintain

  15. Energy-aware Georouting with Guaranteed Delivery in Wireless Sensor Networks with

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Energy-aware Georouting with Guaranteed Delivery in Wireless Sensor Networks with Obstacles E. H algorithm invokes an energy-aware Face routing that guarantees delivery. Our work is the first to optimize node using only local neighborhood information. Within this framework, energy-aware routing schemes use

  16. Optimal Traffic-Oblivious Energy-Aware Routing For Multihop Wireless Networks

    E-Print Network [OSTI]

    Holte, Robert

    constraints. If the power supply is renewable, it is desirable that the energy consumption rate is less than the renewal rate. Lin et al. [15] study power-aware routing with renewable energy sources. Some previous workOptimal Traffic-Oblivious Energy-Aware Routing For Multihop Wireless Networks Yuxi Li Janelle Harms

  17. Asymptotically Optimal Transmission Policies for Large-Scale Low-Power Wireless Sensor Networks

    E-Print Network [OSTI]

    Starobinski, David

    Asymptotically Optimal Transmission Policies for Large-Scale Low-Power Wireless Sensor Networks. The objective is to devise joint routing, power control and transmission scheduling policies in order to gather formulate the problem as maximizing the utility of transmissions subject to explicit fairness constraints

  18. Moving Away from Collision Avoidance: Towards Collision Detection in Wireless Networks

    E-Print Network [OSTI]

    Nelakuditi, Srihari

    Nelakuditi University of South Carolina ABSTRACT Wireless networks are founded on the principles of collision to abort transmission. The collision notification consists of a unique signature, sent on the same transmissions. We call this Carrier Sense Multiple Access with Collision Notification (CSMA/CN). Early results

  19. Energy efficient wireless unicast routing alternatives for machine-to-machine networks

    E-Print Network [OSTI]

    Uysal-Biyikoglu, Elif

    Review Energy efficient wireless unicast routing alternatives for machine-to-machine networks Neyre into shortest-path based energy-efficient routing alternatives to provide a reference for system designers. Next, a detailed account of energy-efficient unicast routing alternatives, with a particular focus

  20. Towards a Zero-Configuration Wireless Sensor Network Architecture for Smart Buildings

    E-Print Network [OSTI]

    Towards a Zero-Configuration Wireless Sensor Network Architecture for Smart Buildings Lars Schor. Within a smart building many sensors and actuators are interconnected to form a control system. Nowa {lschor, sommer, wattenhofer}@tik.ee.ethz.ch Abstract Today's buildings account for a large fraction

  1. Energy Aware Efficient Geographic Routing in Lossy Wireless Sensor Networks with

    E-Print Network [OSTI]

    Hou, Y. Thomas

    1 Energy Aware Efficient Geographic Routing in Lossy Wireless Sensor Networks with Environmental, GREES-L and GREES-M, which combine geographic routing and energy efficient routing techniques and take supply when making routing decisions. Simulation results show that GREESs are more energy efficient than

  2. Poster Abstract: Energy-Efficient Distributed Support Vector Machines for Wireless Sensor Networks

    E-Print Network [OSTI]

    Tsakalides, Panagiotis

    Poster Abstract: Energy-Efficient Distributed Support Vector Machines for Wireless Sensor Networks of interest. In this paper, we present two energy-efficient algorithms to perform distributed incremental centralized SVM training methods, while being much more efficient in terms of energy cost. 1. INTRODUCTION One

  3. Load and Energy Aware Topology Control in Wireless Ad-hoc Networks

    E-Print Network [OSTI]

    Rahman, A.K.M. Ashikur

    of (energy efficient) relays. However, using the same set of relays all the time causes some nodes to becomeLoad and Energy Aware Topology Control in Wireless Ad-hoc Networks Tandra Chakraborty, Fazlay Rabbi a family of connected topology with (possibly) disjoint relay sets. Thus, by creating different energy

  4. Mapping SysML to Modelica to Validate Wireless Sensor Networks Non-Functional Requirements

    E-Print Network [OSTI]

    Boyer, Edmond

    Mapping SysML to Modelica to Validate Wireless Sensor Networks Non-Functional Requirements SamirML) and the Modelica language which promote the reusability and improve the development process. In this work, we elements in Modelica. Thanks to the SysML requirement diagram which is transformed into Modelica properties

  5. Understanding optimal data gathering in the energy and latency domains of a wireless sensor network

    E-Print Network [OSTI]

    Melodia, Tommaso

    of city districts. In typical applications, sensors monitor their neighboring area, extract informationUnderstanding optimal data gathering in the energy and latency domains of a wireless sensor network Telekommunikation Wien (ftw.), Donau City Strae 1, 1220 Wien, Austria Received 14 October 2005; received in revised

  6. Using Energy-Efficient Overlays to Reduce Packet Error Rates in Wireless Ad-Hoc Networks

    E-Print Network [OSTI]

    Khan, Bilal

    the problem of how to balance Western Michigan University, MI. John Jay College of Criminal Justice, City1 Using Energy-Efficient Overlays to Reduce Packet Error Rates in Wireless Ad-Hoc Networks A. Al-Fuqaha G. Ben Brahim M. Guizani B. Khan Abstract-- In this paper we present new energy-efficient tech

  7. An Energy Model for Simulation Studies of Wireless Sensor Networks using OMNeT++

    E-Print Network [OSTI]

    Breu, Ruth

    An Energy Model for Simulation Studies of Wireless Sensor Networks using OMNeT++ Feng Chen, Isabel of the energy effi- cient performance is demanded. In this paper, we present a generic energy model developed for the simulation frame- work OMNeT++. The model allows to accurately evaluate the energy performance (in terms

  8. Multi-hop wireless charging optimization in Low-Power Networks

    E-Print Network [OSTI]

    Boyer, Edmond

    to address the challenging problem of energy consumption in low-power networks. Based on these breakthroughs, none of these works have considered the multihop energy transmission, whose feasibility have been demonstrated recently. In such a system, a node can transmit energy wirelessly to its neighbors. In this paper

  9. 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

  10. Statistical Approach to Radioactive Target Detection and Location via Wireless Sensor Networks

    E-Print Network [OSTI]

    Zhang, Tonglin

    : tlzhang@purdue.edu Fax: 1-765-4940558 AbstractThe detection of materials or devices for nuclear or radiological weapons of mass destruction is fundamentally important to national safety and security of radioactive target via wireless sensor networks. The statistical approach includes a hypotheses test

  11. Detecting Selective Forwarding Attacks in Wireless Sensor Networks using Support Vector Machines

    E-Print Network [OSTI]

    Shilton, Alistair

    concerning energy . In this article, we propose a centralized intrusion detection scheme based on SupportDetecting Selective Forwarding Attacks in Wireless Sensor Networks using Support Vector Machines Vector Machines (SVMs) and sliding windows. We find that our system can detect black hole attacks

  12. Guaranteed delivery for geographical anycasting in wireless multi-sink sensor and sensor-actor networks

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    of sinks may receive the report from sensors, and meet application demands. However, the cost of anycasting and providing service may depend on the distance of the receiving sinks/actors to the re- porting sensor. Energy consumption and scalability are two challenging issues since wireless networks operate on limited

  13. ENERGY-EFFICIENT GEOGRAPHIC ROUTING IN ENVIRONMENTALLY POWERED WIRELESS SENSOR NETWORKS

    E-Print Network [OSTI]

    Hou, Y. Thomas

    ENERGY-EFFICIENT GEOGRAPHIC ROUTING IN ENVIRONMENTALLY POWERED WIRELESS SENSOR NETWORKS Kai Zengt- efficient routing protocols are requisite for the WSN appli- cations. In this paper, we study energy-efficient efficient than the corresponding residual energy based protocols without considering the property

  14. Towards a Secure, Wireless-Based, Home Area Network for Metering in Smart Grids

    E-Print Network [OSTI]

    Namboodiri, Vinod

    1 Towards a Secure, Wireless-Based, Home Area Network for Metering in Smart Grids Vinod Namboodiri, Student Member, IEEE, Ward Jewell, Fellow, IEEE Abstract--Compared to the conventional grid, the smart significant develop- ments are based on smart grid technology ­ an automated sys- tem with improved

  15. Joint Power Control and Link Scheduling in Wireless Networks for Throughput Optimization

    E-Print Network [OSTI]

    Huang, Jianwei

    Joint Power Control and Link Scheduling in Wireless Networks for Throughput Optimization Liqun Fu formulate the general joint link scheduling and power control problem as an in- teger linear programming optimality. Index Terms--scheduling, power control, SINR constraints. I. INTRODUCTION Due to their unconfined

  16. Energy Efficient Joint Scheduling and Power Control for Wireless Sensor Networks

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

    Energy Efficient Joint Scheduling and Power Control for Wireless Sensor Networks Gang Lu in TDMA link scheduling with transmission power control using a realistic SINR-based interference model. We then investigate the scheduling and power control problem with the objective of minimizing

  17. Spectrum-Sensing Opportunistic Wireless Relay Networks: Outage and Diversity Performance

    E-Print Network [OSTI]

    Yener, Aylin

    Lee Aylin Yener Wireless Communications and Networking Laboratory Electrical Engineering Department cooperatively sense the spectrum and help the designated cognitive relay node. I. INTRODUCTION The demand. Currently, the radio spectrum is regulated and the licensed spectrum bands are not "shared". On the other

  18. Lifetime Optimization of Multi-hop Wireless Sensor Networks by Regulating the Frequency of Use of

    E-Print Network [OSTI]

    Ingram, Mary Ann

    of Cooperative Transmission Jin Woo Jung and Mary Ann Ingram School of Electrical and Computer EngineeringLifetime Optimization of Multi-hop Wireless Sensor Networks by Regulating the Frequency of Use model, we show how Cooperative Transmission (CT), when it is used to extend the communication range, can

  19. Dynamic Routing Trees with Energy Harvesting Constraints for Wireless Body Area Networks

    E-Print Network [OSTI]

    Tsouri, Gill

    for recharging batteries. Examples of energy harvesters include thermoelectric generators (body heat as an energy using computer simulations and models of energy harvesting. Energy sources of body heat, ambient lightDynamic Routing Trees with Energy Harvesting Constraints for Wireless Body Area Networks Nikhil

  20. An On-demand Minimum Energy Routing Protocol for a Wireless Ad Hoc Network

    E-Print Network [OSTI]

    Brown, Timothy X.

