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Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Network coded wireless architecture  

E-Print Network [OSTI]

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 ...

Katti, Sachin Rajsekhar

2008-01-01T23:59:59.000Z

2

Video transmission over wireless networks  

E-Print Network [OSTI]

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...

Zhao, Shengjie

2005-08-29T23:59:59.000Z

3

Wireless Sensor Network Fundamentals  

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

Wireless Sensor Network Fundamentals Wireless Sensor Network Fundamentals Speaker(s): Steven Lanzisera Date: February 8, 2010 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Kevin Kircher Wireless sensor networks have been promising to provide easy data collection and control capability to applications ranging from scientific data collection, disaster recover, national security, and more. The user experience, however, has been filled with confusing terminology, complicated systems, and a lack of interoperability between vendors. Users with a background in the technology and fundamentals are better able to understand system capabilities, make decisions, and end up with a network that meets their needs. Although a sufficient coverage of this topic is at least a semester course, the goal of this talk is to give a brief

4

Network coding for robust wireless networks  

E-Print Network [OSTI]

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

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

2012-01-01T23:59:59.000Z

5

Handoff Notification in Wireless Hybrid Networks  

Science Journals Connector (OSTI)

Hybrid networks composed of a wireless infrastructure network providing Internet access to an underlying...

Guillaume Chelius; Claude Chaudet

2005-01-01T23:59:59.000Z

6

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

E-Print Network [OSTI]

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 ...

Dai, Lillian Lei, 1978-

2008-01-01T23:59:59.000Z

7

Control over Wireless NetworksControl over Wireless Networks Karl Henrik Johansson  

E-Print Network [OSTI]

Control over Wireless NetworksControl over Wireless Networks Karl Henrik Johansson School of Electrical Engineering Royal Institute of Technology Stockholm, Sweden 25th Benelux Meeting on Systems, 2006 Wireless control systemWireless control system Sensors Controllers Actuators A collection

Johansson, Karl Henrik

8

Utilizing Solar Power in Wireless Sensor Networks  

Science Journals Connector (OSTI)

Sensor networks are designed especially for deploymentin adverse and non-accessible areas without a fixed infrastructure.Therefore, energy conservation plays a crucialrole for these networks. We propose to utilize solar powerin wireless sensor networks, ...

Thiemo Voigt; Hartmut Ritter; Jochen Schiller

2003-10-01T23:59:59.000Z

9

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

E-Print Network [OSTI]

Wireless Networks: Fundamentals and Applications Karl H. Johansson Electrical Engineering, Royal Institute4/9/2008 1 Closing the Loop over Wireless Networks:Closing the Loop over Wireless Networks: Fundamentals and Applications Karl H. Johansson Electrical Engineering, Royal Institute of Technology Stockholm

Johansson, Karl Henrik

10

Monitoring Energy Consumption In Wireless Sensor Networks  

E-Print Network [OSTI]

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

Turau, Volker

11

a Wireless Sensor Network for Environmental Monitoring  

E-Print Network [OSTI]

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

Gburzynski, Pawel

12

Active Scheme to Measure Throughput of Wireless Access Link in Hybrid Wired-Wireless Network  

E-Print Network [OSTI]

, at the wireless The authors are with Networking Research Laboratory, Department of Electrical and Computer1 Active Scheme to Measure Throughput of Wireless Access Link in Hybrid Wired-Wireless Network to measure the download throughput of an IEEE 802.11 wireless access link in a hybrid wired-wireless network

Rojas-Cessa, Roberto

13

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...

14

Energy Saving Methods in Wireless Sensor Networks.  