    An On-demand Minimum Energy Routing Protocol for a Wireless Ad Hoc Network Sheetalkumar Doshi the necessary features of an on-demand minimum energy routing protocol and suggests mechanisms the performance of an on-demand minimum energy routing protocol in terms of energy savings with an existing on

  1. An On-demand Minimum Energy Routing Protocol for a Wireless Ad Hoc Network

    E-Print Network [OSTI]

    An On-demand Minimum Energy Routing Protocol for a Wireless Ad Hoc Network Sheetalkumar Doshi of an on-demand minimum energy routing protocol and suggests mechanisms for their imple- mentation. We of an on-demand minimum energy routing protocol in terms of energy savings with an existing on-demand ad

  2. Node-Replacement Policies to Maintain Threshold-Coverage in Wireless Sensor Networks

    E-Print Network [OSTI]

    Vokkarane, Vinod M.

    1 Node-Replacement Policies to Maintain Threshold-Coverage in Wireless Sensor Networks Sachin the sensing coverage falls below the minimum threshold-coverage. We develop three node-replacement policies failed sensor node for replacement. Based on different performance criteria, every time a sensor node

  3. Sentry selection in wireless networks Paul Balister, Bela Bollobas, Amites Sarkar, and Mark Walters

    E-Print Network [OSTI]

    Banaji,. Murad

    Sentry selection in wireless networks Paul Balister, B´ela Bollob´as, Amites Sarkar, and Mark grants CNS-0721983, CCF- 0728928 and DMS-0906634. Amites Sarkar Department of Mathematics, Western Washington University, Bellingham, WA 98225, USA, e-mail: amites.sarkar@wwu.edu Mark Walters School

  4. E-Print Network 3.0 - area network performance Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    networks - network performance modeling - wireless networks - wireless sensor networks - ad hoc ... Source: Iowa State University, Office of Biorenewables Programs Collection:...

  5. Measuring Diversity on a Low-Altitude UAV in a Ground-to-Air Wireless 802.11 Mesh Network

    E-Print Network [OSTI]

    Kung, H. T.

    Measuring Diversity on a Low-Altitude UAV in a Ground-to-Air Wireless 802.11 Mesh Network H. T ground node and receivers on a small, low-altitude unmanned aerial vehicle (UAV) in a 802.11 wireless as well. I. INTRODUCTION Small, low-altitude unmanned aerial vehicles (UAVs) have reached a development

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

    E-Print Network [OSTI]

    Havinga, Paul J.M.

    delay. This chapter addresses the additional goal of efficient energy usage of the mobilesEnergy-efficient wireless communication In this chapter we present an energy-efficient highly of wireless networks, adaptations in bandwidth scheduling and error control are necessary to achieve energy

  7. 1076 IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 2, JUNE 2013 Wireless Network Design for Transmission Line

    E-Print Network [OSTI]

    Manimaran, Govindarasu

    1076 IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 2, JUNE 2013 Wireless Network Design for Transmission Line Monitoring in Smart Grid Benazir Fateh, Student Member, IEEE, Manimaran Govindarasu, Senior for smart grid integration [2], [3]. Wireless sensor based monitoring of transmission lines provides

  8. Low Power Body Sensor Network for Wireless ECG Based on Relaying of Creeping Waves at 2.4GHz1

    E-Print Network [OSTI]

    Tsouri, Gill

    Low Power Body Sensor Network for Wireless ECG Based on Relaying of Creeping Waves at 2.4GHz1 Engineering Rochester Institute of Technology Abstract- A wireless communication platform for ECG operating applications that demand higher data rates than ECG.1 I. INTRODUCTION The Electrocardiogram (ECG) [1

  9. Commercialization strategies for emerging technologies : wireless power in the market for external power adapters

    E-Print Network [OSTI]

    Tseng, Ryan

    2009-01-01T23:59:59.000Z

    The purpose of this thesis is to explore the different challenges facing start-ups that are engaged in intense competition to lead the commercialization of a complex technology that is initially unable to meet the demands ...

  10. Adaptive Sampling for Wireless Sensor Networks Rebecca M. Willett

    E-Print Network [OSTI]

    Willett, Rebecca

    net- work that can significantly reduce energy consumption. Under a piecewise smooth field assumption activating only n3/4 of the sensors in the net- work. This approach can save significant energy compared acquisition, and communication contribute significantly to the energy ex- penditure of wireless sensor

  11. 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

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

    E-Print Network [OSTI]

    Boyer, Edmond

    of weights that dynamically accounts for both the experienced QoS and the transmission conditions. This new is properly cited. 1. Introduction Providing mobile multimedia transmission services with an adequate QoS is very challenging. In contrast with wired communications, wireless transmissions are subject to many

  13. Wireless Networks manuscript No. (will be inserted by the editor)

    E-Print Network [OSTI]

    Zhao, Qing

    to transmit such that the total cost (such as energy consumption or the number of transmissions) is minimized. In contrast to the wireless broadcast problems for minimizing the energy consumption and the number over all the transmissions (e.g., the transmission and reception energy, the price for accessing

  14. Integration of Groundwater Transport Models with Wireless Sensor Networks

    E-Print Network [OSTI]

    Han, Qi "Chee"

    ~nigo Urteaga2 , Qi Han2 , Anura Jayasumana3 , Tissa Illangasekare1 1 Division of Environmental Sciences dynamic hydrological and environmental processes. As the wireless nodes are resource constrained, mass be conceptualized in the WSN context. INTRODUCTION As groundwater contamination is an established problem with many

  15. Greenpass RADIUS Tools for Delegated Authorization in Wireless Networks

    E-Print Network [OSTI]

    , New Hampshire June 3, 2004 Examining Committee: ____________________________ Sean Smith (chair. Folt Dean of Graduate Studies #12;#12;ii Abstract* Dartmouth's Greenpass project extends how public key cryptography can be used to secure the wireless LAN with a RADIUS (Remote Authentication Dial In User Service

  16. Utility-based Bandwidth Adaptation for Multi-Class Traffic QoS Provisioning in Wireless Networks

    E-Print Network [OSTI]

    Haddadi, Hamed

    Utility-based Bandwidth Adaptation for Multi-Class Traffic QoS Provisioning in Wireless Networks of ongoing calls to cope with the network resource fluctuations. In this paper, we propose a utility scheme, each call is assigned a utility function and depending on the network load the bandwidth

  17. IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 1, MARCH 2013 133 Reliable Wireless Communication Networks for

    E-Print Network [OSTI]

    Cai, Lin

    Networks for Demand Response Control Lei Zheng, Student Member, IEEE, Ning Lu, Senior Member, IEEE, and Lin performance of wireless communication networks to sup- port demand response (DR) control. First, the impact requirements of DR programs. Index Terms--Communications reliability, demand response, network topology, outage

  18. Joint Routing, Scheduling And Power Control For Multihop Wireless Networks With Multiple Antennas

    E-Print Network [OSTI]

    Vangala, Harish; Sharma, Prof Vinod

    2011-01-01T23:59:59.000Z

    We consider the problem of Joint Routing, Scheduling and Power-control (JRSP) problem for multihop wireless networks (MHWN) with multiple antennas. We extend the problem and a (sub-optimal) heuristic solution method for JRSP in MHWN with single antennas. We present an iterative scheme to calculate link capacities(achievable rates) in the interference environment of the network using SINR model. We then present the algorithm for solving the JRSP problem. This completes a feasible system model for MHWN when nodes have multiple antennas. We show that the gain we achieve by using multiple antennas in the network is linear both in optimal performance as well as heuristic algorithmic performance.

  19. An Energy-Aware On-Demand Routing Protocol for Ad-Hoc Wireless Networks

    E-Print Network [OSTI]

    Veerayya, Mallapur

    2008-01-01T23:59:59.000Z

    An ad-hoc wireless network is a collection of nodes that come together to dynamically create a network, with no fixed infrastructure or centralized administration. An ad-hoc network is characterized by energy constrained nodes, bandwidth constrained links and dynamic topology. With the growing use of wireless networks (including ad-hoc networks) for real-time applications, such as voice, video, and real-time data, the need for Quality of Service (QoS) guarantees in terms of delay, bandwidth, and packet loss is becoming increasingly important. Providing QoS in ad-hoc networks is a challenging task because of dynamic nature of network topology and imprecise state information. Hence, it is important to have a dynamic routing protocol with fast re-routing capability, which also provides stable route during the life-time of the flows. In this thesis, we have proposed a novel, energy aware, stable routing protocol named, Stability-based QoS-capable Ad-hoc On-demand Distance Vector (SQ-AODV), which is an enhancement...

  20. Performance of wireless sensor networks under random node failures

    SciTech Connect (OSTI)

    Bradonjic, Milan [Los Alamos National Laboratory; Hagberg, Aric [Los Alamos National Laboratory; Feng, Pan [Los Alamos National Laboratory

    2011-01-28T23:59:59.000Z

    Networks are essential to the function of a modern society and the consequence of damages to a network can be large. Assessing network performance of a damaged network is an important step in network recovery and network design. Connectivity, distance between nodes, and alternative routes are some of the key indicators to network performance. In this paper, random geometric graph (RGG) is used with two types of node failure, uniform failure and localized failure. Since the network performance are multi-facet and assessment can be time constrained, we introduce four measures, which can be computed in polynomial time, to estimate performance of damaged RGG. Simulation experiments are conducted to investigate the deterioration of networks through a period of time. With the empirical results, the performance measures are analyzed and compared to provide understanding of different failure scenarios in a RGG.

  1. Power Scheduling for Multi-Hop Wireless Networks

    E-Print Network [OSTI]

    Yu, Yuan

    2009-01-01T23:59:59.000Z

    an achievable sum rate for this MISO-BC relay net- work byBC relay network and MISO-BC relay network are investigatedreceiver. We will skip the MISO case since it is similar to

  2. Precise Time Synchronization for Wireless Sensor Networks using the

    E-Print Network [OSTI]

    of Information Technology and Electrical Engineering January 2010 #12;#12;Abstract For sensor networks a wide to the needs of data gathering, the main applica- tion of sensor networks. Sensor data is often useless

  3. Analysis of a ConeBased Distributed Topology Control Algorithm for Wireless Multihop Networks

    E-Print Network [OSTI]

    Li, Li Erran

    [1], network protocols that min­ imize energy consumption are key to the successful usage of wireless in the smallest symmetric graph G# con­ taining all edges (u, v) such that u can communicate with v using power pu is R, i.e. p(R) = P . If every node transmits with power P , then we have an induced graph GR = (V, E

  4. SensorFlock: An Airborne Wireless Sensor Network of Micro-Air 1Jude Allred, 1Ahmad Bilal Hasan, 1Saroch Panichsakul, 2William Pisano,2Peter Gray, 1Jyh Huang,

    E-Print Network [OSTI]

    Mohseni, Kamran

    SensorFlock: An Airborne Wireless Sensor Network of Micro-Air Vehicles 1Jude Allred, 1Ahmad Bilal.Pisano}@colorado.edu Abstract An airborne wireless sensor network (WSN) composed of bird-sized micro aerial vehicles (MAVs, and wireless communication networking between MAVs. We present experimental results from flight tests of flocks

  5. A Weakest Chain Approach to Assessing the Overall Effectiveness of the 802.11 Wireless Network Security

    E-Print Network [OSTI]

    Tasoluk, Berker; 10.5121/ijwmn.2011.3101

    2011-01-01T23:59:59.000Z

    This study aims to assess wireless network security holistically and attempts to determine the weakest link among the parts that comprise the 'secure' aspect of the wireless networks: security protocols, wireless technologies and user habits. The assessment of security protocols is done by determining the time taken to break a specific protocol's encryption key, or to pass an access control by using brute force attack techniques. Passphrase strengths as well as encryption key strengths ranging from 40 to 256 bits are evaluated. Different scenarios are planned and created for passphrase generation, using different character sets and different number of characters. Then each scenario is evaluated based on the time taken to break that passphrase. At the end of the study, it is determined that the choice of the passphrase is the weakest part of the entire 802.11 wireless security system.

  6. Routing algorithms for large scale wireless sensor networks

    E-Print Network [OSTI]

    Nittala Venkata, Lakshmana Prasanth

    2005-02-17T23:59:59.000Z

    such as power, memory, and CPU processing capabilities. In this thesis, we assume an All to All communication mode in an N ? N grid sensor network. We explore routing algorithms which load balance the network without compromising the shortest paths constrain. We... failed nodes). In static network case, we derived mathematical formulae representing the maximum and minimum loads on a sensor grid, when specific routing strategies are employed. We show improvement in performance in load balancing of the grid by using...

  7. An Adaptive Energy-Efficient and Low-Latency MAC for Data Gathering in Wireless Sensor Networks

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

    nodes to a sink through a unidirectional tree. In this paper, we propose DMAC, an energy efficient gathering trees in sensor networks, DMAC provides significant energy savings and latency re- duction whileAn Adaptive Energy-Efficient and Low-Latency MAC for Data Gathering in Wireless Sensor Networks

  8. Trailing Mobile Sinks: A Proactive Data Reporting Protocol for Wireless Sensor Networks Xinxin Liu, Han Zhao, Xin Yang

    E-Print Network [OSTI]

    Li, Xiaolin "Andy"

    Biosystems and Agriculture Eng. Oklahoma State University Email: ning.wang@okstate.edu Abstract--In Wireless battery life, energy saving is of paramount importance in the design of sensor network protocols. Recent to trail point 2 in a sensor network deployed in a wild area. Black solid route represents data report

  9. Composite Materials with Self-Contained Wireless Sensing Networks Kristin Schaaf, Robert Kim, and Sia Nemat-Nasser

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

    Composite Materials with Self-Contained Wireless Sensing Networks Kristin Schaaf, Robert Kim efforts to develop structural composite materials which include networks of sensors with decision-making capabilities that extend the functionality of the composite materials to be information-aware. Composite panels

  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. Rendezvous Planning in Mobility-assisted Wireless Sensor Networks Guoliang Xing; Tian Wang; Zhihui Xie; Weijia Jia

    E-Print Network [OSTI]

    without trav- eling long distances, which can achieve a desirable balance between network energy saving Xie; Weijia Jia Department of Computer Science City University of Hong Kong 83 Tat Chee Ave., Kowloon that significant energy saving can be achieved in wireless sensor networks by using mo- bile elements (MEs) capable

  12. Energy-efficient adaptive wireless network design Paul J.M. Havinga, Gerard J.M. Smit, Martinus Bos

    E-Print Network [OSTI]

    Havinga, Paul J.M.

    Energy-efficient adaptive wireless network design Paul J.M. Havinga, Gerard J.M. Smit, Martinus Bos.bos}@cs.utwente.nl Abstract Energy efficiency is an important issue for mobile computers since they must rely on their batteries. We present an energy-efficient highly adaptive architecture of a network interface and novel data

  13. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 13, NO. 9, SEPTEMBER 2014 5043 Multiuser Cognitive Relay Networks: Joint Impact

    E-Print Network [OSTI]

    Elkashlan, Maged

    spectrum for the next generation wireless communication sys- tems [1]­[3]. In a cognitive radio network, the secondary user is allowed to occupy the licensed spectrum of the primary user in the underlay, overlay Terms--Cognitive radio, maximal ratio combining, mul- tiuser scheduling, relay networks. I. INTRODUCTION

  14. Abstract--Multi-hop wireless networks have the potential to dramatically reduce the cost of deploying communication

    E-Print Network [OSTI]

    Ward, Paul A.S.

    of deploying communication infrastructure. However, the nature of this technology limits the capacity of radio-hop wireless networks. Given the inherent interference of multi-hop transmissions in a single radio channel is that nodes are placed within radio range of each other and they automatically form a network. This eliminates

  15. Energy Aware Self-Organizing Density Management in Wireless Sensor Networks

    E-Print Network [OSTI]

    Merrer, Erwan Le; Kermarrec, Anne-Marie; Viana, Aline; Bertier, Marin

    2008-01-01T23:59:59.000Z

    Energy consumption is the most important factor that determines sensor node lifetime. The optimization of wireless sensor network lifetime targets not only the reduction of energy consumption of a single sensor node but also the extension of the entire network lifetime. We propose a simple and adaptive energy-conserving topology management scheme, called SAND (Self-Organizing Active Node Density). SAND is fully decentralized and relies on a distributed probing approach and on the redundancy resolution of sensors for energy optimizations, while preserving the data forwarding and sensing capabilities of the network. We present the SAND's algorithm, its analysis of convergence, and simulation results. Simulation results show that, though slightly increasing path lengths from sensor to sink nodes, the proposed scheme improves significantly the network lifetime for different neighborhood densities degrees, while preserving both sensing and routing fidelity.

  16. Backbone Discovery In Thick Wireless Linear Sensor Networks

    E-Print Network [OSTI]

    Wu, Jie

    , lower energy consumption, as well as larger storage and communication capacities. In addition and provided a classification and motivation for designing networking protocols that can take advantage, energy consumption, and network lifetime. In this paper, we provide a topology discovery protocol

  17. APAWSAN: Actor Positioning for Aerial Wireless Sensor and Actor Networks

    E-Print Network [OSTI]

    Turgut, Damla

    to be autonomous during deployment. The recent advances in development of small unmanned aerial vehicles (UAVs stations can improve network performance measures such as energy consumption and traffic load balancing vehicles (UAVs) with built in sensors made it possible to deploy aerial sensor and actor networks

  18. Truthful resource management in wireless ad hoc networks

    E-Print Network [OSTI]

    Cai, Jianfeng

    2005-11-01T23:59:59.000Z

    the truthful resource management that induces network nodes to reveal true information and stimulate cooperation. We propose the Transmission Power Recursive Auction Mechanism routing pro- tocol (TEAM) and the Truthful Topology Control mechanism (TRUECON...

  19. Throughput Analysis of Wireless Ad-Hoc Cognitive Radio Networks

    E-Print Network [OSTI]

    Banaei, Armin

    2014-04-25T23:59:59.000Z

    is independent of the primary frequency bandwidths and usage statistics; otherwise, they follow water-filling-like strategies. Next, we study the asymptotic performance of two multi-hop overlaid ad-hoc networks that utilize the same temporal, spectral...