E-Print Network [OSTI]

?? To predict the lifetime of wireless sensor networks before their installation is an important concern. The IEEE 802.15.4 standard is specifically meant to support… (more)

JAWAD ALI, SYED

2008-01-01T23:59:59.000Z

15

Consumer preferences for wireless internet access networks and their affecting factors: a conjoint analysis  

Science Journals Connector (OSTI)

This paper compares service characteristics and analyses consumer preferences between the two current wireless internet access alternatives: 3G cellular networks and public wireless Local Area Network (LAN). A conjoint analysis was employed to find significant service attributes behind consumers' preferences. Major findings of this study are twofold. First, there was a significant difference in consumer preferences among four wireless internet service categories consisting of three wireless LAN services and one 3G service. Secondly, consumers considered price and network speed more important than service coverage, which implies wireless LAN has an advantage over 3G as far as wireless internet access is concerned. These results are expected to be of help to both government policy makers and telecommunications service providers in designing and implementing industrial promotion and competition policies in the wireless industry. Furthermore, they can also shed light on the decision-making regarding the commercial introduction of the mobile broadband wireless services in the near future.

Changi Nam; Kiyong Om; Jungmann Lee; Jeongyoung Kim

2006-01-01T23:59:59.000Z

16

Virtual infrastructure for wireless ad hoc networks  

E-Print Network [OSTI]

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 ...

Gilbert, Seth, 1976-

2007-01-01T23:59:59.000Z

17

Wireless Sensor Networks for Structural Health Monitoring by Sukun Kim  

E-Print Network [OSTI]

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

California at Berkeley, University of

18

Wireless Network Capacity Management: A Real Options Approach  

E-Print Network [OSTI]

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

Forsyth, Peter A.

19

Optimization Online - Energy Savings in Wireless Mesh Networks in ...  

E-Print Network [OSTI]

Jan 24, 2011 ... Abstract: Energy consumption of communication systems is ... Keywords: Energy savings, wireless Mesh Networks, Green networking.

Antonio Capone

2011-01-24T23:59:59.000Z

20

Load Balancing in Wireless Sensor Networks using Kirchhoff's Voltage Law  

E-Print Network [OSTI]

Load Balancing in Wireless Sensor Networks using Kirchhoff's Voltage Law Stavros Toumpis Electrical balancing in wireless networks with a single class of traffic, focusing our attention on an important example, i.e., Wireless Sensor Networks. The analysis is based on the Wireless Minimum Cost Problem

Toumpis, Stavros

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Wireless Network Control of Interacting Rydberg Atoms  

Science Journals Connector (OSTI)

We identify a relation between the dynamics of ultracold Rydberg gases in which atoms experience a strong dipole blockade and spontaneous emission, and a stochastic process that models certain wireless random-access networks. We then transfer insights and techniques initially developed for these wireless networks to the realm of Rydberg gases, and explain how the Rydberg gas can be driven into crystal formations using our understanding of wireless networks. Finally, we propose a method to determine Rabi frequencies (laser intensities) such that particles in the Rydberg gas are excited with specified target excitation probabilities, providing control over mixed-state populations.

Jaron Sanders; Rick van Bijnen; Edgar Vredenbregt; Servaas Kokkelmans

2014-04-22T23:59:59.000Z

22

Wireless sensor networks and environmental monitoring applications  

E-Print Network [OSTI]

Radio: 4kbps, 180m Sensors: Light and accelerometer Energy: Solar powered Golem and deputy dust 16mm3-aided medicine Data processing in wireless sensor networks Facilities: Cluster of 16 computers 30 ultra low power wireless sensors Lego robotics lab (10 Mindstorms kits) More to come... (mobile robot, Mindstorms NXT kits

Le Borgne, Yann-AĂ«l

23

Antenna beamforming for infrastructureless wireless networks  

E-Print Network [OSTI]

Our work studies the impact of antenna beamforming on the performance of infrastructureless wireless networks. Based on examination of the beampattern for a uniform circular antenna array (UCAA) utilizing beamforming under ...

Godoy, Elizabeth C

2007-01-01T23:59:59.000Z

24

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... ....