  20. Fuzzy Logic Control Based QoS Management in Wireless Sensor/Actuator Networks

    E-Print Network [OSTI]

    Xia, Feng; Sun, Youxian; Tian, Yu-Chu

    2008-01-01T23:59:59.000Z

    Wireless sensor/actuator networks (WSANs) are emerging rapidly as a new generation of sensor networks. Despite intensive research in wireless sensor networks (WSNs), limited work has been found in the open literature in the field of WSANs. In particular, quality-of-service (QoS) management in WSANs remains an important issue yet to be investigated. As an attempt in this direction, this paper develops a fuzzy logic control based QoS management (FLC-QM) scheme for WSANs with constrained resources and in dynamic and unpredictable environments. Taking advantage of the feedback control technology, this scheme deals with the impact of unpredictable changes in traffic load on the QoS of WSANs. It utilizes a fuzzy logic controller inside each source sensor node to adapt sampling period to the deadline miss ratio associated with data transmission from the sensor to the actuator. The deadline miss ratio is maintained at a pre-determined desired level so that the required QoS can be achieved. The FLC-QM has the advantag...

  1. Radio Resource Management for Green Wireless Networks Cristina Comaniciu

    E-Print Network [OSTI]

    Mandayam, Narayan

    , an auctioning strategy is proposed for cellular networks that ensures net energy savings. The pricing scheme propose an auction based pricing system that incentivizes both parties to cooperate for energy savings is to bid their true valuation of their energy resources, and overall effective energy gains occur under

  2. Wireless Sensor Networks in the Area of Medical

    E-Print Network [OSTI]

    Narasayya, Vivek

    by the nodes. WSNs are currently at the center of many research projects in a range of application areas, this research will focus on small networks to be used in the medical field where performance & reliability cost, low maintenance ­ Energy-efficient ­ Small form factor, unobtrusive · Applications ­ Industrial

  3. Class-based Bandwidth Management in Heterogeneous Wireless Networks

    E-Print Network [OSTI]

    Sreenan, Cormac J.

    function of band- width, packet loss, delay, and energy information using integer linear programming}@cs.ucc.ie 2 Electronics and Electrical Communications Dept., Cairo University, Egypt azahran, utility-based optimisation of network selection and resource allocation for clients of different classes

  4. Distributed Interference Compensation for Multi-channel Wireless Networks

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    to maximize its net benefit (utility minus cost), subject to a total power constraint. We consider two to the unique globally optimal power allocation for a class of concave user utility functions. When the utility power across users and channels to maximize total network utility is This work was supported

  5. Resilient Event Detection in Wireless Sensor Networks Angelika Herbold1

    E-Print Network [OSTI]

    Bulusu, Nirupama

    , Nirupama Bulusu3 and Sanjay Jha4 1 Western Washington University, USA 2 ENSEIRB, France 3 Systems Software University of New South Wales, Australia and National ICT Australia Limited, Randwick, Australia herbola2@cc between nodes is loss prone and a major energy consumer[4], and the networks are tightly coupled

  6. Optimized Stateless Broadcasting in Wireless Multi-hop Networks

    E-Print Network [OSTI]

    Braun, Torsten

    not require any transmissions of control messages, it conserves critical network resources such as battery power and bandwidth. Local optimality is achieved by applying a principle of Dynamic For- warding Delay (DFD) which delays the transmissions dynamically and in a completely distributed way at the receiving

  7. Distributed Dynamic Clustering Algorithm in Uneven Distributed Wireless Sensor Network

    E-Print Network [OSTI]

    the sensor networks energy efficient [3][4][5]. This helps to increase the lifetime of the sensor nodes and energy efficient routing has been presented in recent research literature [1]-[16]. In [1] an intelligent energy efficient de- ployment algorithm for cluster based WSNs is described, in which the sensor node

  8. ENERGY EFFICIENT ROUTING IN WIRELESS SENSOR NETWORKS Curt Schurgers

    E-Print Network [OSTI]

    Shihada, Basem

    the integration of communications, sensors and signal processing all together in one low-cost package. It is now feasible to fabricate ultra-small sensor nodes that can be scattered on the battlefield to gather strategic towards localized algorithms [1][2]. Due to the large number of sensors, network-scale interaction

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

    E-Print Network [OSTI]

    Graham, Nick

    2011-583 Sherin Abdel Hamid Hossam Hassanein Glen Takahara Telecommunications Research Lab (TRL) School, the four aforementioned network paradigms share some commonalities in terms of their routing functions communication refers to the use of untethered communication (e.g. infrared, acoustic, or radio frequency signals

  10. E-Print Network 3.0 - ad hoc wireless Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    wireless Search Powered by Explorit Topic List Advanced Search Sample search results for: ad hoc wireless Page: << < 1 2 3 4 5 > >> 1 Sum-of-Sinusoid channel models for wireless...

  11. 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, ...

  12. A congestion control scheme for wireless sensor networks

    E-Print Network [OSTI]

    Xiong, Yunli

    2005-08-29T23:59:59.000Z

    - gestion. For wired networks like INTERNET, there are mixed links with di erent bandwidths. The node with the lowest bandwidth along a path from the source to the destination is called the bottleneck. Usually, congestion occurs in the bottleneck since..., packet loss cannot be used to detect con- gestion. In WSN, corruption and collision will cause packets to be dropped. Besides, node failure due to energy depletion could also result in packet loss. Combining information on packet loss and latency can...

  13. Improving spectrum sensing and multiuser cooperation in wireless cognitive radio networks.

    E-Print Network [OSTI]

    Song, Chengqi

    2010-01-01T23:59:59.000Z

    ??Nowadays wireless spectrum resource is more and more scarce because most wireless spectrum bands have been allocated to licensed users, however measurements show that many… (more)

  14. Effective algorithms and protocols for wireless networking: a topological approach

    E-Print Network [OSTI]

    Zhang, Fenghui

    2008-10-10T23:59:59.000Z

    algorithmic techniques in sensor networking research. The discussions with Dr. Chen and Dr. Jiang have been some of the most pleasant times during my PhD study. I am indebted to them now and in the future. I am immensely grateful to Dr. Donald Friesen, Dr.... Jennifer Welch, Dr. Sing-Hoi Sze and Dr. Catherine Yan. Their support and help were always present throughout the years. Dr. Friesen gave me valuable advice in all aspects of my Ph.D. life. Dr. Welch showed me how to be a researcher of excellence as well...

  15. Wireless Indoor Location Estimation Based on Neural Network RSS Signature Recognition (LENSR)

    SciTech Connect (OSTI)

    Kurt Derr; Milos Manic

    2008-06-01T23:59:59.000Z

    Location Based Services (LBS), context aware applications, and people and object tracking depend on the ability to locate mobile devices, also known as localization, in the wireless landscape. Localization enables a diverse set of applications that include, but are not limited to, vehicle guidance in an industrial environment, security monitoring, self-guided tours, personalized communications services, resource tracking, mobile commerce services, guiding emergency workers during fire emergencies, habitat monitoring, environmental surveillance, and receiving alerts. This paper presents a new neural network approach (LENSR) based on a competitive topological Counter Propagation Network (CPN) with k-nearest neighborhood vector mapping, for indoor location estimation based on received signal strength. The advantage of this approach is both speed and accuracy. The tested accuracy of the algorithm was 90.6% within 1 meter and 96.4% within 1.5 meters. Several approaches for location estimation using WLAN technology were reviewed for comparison of results.

  16. IEEE TRANS. AUTOM. CONTROL, SPECIAL ISSUE ON WIRELESS SENSOR AND ACTUATOR NETWORKS 1 Energy Optimized Topologies for Distributed

    E-Print Network [OSTI]

    . We formulate the combinatorial optimization problem of selecting such a minimal energy tree that yield energy efficient bidirectional span- ning trees and establish associated bounds on the optimalIEEE TRANS. AUTOM. CONTROL, SPECIAL ISSUE ON WIRELESS SENSOR AND ACTUATOR NETWORKS 1 Energy

  17. Time-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks with Unreliable Links

    E-Print Network [OSTI]

    Wu, Jie

    different paths. Their utility values are calculated in Section III-A and are listed in Fig. 5. waitTime-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks with Unreliable Links}@ustc.edu.cn Abstract--Utility-based routing is a special routing approach, which takes the reliability and transmission

  18. 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

  19. Energy-Efficient Data Aggregation Hierarchy for Wireless Sensor Networks Yuanzhu Peter Chen Arthur L. Liestman Jiangchuan Liu

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    Energy-Efficient Data Aggregation Hierarchy for Wireless Sensor Networks Yuanzhu Peter Chen Arthur study single-level aggregation and propose an Energy-Efficient Protocol for Aggregator Selec- tion (EPAS). Then, we generalize it to an aggregation hier- archy and extend EPAS to a Hierarchical Energy-Efficient

  20. Sparse Power Efficient Topology for Wireless Networks Xiang-Yang Li * Peng-Jun Wan * Yu Wang * Ophir Frieder

    E-Print Network [OSTI]

    in the constructed network topology is power efficient. Here a route is power eficient for unicasting if its energy. This is attractive for a single trans- We consider how to construct power eficient wireless ad mission of a node can graph, which can be constructed locally and eficiently. Firstly, we combine the Gabriel structure

  1. Energy Efficiency in Wireless Sensor Networks: a top-down survey Tifenn Rault, Abdelmadjid Bouabdallah, Yacine Challal

    E-Print Network [OSTI]

    Boyer, Edmond

    propose a new classification of energy-efficient mechanisms which in- tegrates the most recent techniquesEnergy Efficiency in Wireless Sensor Networks: a top-down survey Tifenn Rault, Abdelmadjid present a new classification of energy-conservation schemes found in the recent literature, followed

  2. Poster: Building a test-bed for wireless sensor networking for under-water oil and gas installations

    E-Print Network [OSTI]

    Zhou, Shengli

    . Initially we are building a laboratory in a large water tank. Later we will cooperate with an oil and gasPoster: Building a test-bed for wireless sensor networking for under-water oil and gas@ifi.uio.no 1 Introduction and background When the oil and gas industry moves its production facilities

  3. Wireless Sensor Network, 2010, 2, 441-446 doi:10.4236/wsn.2010.26055 Published Online June 2010 (http://www.SciRP.org/journal/wsn)

    E-Print Network [OSTI]

    Kuzmanov, Georgi

    (http://www.SciRP.org/journal/wsn) Copyright © 2010 SciRes. WSN Practical Considerations for Wireless and envisaged applications in Wireless Sensor Networks (WSNs). The WSN community that has formed over the years is divided into two sub-communities: the systems sub-community and the theory sub-community. However

  4. Student MAC Wireless Setup Guide Page 1 of 3

    E-Print Network [OSTI]

    authentication occurs for an account with Administrator rights. Step 5. The student-curtin wireless network to the Curtin Wireless network: Wireless network names There are two wireless networks operating at Curtin University. One is available for staff and the other for students. When you configure your network connection

  5. Staff MAC Wireless Setup Guide Page 1 of 3

    E-Print Network [OSTI]

    for an account with Administrator rights. Step 5. The staff-curtin wireless network is now connected as indicated to the Curtin Wireless network: Wireless network names There are two wireless networks operating at Curtin University. One is available for staff and the other for students. When you configure your network connection

  6. A network-coding based event diffusion protocol for wireless mesh networks

    E-Print Network [OSTI]

    Beraldi, Roberto

    of mobile and/or portable wireless devices (e.g. WiFi-enabled smart phones, mobile TV devices, etc.) which. The grid topology arising from a metropolitan deployment of a WMN [11], LeSubscribe [16]. However, while over a Manhattan like city model, see [1], in which mesh routers can be considered as approximately

  7. 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

  8. Green Radio Communications in a Heterogeneous Wireless Medium

    E-Print Network [OSTI]

    Zhuang, Weihua

    1 Green Radio Communications in a Heterogeneous Wireless Medium Muhammad Ismail and Weihua Zhuang wireless communication networks. Such energy efficient solutions are referred to as green communication efficient wireless communication networks, due to environmental, financial, and quality

  9. Challenges and Solutions for Location-based Routing in Wireless Sensor Networks with Complex Network Topology

    E-Print Network [OSTI]

    Won, Myounggyu

    2013-07-17T23:59:59.000Z

    Complex Network Topologies (CNTs)–network holes and cuts–often occur in practical WSN deployments. Many researchers have acknowledged that CNTs adversely affect the performance of location-based routing and proposed various CNT- aware location...

  10. Health Monitoring of Drive Connected Three-Phase Induction Motors ----- From Wired Towards Wireless Sensor Networks

    E-Print Network [OSTI]

    Xue, Xin

    2009-01-01T23:59:59.000Z

    5.7: Wireless sensor installation photo (a) accelerometer (5.7 Wireless sensor installation photo (a) accelerometer (b)set up (a) Photo (b) Diagram (b) Sensor: Three vibration

  11. MAC layer power management schemes for efficient energy- delay tradeoffs in wireless local area networks

    E-Print Network [OSTI]

    Sarkar, Mahasweta

    2006-01-01T23:59:59.000Z

    G. De Micheli, “Energy Efficient Design of Portable WirelessSimunic, “Energy Efficient System Design and Utilization”

  12. ApplicationSpecific Protocol Architectures for Wireless Networks Wendi Beth Heinzelman

    E-Print Network [OSTI]

    Heinzelman, Wendi

    for the degree of Doctor of Philosophy Abstract In recent years, advances in energy­efficient design and wireless

  13. Development and Flight Testing of a Wireless Avionics Network Based on the IEEE 802.11 Protocols

    E-Print Network [OSTI]

    Chilakala, Satish Kumar

    2008-03-18T23:59:59.000Z

    subsystems. New technologies, like ADS-B (Automatic Dependent Surveillance ? Broadcast), FIS-B (Flight Information Services ? Broadcast) are making aviation even safer and are improving air traffic management. This system allows pilots in the cockpit... implementation: ? Independent Basic Service Set (IBSS) or Ad-Hoc Mode ? Basic Service Set (BSS) or Infrastructure Mode ? Extended Service Set (ESS) 2.2.1. Independent Basic Service Set In a wireless network, Ad-Hoc mode, referred to as IBSS topology...

  14. The Maximum Stable Broadcast Throughput for Wireless Line Networks with Network Coding and

    E-Print Network [OSTI]

    Kuzmanovic, Aleksandar

    Engineering and Computer Science, Northwestern University, Evanston, IL 60208, USA Intelligent Automation Inc cluster size. We show that network coding improves the stable rate over plain retransmissions

  15. On the Network Lifetime of Wireless Sensor Networks Under Optimal Power Control

    E-Print Network [OSTI]

    Nasipuri, Asis

    significantly reduces energy wastage by utilizing sleep cycles of the radio. In such networks, overhearing causes significant energy losses, especially if the network density is high. Our calculations demonstrate are powered by fixed energy resources such as a battery, and consequently, their utility is limited

  16. QEMPAR: QoS and Energy Aware Multi-Path Routing Algorithm for Real-Time Applications in Wireless Sensor Networks

    E-Print Network [OSTI]

    Heikalabad, Saeed Rasouli; Nematy, Farhad; Rahmani, Naeim

    2011-01-01T23:59:59.000Z

    Enabling real time applications in wireless sensor networks requires certain delay and bandwidth which pose more challenges in the design of routing protocols. The algorithm that is used for packet routing in such applications should be able to establish a tradeoff between end to end delay parameter and energy consumption. In this paper, we propose a new multi path routing algorithm for real time applications in wireless sensor networks namely QEMPAR which is QoS aware and can increase the network lifetime. Simulation results show that the proposed algorithm is more efficient than previous algorithms in providing quality of service requirements of real-time applications.

  17. Abstract--The inherent many-to-one flow of traffic in Wireless Sensor Networks produces a skewed distribution of energy

    E-Print Network [OSTI]

    Radha, Hayder

    approaches aimed at balancing the consumption of energy in wireless networks are based on a linear distribution of energy consumption rates leading to the early demise of those sensors that are critical) it puts forward a new understanding of sensor network lifetime based on statistical measures, mean

  18. Video-centric network coding strategies for 4G wireless networks: an overview

    E-Print Network [OSTI]

    Montpetit, Marie-Jose

    The impact of Internet content and IP based television on networks is growing. Video is now ubiquitous in the home and on the street. It demands new approaches to video transmission to meet the growing traffic volume. This ...

  19. EM's Laboratory Supports Testing Wireless Technology in Secure...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    wireless transmitter, alarms and a backup power source. SRNL contracted with General Dynamics to develop components for the ultra-secure short range wireless network. During the...

  20. IEEE/ACM TRANSACTIONS ON NETWORKING 1 XORs in the Air: Practical Wireless Network

    E-Print Network [OSTI]

    .e., code) packets from different sources to increase the information content of each transmission. We show coding opportunities and benefits from them by forwarding multiple packets in a single transmission. COPE. This process requires 4 transmissions. Now consider a network coding approach. Alice and Bob send

  1. Improving energy efficiency via probabilistic rate combination in 802.11 multi-rate wireless networks

    E-Print Network [OSTI]

    Lui, John C.S.

    transmission. An alternative way to conserve energy is to apply power control [1­4]. A wireless node is allowedImproving energy efficiency via probabilistic rate combination in 802.11 multi-rate wireless in revised form 20 January 2009 Accepted 27 January 2009 Available online 6 February 2009 Keywords: Energy

  2. Drive-by-Wireless Teleoperation with Network QoS Adaptation

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    tele- operation of drive-by-wireless applications, which utilize energy concepts and impose an adaptation scheme for drive- by-wireless teleoperation of an electric vehicle. The performance variation due to the varying time delay and packet losses is investigated and catered for by using an adaptive gain scheduling

  3. 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

  4. Physical layer-aware wireless link layer protocols

    E-Print Network [OSTI]

    Vutukuru, Mythili

    2010-01-01T23:59:59.000Z

    With wireless devices becoming ubiquitous, the problem of designing high performance and reliable wireless networks is of great importance today. Wireless links are characterized by a rapidly varying channel, requiring ...

  5. Wireless energy transmission to supplement energy harvesters in sensor network applications

    SciTech Connect (OSTI)

    Farinholt, Kevin M [Los Alamos National Laboratory; Taylor, Stuart G [Los Alamos National Laboratory; Park, Gyuhae [Los Alamos National Laboratory; Farrar, Charles R [Los Alamos National Laboratory

    2010-01-01T23:59:59.000Z

    In this paper we present a method for coupling wireless energy transmission with traditional energy harvesting techniques in order to power sensor nodes for structural health monitoring applications. The goal of this study is to develop a system that can be permanently embedded within civil structures without the need for on-board power sources. Wireless energy transmission is included to supplement energy harvesting techniques that rely on ambient or environmental, energy sources. This approach combines several transducer types that harvest ambient energy with wireless transmission sources, providing a robust solution that does not rely on a single energy source. Experimental results from laboratory and field experiments are presented to address duty cycle limitations of conventional energy harvesting techniques, and the advantages gained by incorporating a wireless energy transmission subsystem. Methods of increasing the efficiency, energy storage medium, target applications and the integrated use of energy harvesting sources with wireless energy transmission will be discussed.