25

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

E-Print Network [OSTI]

??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)

Lou, Chong

2015-01-01T23:59:59.000Z

26

An energy efficient RF transceiver for wireless microsensor networks  

E-Print Network [OSTI]

A wireless microsensor network consists of a group of sensor nodes that are deployed remotely and used to relay sensing data to the end-user. Due to their remote deployment, large scale wireless sensor networks require a ...

Daly, Denis Clarke

2005-01-01T23:59:59.000Z

27

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

E-Print Network [OSTI]

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

Sharma, Vinod

28

Software Update Recovery for Wireless Sensor Networks  

E-Print Network [OSTI]

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

Sreenan, Cormac J.

29

Iterative Collision Resolution in Wireless Networks  

E-Print Network [OSTI]

ITERATIVE COLLISION RESOLUTION IN WIRELESS NETWORKS An Undergraduate Research Scholars Thesis by KATHERINE CHRISTINE STUCKMAN Submitted to Honors and Undergraduate Research Texas A&M University in partial fulfillment... Networks (April 2013) Katherine Christine Stuckman Department of Electrical and Computer Engineering Texas A&M University Research Advisor: Dr. Krishna Narayanan Department of Electrical and Computer Engineering With the growing...

Stuckman, Katherine Christine

2013-03-29T23:59:59.000Z

30

Flexible network wireless transceiver and flexible network telemetry transceiver  

DOE Patents [OSTI]

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.

Brown, Kenneth D. (Grain Valley, MO)

2008-08-05T23:59:59.000Z

31

Efficient Hybrid Key Agreement Protocol for Wireless Ad Hoc Networks  

E-Print Network [OSTI]

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

Wang, Yu

32

Topology Reconstruction and Characterisation of Wireless Ad Hoc Networks  

E-Print Network [OSTI]

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

Roughan, Matthew

33

A Comprehensive Overview of Wireless Body Area Networks WBAN  

Science Journals Connector (OSTI)

In recent years, the wireless body area network WBAN has emerged as a new technology for e-healthcare applications. The WBANs promise to revolutionize health monitoring. However, this technology remains in the first stages and much research is underway. ... Keywords: Healthcare, IEEE802.15.6, MAC, Security, Sensors, Wireless Body Area Networks, Wireless Sensors Networks

Nourchene Bradai, Lamia Chaari, Lotfi Kamoun

2011-07-01T23:59:59.000Z

34

Distributed Medium Access Control for Next Generation CDMA Wireless Networks  

E-Print Network [OSTI]

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

Zhuang, Weihua

35

A Biologically Inspired Networking Model for Wireless Sensor Networks  

E-Print Network [OSTI]

Wireless sensor networks (WSNs) have emerged in strategic applications such as target detection, localization, and tracking in battlefields, where the large-scale na- ture renders centralized control prohibitive. In addition, the finite batteries...

Charalambous, Charalambos

2011-02-22T23:59:59.000Z

36

Constructing Minimum-Energy Broadcast Trees In Wireless Ad Hoc Networks  

E-Print Network [OSTI]

networks are not available or not economical to build [3]. These span the commercial, public as well it is not economical to build a fixed in- frastructure for a short temporary usage. In tactical battle- fieldConstructing Minimum-Energy Broadcast Trees In Wireless Ad Hoc Networks Weifa Liang Department

Liang, Weifa

37

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

38

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

E-Print Network [OSTI]

by becoming mobile. This is referred to as mHealth [2]. In order to fully exploit the benefits of wireless technologies in telemedicine and mHealth, a new type of wireless network emerges: a wireless on-body network

39

Wireless Networks for Smart Surveillance: Technologies, Protocol Design and Experiments  

E-Print Network [OSTI]

of companies operating in the field of home automation and advanced security systems. Although most solutions of security. A wireless network for home automation is composed of a number of wireless-embedded sensors propagation. Several examples of Wireless Home Automation Networks (WHAN) have been discussed

Savazzi, Stefano

40

Channel assignment using block design in wireless mesh networks  

Science Journals Connector (OSTI)