  6. Feedback, power control, and beamforming : methods for situational aware wireless networks

    E-Print Network [OSTI]

    Huang, Yichao

    2012-01-01T23:59:59.000Z

    Outage balancing in multiuser MISO networks: network dualityOutage balancing in multiuser MISO networks: network dualitywith partial feedback for MISO downlink transmission using

  7. IEEE Wireless Communications April 201230 1536-1284/12/$25.00 2012 IEEE USER COOPERATION IN WIRELESS NETWORKS

    E-Print Network [OSTI]

    Zhang, Yan

    systems, e.g., the Smart Grid [3]. In a cogni- tive radio network, the unlicensed secondary users (SUs and analyzed with respect to a new performance metric achievable throughput, which simultaneously considers

  8. E-Print Network 3.0 - argentine commercial origanum Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    statistics of the commercial fleet... ) Argentine hake CPUE in southwestern Atlantic Ocean, com- puted from 1978 commercial fishery statistics... of commercial den- sities of...

  9. 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

  10. Low-Rate Wireless Personal Area Network Coordinator Design and Implementation

    E-Print Network [OSTI]

    Zilic, Zeljko

    not been a single exception. My first electric motor, the vacuum wireless light, my turbine engine and many other devices have all been developed in exactly this way. -Nikola Tesla #12;i Abstract This thesis

  11. E-Print Network 3.0 - ad-hoc wireless environments Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Search Powered by Explorit Topic List Advanced Search Sample search results for: ad-hoc wireless environments Page: << < 1 2 3 4 5 > >> 1 Sum-of-Sinusoid channel models...

  12. Self-sustaining, efficient and forward-secure cryptographic constructions for Unattended Wireless Sensor Networks q

    E-Print Network [OSTI]

    Ning, Peng

    Self-sustaining, efficient and forward-secure cryptographic constructions for Unattended Wireless (ECC) based HaSAFSS (ECC-HaSAFSS) and self-SUstaining HaSAFSS (SU-HaS- AFSS). These schemes integrate

  13. 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 ...

  14. CogWnet: A Resource Management Architecture for Cognitive Wireless Networks

    E-Print Network [OSTI]

    Shihada, Basem

    of wireless spectrum. Its operating principle is based on building an integrated hardware and software and runs decision- making optimization algorithms to output optimal transmission parameters; and Policy decision- making, transmission parameters, policy enforcement. I. INTRODUCTION The demand for mobile

  15. Quality of new wireless network and its possibilities in the Japanese market

    E-Print Network [OSTI]

    Minajima, Suguru

    2012-01-01T23:59:59.000Z

    The 3.9G and 4G are the promising high-speed wireless technologies. With more companies from different industries, a new business environment will arise in years to come. The complex nature of interaction with other ...

  16. Equilibrium Analysis of Packet Forwarding Strategies in Wireless Ad Hoc Networks the Static Case

    E-Print Network [OSTI]

    Bencsáth, Boldizsár

    .8 - Mobile and Wireless Communications, Venice, Italy, Sep 23-25, 2003. c Lecture Notes of Computer Science based on different energy classes. In this paper, we study the problem of cooperation for the most basic

  17. 37th Telecommunications Policy Research Conference, Sept. 2009 The Business Case of a Nationwide Wireless Network that Serves both Public

    E-Print Network [OSTI]

    Peha, Jon M.

    of public safety. In 2007, the U.S. Federal Communications Commission tried to establish a public-private partnership whereby a commercial partner would commit to serving public safety agencies in return for access agencies would be left out of such a nationwide network. Additionally, we find that urban areas opting

  18. Automating cross-layer diagnosis of enterprise 802.11 wireless networks

    E-Print Network [OSTI]

    Cheng, Yu-Chung

    2007-01-01T23:59:59.000Z

    burden falls to the network administrator who must manageunlikely to change. Network administrators simply can’t knowdesigned to alert network administrators about pervasive

  19. Not All Wireless Sensor Networks Are Created Equal: A Comparative Study On Tunnels

    E-Print Network [OSTI]

    Descriptors: C.2.1 [Computer-communication Networks]: Network architecture and design--Network topology is the motivation for a characterization of this unusual envir

  20. SWAP Project: Beyond the State of the Art on Harvested Energy-Powered Wireless Sensors

    E-Print Network [OSTI]

    Rossi, Michele

    -efficient paradigm of wireless sensor networks with the self-sustainable capabilities of harvesting systems. SWAP

  1. 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 ...

  2. Wireless, automated monitoring for potential landslide hazards

    E-Print Network [OSTI]

    Garich, Evan Andrew

    2007-09-17T23:59:59.000Z

    This thesis describes research efforts toward the development of a wireless sensor node, which can be employed in durable and expandable wireless sensor networks for remote monitoring of soil conditions in areas conducive to slope stability failures...

  3. 1100 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 23, NO. 5, MAY 2005 Energy Efficiency of Large-Scale Wireless Networks

    E-Print Network [OSTI]

    Zhao, Qing

    1100 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 23, NO. 5, MAY 2005 Energy Efficiency of large-scale wireless networks is presented. The radio model includes energy consumption of nodes at var- ious operating states. We analyze the total energy consumption of the proactive and the reactive

  4. Throughput-Delay Trade-off in Energy Constrained Wireless Networks Abbas El Gamal, James Mammen, Balaji Prabhakar, and Devavrat Shah

    E-Print Network [OSTI]

    Prabhakar, Balaji

    Throughput-Delay Trade-off in Energy Constrained Wireless Networks Abbas El Gamal, James Mammen for a given energy-per-bit scaling constraint. Further, using a trade-off scheme similar to Scheme 1 in [1], we obtain the following result. Theorem 1. The optimal trade-off between energy-per-bit and delay

  5. Cognitive Radio: A path in the Evolution of Public Wireless Networks The concept of cognitive radio has arisen as a generalization of the principle of multiple

    E-Print Network [OSTI]

    Jafar, Syed A.

    Cognitive Radio: A path in the Evolution of Public Wireless Networks The concept of cognitive radio layer including fixed modulation and error control coding algorithms. The cognitive radio is supposed of the TV spectrum being opened up to new uses. From this standpoint we may view cognitive radio

  6. 1. Birru, D., C.-T. Chou, and A. Seyedi, "Coordination in Wireless Networks Having Devices with Different Physical Layer Transmission Schemes," US Patent 8233505, Jul. 31, 2012.

    E-Print Network [OSTI]

    Pattanaik, Sumanta N.

    Patents 1. Birru, D., C.-T. Chou, and A. Seyedi, "Coordination in Wireless Networks Having Devices with Different Physical Layer Transmission Schemes," US Patent 8233505, Jul. 31, 2012. 2. Birru, D. and A. Seyedi, "Cost-Effective Preamble Structure for High-Speed Communication of Packetized System," US Patent 8

  7. An EM Interference-Aware Routing Algorithm for Wireless Sensor Networks in Clinical Environments Gowdemy Rajalingham, Thanh-Ngon Tran, Quang-Dung Ho, and Tho Le-Ngoc

    E-Print Network [OSTI]

    Barthelat, Francois

    protocol that attempts to reduce electromagnetic interference (EMI) introduced., "Electromagnetic Interference aware Adaptive Routing for Wireless Communication Networks in electromagnetic- interference-sensitive medical environments," Annali dell'Istituto Superiore di

  8. Adaptive RTT-driven Transport-layer Flow and Error Control Protocol for QoS Guaranteed Image Transmission over Multi-hop Underwater Wireless Networks: Design, Implementation, and Analysis

    E-Print Network [OSTI]

    Li, Jiahao

    2013-12-09T23:59:59.000Z

    With the rapid advances in data transmission over various advanced underwater acoustic networks, it is important to develop the efficient protocol to obtain a high data-rate with Quality of Service (QoS) guarantee requirements for acoustic wireless...

  9. Optimal Wake-up Scheduling for PSM Delay Minimization in Mobile Wireless Networks

    E-Print Network [OSTI]

    Jagannatham, Aditya K.

    -theoretic bound to characterize the minimum average wake-up delay for a maximum threshold on the energy comprising of alternating sleep and wake-up intervals leads to substantial energy conservation in wireless the proposed approach with the existing schemes that improve the delay performance of the standard Binary

  10. Cover sheet Real-time health monitoring of historic buildings with wireless sensor networks

    E-Print Network [OSTI]

    Picco, Gian Pietro

    thanks to its customized hardware and dedicated software. The whole system is reliable and energy efficient. The comparison between the acquired measurements and simulated numerical results shows good. In our paper, a customized wireless node integrated with highly reusable and easily extensible software

  11. Energy-efficient wireless communication net-work design is an important and challenging

    E-Print Network [OSTI]

    methodology achieves over traditional design methodologies, and the trade- off between energy consumption communication system and understand the trade-off between performance and energy consumption in each individualABSTRACT Energy-efficient wireless communication net- work design is an important and challenging

  12. An Opportunistic Scheduler To Balance Performance Measures and Energy Consumption in Wireless Networks: Design and Implementation

    E-Print Network [OSTI]

    Yau, David K Y

    An Opportunistic Scheduler To Balance Performance Measures and Energy Consumption in Wireless scheduler that can balance the energy consumption by an idle system and the performance of motion prediction Chinese University of Hong Kong Shatin, Hong Kong cslui@cse.cuhk.edu.hk Abstract Energy management

  13. An Optimal Energy Allocation Algorithm for Energy Harvesting Wireless Sensor Networks

    E-Print Network [OSTI]

    Wong, Vincent

    by enabling the wireless sensor nodes to replenish energy from ambient sources, such as solar, wind conservation is not the prime design issue. Second, the energy management strategy for an energy harvesting WSN needs to take into account the energy replenishment process. For example, an overly conservative energy

  14. Market-based computational task assignment within autonomous wireless sensor networks

    E-Print Network [OSTI]

    Lynch, Jerome P.