With the advantages of both wireless LAN and ad hoc, wireless mesh network (WMN) has its characteristic performance in the following aspects: capacity, speed and coverability. In order to solve channel assignment problems in WMN, connectivity of the ... Keywords: Channel assignment, Connectivity, Interference, Routing, Wireless mesh network

Hejiao Huang; Xiaolu Cao; Xiaohua Jia; Xiaolong Wang

2009-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

A Virtual Infrastructure for Wireless Sensor Networks  

E-Print Network [OSTI]

of microelectromechanical systems (MEMS), miniaturized low-power devices that integrate sensing, special-purpose computing, and wireless communications 107 Handbook of Sensor Networks: Algorithms and Architectures, Edited by I of their operating environ- ment (anonymity of individual sensors, limited energy budget, and a possibly hostile

Stojmenovic, Ivan

42

Graphene-enabled Wireless Communication Networks  

E-Print Network [OSTI]

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

Politècnica de Catalunya, Universitat

43

Distributed A Wireless Sensor Network for  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . 11 4.3.1 Transmission Lines . . . . . . . . . . . . . . . . . . . . . . 12 4.3.2 Microstrip LinesOS is used as a software platform, and the Collection Tree Protocol (CTP) currently handles multi-hop routing-wave Monopole Antennas . . . . . . . . . . . . . 13 5 MAC and Routing in Wireless Sensor Networks 14 5.1 Medium

44

ENERGY EFFICIENCY AND SECURITY FOR MULTIHOP WIRELESS NETWORKS  

E-Print Network [OSTI]

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

Vaidya, Nitin

45

Vidyut: exploiting power line infrastructure for enterprise wireless networks  

Science Journals Connector (OSTI)

Global synchronization across time and frequency domains significantly benefits wireless communications. Multi-Cell (Network) MIMO, interference alignment solutions, opportunistic routing techniques in ad-hoc networks, OFDMA etc. all necessitate synchronization ... Keywords: frequency synchronization, network mimo, power line communications, time synchronization, wireless networks

Vivek Yenamandra, Kannan Srinivasan

2014-08-01T23:59:59.000Z

46

Deadline-aware Broadcasting in Wireless Networks with Network Coding  

E-Print Network [OSTI]

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

Wu, Jie

47

Implementation of Campus-wide Wireless Network Services using ATM, Virtual LANs, and Wireless Basestations  

E-Print Network [OSTI]

Implementation of Campus-wide Wireless Network Services using ATM, Virtual LANs, and Wireless of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign 405 North Mathews Ave Urbana, IL 61801 Abstract-A campus-wide wireless LAN has been imple- mented that combines the scalability

Lockwood, John W.

48

ABHINAV MURALI ACES-205,Multimedia Wireless Networks Lab  

E-Print Network [OSTI]

(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

Jagannatham, Aditya K.

49

ESTR -Energy Saving Token Ring Protocol for Wireless Sensor Networks  

E-Print Network [OSTI]

ESTR - Energy Saving Token Ring Protocol for Wireless Sensor Networks Faruk Bagci, Theo Ungerer a long lifetime of the sensor network and the application it is important to save energy. A sensor node control (MAC) protocol for wireless sensor networks, called Energy Saving Token Ring Protocol (ESTR). ESTR

Ungerer, Theo

50

An Energy-efficient Wireless Sensor Network for Precision Agriculture  

E-Print Network [OSTI]

An Energy-efficient Wireless Sensor Network for Precision Agriculture Herman Sahota Ratnesh Kumar and control technologies in application areas such as precision agriculture. We design MAC and Network layers for a wireless sensor network deployed for a precision agriculture application which requires periodic collection

Kumar, Ratnesh

51

Sink repositioning for enhanced performance in wireless sensor networks  

Science Journals Connector (OSTI)

Most of the energy aware routing approaches for unattended wireless sensor networks pursue multi-hop paths in order to minimize the total transmission power. Since almost in all sensor networks data are routed towards a single sink (gateway), hops close ... Keywords: Energy awareness, Real-time data delivery, Sink relocation, Timeliness, Wireless sensor networks

Kemal Akkaya; Mohamed Younis; Meenakshi Bangad

2005-11-01T23:59:59.000Z

52

Disaster Management Projects Using Wireless Sensor Networks: An Overview  

Science Journals Connector (OSTI)

There are numerous projects dealing with disaster management and emergency response that use wireless sensor networks technologies. Indeed, WSNs offer a good alternative compared to traditional ad hoc networks. Air pollution monitoring, forest fire detection, ... Keywords: Wireless Sensor Networks, Disaster Management, Emergency Response, Information Systems

Imane Benkhelifa, Nadia Nouali-Taboudjemat, Samira Moussaoui

2014-05-01T23:59:59.000Z

53

Modeling mobility and workload for wireless metropolitan area networks  

Science Journals Connector (OSTI)

Research on large-scale wireless metropolitan area networks, which offer broadband capacity while supporting user and terminal mobility suffers from the lack of realistic mobility and workload models. There is a strong need for such models to be able ... Keywords: Metropolitan area radio access networks, Mobile communications, Mobility modeling, Wireless communication networks, Workload modeling

Matthias Hollick; Tronje Krop; Jens Schmitt; Hans-Peter Huth; Ralf Steinmetz

2004-05-01T23:59:59.000Z

54

Planning Wireless Networks with Demand Uncertainty using Robust ...  

E-Print Network [OSTI]

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

2011-03-04T23:59:59.000Z

55

Distributed Energy-Saving Algorithms for Wireless Networks.  

E-Print Network [OSTI]

??The rapid growth of wireless networks has led to increasing interest in designing new algorithms that can efficiently reduce the energy consumption of routers and… (more)

Zazo Ruiz, Javier

56

Distributed Energy-Saving Algorithms for Wireless Networks.  

E-Print Network [OSTI]

??The rapid growth of wireless networks has led to increasing interest in designing new algorithms that can efficiently reduce the energy consumption of routers and… (more)

Zazo Ruiz, Javier

2012-01-01T23:59:59.000Z

57

Wireless Sensor Network for Aircraft Health Monitoring Honeywell Labs  

E-Print Network [OSTI]

Wireless Sensor Network for Aircraft Health Monitoring Haowei Bai Honeywell Labs 3660 Technology Drive Minneapolis, MN 55418 haowei.bai@honeywell.com Mohammed Atiquzzaman School of Computer Science

Minnesota, University of

58

Existing PON Infrastructure Supported Hybrid Fiber-Wireless Sensor Networks  

Science Journals Connector (OSTI)

We propose a hybrid fiber wireless sensor network based on the existing PON infrastructure. The feasibility of remote sensing and PON convergence is experimentally proven by...

Yu, Xianbin; Zhao, Ying; Deng, Lei; Pang, Xiaodan; Tafur Monroy, Idelfonso

59

Wireless Sensor Network for Advanced Energy Management Solutions  

SciTech Connect (OSTI)

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

Peter J. Theisen; Bin Lu, Charles J. Luebke

2009-09-23T23:59:59.000Z

60

Video Pricing for Wireless Networks Patrick Seeling and Martin Reisslein  

E-Print Network [OSTI]

Video Pricing for Wireless Networks Patrick Seeling and Martin Reisslein Dept. of Electrical://trace.eas.asu.edu Abstract-- The development of pricing schemes that account for the specific challenges in streaming video to wireless clients is one of the key requirements for making wireless video services economically viable

Reisslein, Martin

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Mobility in Wireless Sensor Networks  

E-Print Network [OSTI]

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

Mehta, Ankur Mukesh

2012-01-01T23:59:59.000Z

62

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

E-Print Network [OSTI]