    Department of Electrical Engineering and Computer Science2 University of Michigan Ann Arbor, Michigan, USA a wireless communication link instead of a data cable between sensor and data repository has led, which can be manufactured for a few hundred dollars per sensing node [3], typically collocate

  15. Efficient Strategies for Collecting Data from Wireless Sensor Network Nodes using Mobile

    E-Print Network [OSTI]

    Isler, Ibrahim Volkan

    solutions to the following problems. (i) From the static node's perspective: given the stochastic nature the robot's perspective: given the stochastic nature of the wireless link quality, what is an energy nodes also act as relays. In certain applications, the underlying environment is very large and sam

  16. Design Considerations for a Large-Scale Wireless Sensor Network for Substation Monitoring

    E-Print Network [OSTI]

    Nasipuri, Asis

    University City Blvd. Charlotte, NC 28223 Luke Van der Zel and Bienvenido Rodriguez Substations Group EPRI of failure conditions. This paper presents the results of an EPRI funded project on an experimental wireless was a contractor for the EPRI project. There were multiple utility members in the EPRI project. This paper focusses

  17. A Process Algebraic Framework for Estimating the Energy Consumption in Ad-hoc Wireless Sensor Networks

    E-Print Network [OSTI]

    Rossi, Sabina

    A Process Algebraic Framework for Estimating the Energy Consumption in Ad-hoc Wireless Sensor their connecti- vity properties and their performances in terms of energy consumption, throughput and other and the evaluation or esti- mation of energy consumption in ad-hoc WSNs. The frame- work is based on a variant

  18. Temperature Control Framework Using Wireless Sensor Networks and Geostatistical Analysis for Total Spatial Awareness

    E-Print Network [OSTI]

    Fan, Jeffrey

    cooling and heating mechanisms in buildings at every location for improved user comfort. Keywords ­ Smart presents a novel framework for intelligent temperature control in smart homes using Wireless Sensor Analysis; Classical Variography; Ordinary Point Kriging I. INTRODUCTION Research involving smart homes has

  19. Poster Abstract: Selective Gossiping for SVM Training in Wireless Sensor Networks

    E-Print Network [OSTI]

    Tsakalides, Panagiotis

    energy efficient, distributed selec- tive gossip algorithms train SVMs equally well with energy that can perform tasks with low energy consumption poses some interesting signal processing challenges that Support Vector Machines (SVMs) provide for the decision boundaries, to perform classification in wireless

  20. A measurement-based analysis of the interaction among MAC, network and application layers in wireless sensor networks

    E-Print Network [OSTI]

    Malesci, Umberto

    2005-01-01T23:59:59.000Z

    There have been a number of recent proposals for link and network-layer protocols in the sensor networking literature, each of which claims to be superior to other approaches. However, a proposal for a networking protocol ...

  1. 1. Shielding against Electromagnetic Interference With telecommunication networks connecting wireless devices around the globe, there

    E-Print Network [OSTI]

    Rincon-Mora, Gabriel A.

    #12;1. Shielding against Electromagnetic Interference With telecommunication networks connecting electromagnetic interference (EMI) across the airwaves. These communication networks are ubiquitous and dynamic

  2. Power Conservation in the Network Stack of Wireless Sensors Michael De Rosa

    E-Print Network [OSTI]

    Goldstein, Seth Copen

    , energy efficient design, network protocols #12;Table of Contents Introduction 1 Hardware 1 Software 2

  3. 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).

  4. E-Print Network 3.0 - advanced research network Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dartmouth Collection: Computer Technologies and Information Sciences 4 EEL6935: Wireless Ad Hoc Networks Spring 2007 Summary: EEL6935: Wireless Ad Hoc Networks Spring 2007 Catalog...

  5. Time-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks withDuty-Cycle Wireless Sensor Networks withDuty-Cycle Wireles

    E-Print Network [OSTI]

    Wu, Jie

    Time-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing inTime-Sensitive Utility-Based Routing in Duty-Cycle Wireless Sensor Networks with TEMPLE UNIVERSITY #12;Introduction: utility-based routingIntroduction: utility-based routing

  6. Exploiting energy-saving potential in heterogeneous networks Lefteris Mamatas* and Vassilis Tsaoussidis

    E-Print Network [OSTI]

    Tsaoussidis, Vassilis

    has been devoted to energy efficient design of the entire network protocol stack of wireless networks

  7. Energy Efficiency in Wireless Networks - Impact of Adaptive Radio Unit Activation.

    E-Print Network [OSTI]

    Hedayati, Mozhgan

    2010-01-01T23:59:59.000Z

    ??Energy consumption in mobile networks, e.g. 3G networks, may be a substantial part of an operator's expenses. A large part of the total energy of… (more)

  8. New advances in designing energy efficient time synchronization schemes for wireless sensor networks

    E-Print Network [OSTI]

    Noh, Kyoung Lae

    2009-05-15T23:59:59.000Z

    presents significant energy saving. Finally, this dissertation introduces a novel adaptive time synchronization protocol, named the Adaptive Multi-hop Timing Synchronization (AMTS). According to the current network status, AMTS optimizes crucial network...

  9. Optimal Stochastic Routing in Low Duty-Cycled Wireless Sensor Networks

    E-Print Network [OSTI]

    Liu, Mingyan

    and not easily renewable. As a result, energy efficient design of such networks at all levels, from material

  10. Energy efficient strategies for wireless sensor networks with varying connectivity properties

    E-Print Network [OSTI]

    Kam, Clement

    2010-01-01T23:59:59.000Z

    energy efficiency are most applicable. To summarize the differences between types of networks, we present a classification

  11. ActiveSTB: an efficient wireless resource manager in home networks

    E-Print Network [OSTI]

    Hall, Varrian Durand

    2009-05-15T23:59:59.000Z

    is a major concern for the transport of stored video. In our study, a set-top box is the access point between the internet and a home network. Our main goal is to design a set-top box capable of performing network flow control in a home network...

  12. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 1 An In-Network Querying Framework for Wireless

    E-Print Network [OSTI]

    Demirbas, Murat

    -network querying in a distributed, lightweight, resilient and energy-efficient manner. We address these challenges by exploiting location information and geometry of the network and propose an in-network querying framework our framework to achieve complex range-based querying. To this end, we use a multi

  13. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 1 An In-Network Querying Framework for Wireless

    E-Print Network [OSTI]

    Demirbas, Murat

    -network querying in a distributed, lightweight, resilient and energy-efficient manner. We address these challenges by exploiting location information and geometry of the network and propose an in-network querying framework of inquiries, we further extend our framework to achieve complex range-based querying. To this end, we use

  14. area network wlan: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    wireless network, 802.11, WLAN, security, scalability. 1 Keren Tan; Chris Mcdonald; Bennet Vance; Chrisil Arackaparambil; Sergey Bratus; David Kotz 266 A 60 GHz Wireless Home...

  15. Embracing interference in wireless systems

    E-Print Network [OSTI]

    Gollakota, Shyamnath (Shyamnath Venkata Satyasrisai)

    2013-01-01T23:59:59.000Z

    The wireless medium is a shared resource. If nearby devices transmit at the same time, their signals interfere, resulting in a collision. In traditional networks, collisions cause the loss of the transmitted information. ...

  16. Random intersection graphs and their applications in security, wireless communication, and social networks

    E-Print Network [OSTI]

    Zhao, Jun; Gligor, Virgil

    2015-01-01T23:59:59.000Z

    Random intersection graphs have received much interest and been used in diverse applications. They are naturally induced in modeling secure sensor networks under random key predistribution schemes, as well as in modeling the topologies of social networks including common-interest networks, collaboration networks, and actor networks. Simply put, a random intersection graph is constructed by assigning each node a set of items in some random manner and then putting an edge between any two nodes that share a certain number of items. Broadly speaking, our work is about analyzing random intersection graphs, and models generated by composing it with other random graph models including random geometric graphs and Erd\\H{o}s-R\\'enyi graphs. These compositional models are introduced to capture the characteristics of various complex natural or man-made networks more accurately than the existing models in the literature. For random intersection graphs and their compositions with other random graphs, we study properties su...

  17. Brief Contributions________________________________________________________________________________ Topology Control of Ad Hoc Wireless

    E-Print Network [OSTI]

    Wang, Lusheng

    ________________________________________________________________________________ Topology Control of Ad Hoc Wireless Networks for Energy Efficiency Maggie X. Cheng, Member, IEEE, Mihaela, Yinfeng Xu, and Ding-Zhu Du Abstract--In ad hoc wireless networks, to compute the transmission power-complete problem. In this paper, we consider the approximated solutions for the MENC problem in ad hoc wireless

  18. E-Print Network 3.0 - alternative products commercially Sample...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Energy Commission Collection: Energy Storage, Conversion and Utilization 6 Hawaii Bioenergy Master Plan Stakeholder Meeting Summary: commercially in Hawaii Orange - Under...