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

Sirer, Emin Gun

63

Secure hybrid routing with micro/macro-mobility handoff mechanisms for urban wireless mesh networks  

Science Journals Connector (OSTI)

Secure and pervasive internet access is the goal of present research in wireless networks realm. Wireless Mesh Network (WMN) is expected to be the most widely used network in the near future to make the anywhere-anytime internet access into ... Keywords: handoff latency, handoff mechanisms, hybrid routing, key management, mobility management, pervasive internet access, security, simulation, urban WMN:, wireless mesh networks, wireless networks

Ramanarayana Kandikattu; Lillykutty Jacob

2008-10-01T23:59:59.000Z

64

Mobility in Wireless Sensor Networks  

E-Print Network [OSTI]

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

Mehta, Ankur Mukesh

2012-01-01T23:59:59.000Z

65

Wireless Sensor Networks for the Protection of an Electrical Energy Distribution Infrastructure  

E-Print Network [OSTI]

Wireless Sensor Networks for the Protection of an Electrical Energy Distribution Infrastructure Ant. Keywords: Wireless Sensor Networks, Critical Infrastructure Protection, Electrical Energy Distribution of critical points of failure. Fig. 1. MV/LV electricity distribution infrastructure. The Wireless Sensor

Boyer, Edmond

66

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

E-Print Network [OSTI]

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

Abedini, Navid

2012-10-19T23:59:59.000Z

67

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

E-Print Network [OSTI]

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

Amir, Yair

68

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

SciTech Connect (OSTI)

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

Patrick O'Neill

2009-06-30T23:59:59.000Z

69

VoIP Quality Evaluation in Mobile Wireless Networks  

Science Journals Connector (OSTI)

Managing voice service quality over both IP-based wired and wireless networks has become a challenge, especially in a heterogeneous network environment. This paper discusses the issues that affect voice qualit...

1; 2Pei-Jeng Kuo; Koji Omae; Ichiro Okajima…

2002-01-01T23:59:59.000Z

70

On the Capacity of Hybrid Wireless Networks with Opportunistic Routing  

Science Journals Connector (OSTI)

This paper studies the capacity of hybrid wireless networks with opportunistic routing (OR). ... algorithm to exploit high speed data transmissions in infrastructure network through base stations. We then develop...

Tan Le; Yong Liu

2009-01-01T23:59:59.000Z

71

Explicit congestion indication for TCP over wireless networks  

E-Print Network [OSTI]

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...

Shishir

2012-06-07T23:59:59.000Z

72

A Realistic Power Consumption Model for Wireless Sensor Network Devices  

E-Print Network [OSTI]

1 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 sensor network node devices is presented. Simple power consumption models for major components

Hempstead, Mark

73

Energy Efficiency of Encryption Schemes Applied to Wireless Sensor Networks  

E-Print Network [OSTI]

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

Heys, Howard

74

Review: A survey of intrusion detection in wireless network applications  

Science Journals Connector (OSTI)

Information systems are becoming more integrated into our lives. As this integration deepens, the importance of securing these systems increases. Because of lower installation and maintenance costs, many of these systems are largely networked by wireless ... Keywords: Classification, Intrusion detection, Security, Wireless networks

Robert Mitchell, Ing-Ray Chen

2014-04-01T23:59:59.000Z

75

Approximate Minimum-Energy Multicasting in Wireless Ad Hoc Networks  

E-Print Network [OSTI]

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

Liang, Weifa

76

Secure neighbor discovery in wireless networks: formal investigation of possibility  

Science Journals Connector (OSTI)

Wireless communication enables a broad spectrum of applications, ranging from commodity to tactical systems. Neighbor discovery (ND), that is, determining which devices are within direct radio communication, is a building block of network protocols ... Keywords: relay attack, secure neighbor discovery, wireless networks security

Marcin Poturalski; Panos Papadimitratos; Jean-Pierre Hubaux

2008-03-01T23:59:59.000Z

77

Network Electricity Use Associated with Wireless Personal Digital Assistants  

E-Print Network [OSTI]

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

Kammen, Daniel M.

78

Energy-Efficient Localized Routing in Random Multihop Wireless Networks  

E-Print Network [OSTI]

Energy-Efficient Localized Routing in Random Multihop Wireless Networks Yu Wang, Senior Member the energy efficiency of routes in multihop wireless networks. Among them, several geographical localized Localized Energy-Aware Restricted Neighborhood routing (LEARN), which can guarantee the energy efficiency

Wang, Yu

79

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

E-Print Network [OSTI]

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

Meyers, Steven D.

80

On the Connectivity Analysis over Large-Scale Hybrid Wireless Networks  

E-Print Network [OSTI]

are hybrid networks which include infrastructure nodes in multi-hop wireless networks, such as sinks nodes. hybrid networks which include infrastructure nodes in multi- hop wireless networks, such as sinksOn the Connectivity Analysis over Large-Scale Hybrid Wireless Networks Chi Yi and Wenye Wang

Wang, Wenye

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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81

1569174510 1 Abstract--Wireless networking technologies permit a great  

E-Print Network [OSTI]

there is more potential for abuse and misuse of these services. In this work we find the uptake of wireless teams in different areas of England and Wales, in the United Kingdom (UK). Index Terms-- Internet, Networks, Security, Wireless LAN I. INTRODUCTION IRELESS (Wi-Fi) Internet access is now commonplace among

Grout, Vic

82

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

E-Print Network [OSTI]

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

Politècnica de Catalunya, Universitat

83

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

84

Wireless Sensor Networks for Monitoring of Large Public Buildings  

E-Print Network [OSTI]

for a communication infrastructure set-up. Using energy-conservation techniques (putting nodes to sleep whenWireless Sensor Networks for Monitoring of Large Public Buildings Murat Demirbas Department potential, monitoring of large public buildings is a significant emerging application area for wireless

Demirbas, Murat

85

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

86

Handover Performance of HVAC Duct Based Indoor Wireless Networks  

E-Print Network [OSTI]

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

Stancil, Daniel D.

87

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

E-Print Network [OSTI]

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

Han, Richard Y.

88

Wireless Sensor Network for Monitoring of Historic Structures under Rehabilitation  

E-Print Network [OSTI]

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...

Samuels, Julie Marie

2012-02-14T23:59:59.000Z

89

Algebraic Watchdog: Mitigating Misbehavior in Wireless Network Coding  

E-Print Network [OSTI]

We propose a secure scheme for wireless network coding, called the algebraic watchdog. By enabling nodes to detect malicious behaviors probabilistically and use overheard messages to police their downstream neighbors ...

Kim, MinJi

90

Implementing a green bicycle alliance using a wireless sensor network  

Science Journals Connector (OSTI)

This study used the wireless sensor network (WSN) technique to design a bike device module, a bike path establishment module and a cloud service module. These three modules were used to address issues related to cycling activities, including green power ...

Haw-Yun Shin; Chung-Ming Own

2014-08-01T23:59:59.000Z

91

MARWIS: A Management Architecture for Heterogeneous Wireless Sensor Networks  

E-Print Network [OSTI]

8. 2 Related Work Most management and code distribution approaches does not support hetero- geneousMARWIS: A Management Architecture for Heterogeneous Wireless Sensor Networks Gerald Wagenknecht Science and Applied Mathematics University of Bern, Switzerland Email: {wagen, anwander, braun, staub

Braun, Torsten

92

Robust Clock Synchronization Methods for Wireless Sensor Networks  

E-Print Network [OSTI]

Wireless sensor networks (WSNs) have received huge attention during the recent years due to their applications in a large number of areas such as environmental monitoring, health and traffic monitoring, surveillance and tracking, and monitoring...