  19. E-Print Network 3.0 - anodized-hydrothermally treated commercially...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    study of living... of commercial, biomedical or industrial use from the organisms of the ocean. Marine Biotechnology BL4255 Dr Val Source: Brierley, Andrew - Gatty Marine...

  20. Analysis of Power-Aware Buffering Schemes in Wireless Sensor Networks

    E-Print Network [OSTI]

    Chen, Shigang

    problem in battery-powered sensor networks, focusing on the fixed-size and fixed-interval buffering parameters of radio module and memory bank, data arrival rate, and data-size variation, thereby providing operational requirement of battery-powered sensor networks [

  1. Min-Max Congestion in Interference-Prone Wireless Mesh Networks

    E-Print Network [OSTI]

    Martin, Ralph R.

    can prevent further deployment if the network performance does not meet users' expectations in environmental noise. Therefore, developing efficient algorithms to enhance the network uti- lization: which paths should the packets follow? What is the impact on on-going data transmissions? What

  2. EQR: A New Energy-Aware Query-based Routing Protocol for Wireless Sensor Networks

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    the consumption of energy throughout the network. In general terms, energy saving protocols are not necessarily to efficiently sup- port the exchange of information--basically by saving processing overhead and thus energy, energy savers and energy balancers. The former try to decrease the energy consumption of the network

  3. Design & implementation of a wireless sensor prototyping kit

    E-Print Network [OSTI]

    Hope, Jamison Roger

    2005-01-01T23:59:59.000Z

    In recent years, wireless sensor networks (WSN) has become an active area of research among computer scientists. In this work, JONA, a prototyping kit for wireless sensors, will be described. The intention of this kit is ...

  4. Radio frequency circuits for wireless receiver front-ends

    E-Print Network [OSTI]

    Xin, Chunyu

    2005-11-01T23:59:59.000Z

    The beginning of the 21st century sees great development and demands on wireless communication technologies. Wireless technologies, either based on a cable replacement or on a networked environment, penetrate our daily life more rapidly than ever...

  5. Low Energy Wireless Body-Area Networks for Fetal ECG Telemonitoring via the Framework of Block Sparse Bayesian Learning

    E-Print Network [OSTI]

    Zhang, Zhilin; Makeig, Scott; Rao, Bhaskar D

    2012-01-01T23:59:59.000Z

    Fetal ECG (FECG) telemonitoring is an important branch in telemedicine. The design of a telemonitoring system via a low-power wireless body-area network for ambulatory use is highly desirable. As an emerging technique, compressed sensing (CS) shows great promise in compressing data with low power consumption. However, due to some specific characteristics of FECG recordings such as non-sparsity and strong noise contamination, current CS algorithms generally fail in this application. In this work we utilize the block sparse Bayesian learning (bSBL) framework, a recently developed framework solving the CS problems. To illustrate the ability of the bSBL methods, we apply it to two representative FECG datasets. In one dataset the fetal heartbeat signals are visible, while in the other dataset are barely visible. The experiment results show that the bSBL framework is capable of compressing FECG raw recordings and successfully reconstructing them. These successes rely on two unique features of the bSBL framework; on...

  6. Scalable Coordination for Wireless Sensor Networks: Self-Configuring Localization Systems

    E-Print Network [OSTI]

    Heidemann, John

    networks: tuning density to trade operational quality against lifetime; using multi- ple sensor modalities, water, soil, chemistry); condition based maintenance; smart spaces; military surveillance; preci- sion or urban locations). The above requirements impose substantial physical constraints at both the node

  7. Relay node placement in large scale wireless sensor networks Jian Tang*, Bin Hao, Arunabha Sen

    E-Print Network [OSTI]

    Tang, Jian "Neil"

    efficient design is needed for prolonging network lifetime. Computer Communications 29 (2006) 490­501 www for a fairly short period of time if operated at high transmission power levels. As a consequence, energy

  8. A Hybrid Testbed for a Seamless Combination of Wireless Sensor Networks and OMNeT++ Simulations

    E-Print Network [OSTI]

    Turau, Volker

    to control heliostats of a solar power plant. For this purpose a base station ei- ther communicates these execution environments can seamlessly be interconnected to a virtual, homogeneous network. This provides

  9. Throughput Scaling in Random Wireless Networks: A Non-Hierarchical Multipath Routing Strategy

    E-Print Network [OSTI]

    Liu, Mingyan

    an extended (i.e., geographically expanding) net- work with approximately n randomly distributed nodes to remain bounded, even as the network expands. I. INTRODUCTION The problem of asymptotic scalability

  10. Water Distribution System Monitoring and Decision Support Using a Wireless Sensor Network

    E-Print Network [OSTI]

    Allen, Michael

    Water distribution systems comprise labyrinthine networks of pipes, often in poor states of repair, that are buried beneath our city streets and relatively inaccessible. Engineers who manage these systems need reliable ...

  11. Design and Analysis of Opportunistic MAC Protocols for Cognitive Radio Wireless Networks

    E-Print Network [OSTI]

    Su, Hang

    2012-02-14T23:59:59.000Z

    utilization in cognitive-radio based DSA networks. There are M licensed channels. The ON and OFF states of PUs operating at difierent licensed channels are unsynchronized. : : : : : : : : : : : : : : : : : : : : : : : : : : : : : 68 22 The ON/OFF channel...

  12. Adaptive Resource Allocation for Statistical QoS Provisioning in Mobile Wireless Communications and Networks

    E-Print Network [OSTI]

    Du, Qinghe

    2012-02-14T23:59:59.000Z

    erasure-correction coding scheme for the packet-level multicast, where the erasure-correction code is dynamically constructed based on multicast receivers’ packet-loss statuses, to achieve high error-control efficiency in mobile multicast networks...

  13. Energy Aware Node Selection for Cluster-based Data Accuracy Estimation in Wireless Sensor Networks

    E-Print Network [OSTI]

    Karjee, Jyotirmoy

    2011-01-01T23:59:59.000Z

    The main objective of this paper is to reduce the number of sensor nodes by estimating a trade off between data accuracy and energy consumption for selecting nodes in probabilistic approach in distributed networks. Design Procedure/Approach: Observed data are highly correlated among sensor nodes in the spatial domain due to deployment of high density of sensor nodes. These sensor nodes form non-overlapping distributed clusters due to high data correlation among them. We develop a probabilistic model for each distributed cluster to perform data accuracy and energy consumption model in the network. Finally we find a trade off between data accuracy and energy consumption model to select an optimal number of sensor nodes in each distributed cluster. We also compare the performance for our data accuracy estimation model with information accuracy model for each distributed cluster in the network. Practical Implementation: Measuring temperature in physical environment and measuring moisture content in agricultural f...

  14. Routing in hybrid networks

    E-Print Network [OSTI]

    Gupta, Avinash

    2001-01-01T23:59:59.000Z

    Hybrid networks are networks that have wired as well as wireless components. Several routing protocols exist for traditional wired networks and mobile ad-hoc networks. However, there are very few routing protocols designed for hybrid networks...

  15. Scalable Coordination for Wireless Sensor Networks: SelfConfiguring Localization Systems

    E-Print Network [OSTI]

    Heidemann, John

    networks: tuning density to trade operational quality against lifetime; using multi­ ple sensor modalities, water, soil, chemistry); condition based maintenance; smart spaces; military surveillance; preci­ sion) or inhospitable terrain (toxic or urban locations). The above requirements impose substantial physical constraints

  16. IMPLEMENTATION OF TEAN-SLEEP FOR WIRELESS SENSOR NETWORKS Jesus Jaquez, David Valencia, Manikanden Balakrishnan,

    E-Print Network [OSTI]

    Johnson, Eric E.

    , storage but most importantly in energy. When a node's energy is exhausted, the node can no longer provide. A node is able to save energy while idle by sleeping. Topology and Energy Adaptive, Non-synchronous (TEAN) sleep provides the nodes in a network a mechanism to save energy by sleeping while also keeping

  17. Energy Management for Time-Critical Energy Harvesting Wireless Sensor Networks

    E-Print Network [OSTI]

    Aydin, Hakan

    their power consumption. The objective is to maximize the minimum energy reserve over any node in the network algorithms yield significantly higher energy reserves than the approaches without speed and power control. 1 such as solar, wind or wa- ter flow, WSN nodes potentially have perpetual energy supply. However, given

  18. A MAC Protocol for Wireless Ad Hoc Networks with Power Control

    E-Print Network [OSTI]

    is an important factor in ad hoc networks. One way to conserve energy supported by the standard [1] is the power-hop neighborhood. Through many simulations we show that our algorithm outperforms the IEEE 802.11 standard, also IEEE 802.11 [1] has become the standard for Wire- less LAN's both in infrastructure and in ad hoc mode

  19. Broadcasting and topology control in wireless ad hoc networks Xiang-Yang Li

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    that can approximate the minimum energy broadcast tree for non-adjustable power case. For adjustable power case, no localized methods can approximate the minimum energy broadcast tree within a constant factor networks. We discuss two energy models that could be used for broadcast: one is non-adjustable power

  20. Lifetime Approximation Schemes Allow Multicast Algorithm with Linear Message Complexity in Wireless Sensor Networks

    E-Print Network [OSTI]

    Guo, Minyi

    residual battery energy based on the observation that long-lived multicast / broadcast trees should consume information in order to construct an energy efficient multicast tree. Sometimes, this centralized approach Sensor Networks Mianxiong Dong, Song Guo and Minyi Guo School of Electrical and Computer Engineering