Lee, Jae Han

2011-10-21T23:59:59.000Z

93

High-throughput routing for multi-hop wireless networks  

E-Print Network [OSTI]

The expected transmission count (ETX) metric is a new route metric for finding high-throughput paths in multi-hop wireless networks. The ETX of a path is the expected total number of packet transmissions (including ...

De Couto, Douglas S. J. (Douglas Seraphim James), 1975-

2004-01-01T23:59:59.000Z

94

A robust location tracking using ubiquitous RFID wireless network  

Science Journals Connector (OSTI)

A dangerous workplace like the iron production company needs a durable monitoring of workers to protect them from an critical accident. This paper concerns about a robust and accurate location tracking method using ubiquitous RFID wireless network. The ...

Keunho Yun; Seokwon Choi; Daijin Kim

2006-09-01T23:59:59.000Z

95

Energy Parameter Estimation in Solar Powered Wireless Sensor Networks  

Science Journals Connector (OSTI)

The operation of solar powered wireless sensor networks is associated with ... the main challenges is the high variability of solar power input and battery capacity, due to factors such as weather, ... sensor net...

Mustafa Mousa; Christian Claudel

2014-01-01T23:59:59.000Z

96

Challenges and Solutions for Intrusion Detection in Wireless Mesh Networks  

E-Print Network [OSTI]

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...

Hassanzadeh, Amin

2014-05-03T23:59:59.000Z

97

Mobility management support and performance analysis for wireless MPLS networks  

Science Journals Connector (OSTI)

Multi-Protocol Label Switching (MPLS) is deployed in the Internet backbone to support service differentiation and traffic engineering. In recent years, there has been interest in extending the MPLS capability to wireless access networks for mobility ...

Rami Langar; Samir Tohme; Nizar Bouabdallah

2006-07-01T23:59:59.000Z

98

Municipal wireless mesh networks as a competitive broadband delivery platform  

E-Print Network [OSTI]

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 ...

Hassan-Ali, Mudhafar

2007-01-01T23:59:59.000Z

99

SBA: A Simple Backoff Algorithm for Wireless Ad Hoc Networks  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

100

Joint Power-Delay Minimization in Green Wireless Access Networks  

E-Print Network [OSTI]

, adapting power consumption to traffic load [3] or devising intelligent network deployment strategies using an optimization problem that jointly minimizes the power consumption of the network and the sum of data unitJoint Power-Delay Minimization in Green Wireless Access Networks Farah Moety, Samer Lahoud, Kinda

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

ICS 351: Today's plan Wireless ad-hoc Networks  

E-Print Network [OSTI]

: ­ agriculture ­ science and ecology Emergency Communications (P2P) Vehicle Ad-hoc Networks (VANETs): ­ Vehicle-to-vehicle-hoc Networks Mobile computers: laptops (and everything else), vehicle-mounted computers, etc. Fields ­ Vehicle-to-infrastructure ­ Infra-Vehicle (within a vehicle) #12;4 Wireless Ad-hoc Networks: More

Biagioni, Edoardo S.

102

Oak Ridge National Laboratory - Wireless Networking  

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

Oak Ridge National Laboratory Oak Ridge National Laboratory Oak Ridge National Laboratory UT-Battelle U.S. Department of Energy Oak Ridge National Laboratory Oak Ridge National Laboratory Oak Ridge National Laboratory Find People · Contacts · Site Index · Comments Saturday, January 11, 2014 Location right-hand arrow ORNL Home · Visiting ORNL · Wireless Networking Home News About ORNL ORNL Video Science & Technology Spallation Neutron Source User Facilities Technology Transfer Working with ORNL Community Outreach Jobs Visitor Information Calendar of Events University Partners Contact Us Featured Sites Home News About ORNL ORNL Video Science & Technology Spallation Neutron Source User Facilities Technology Transfer Working with ORNL Community Outreach Jobs Visitor Information Calendar of Events

103

Lightweight Jammer Localization in Wireless Networks: System Design and Implementation  

E-Print Network [OSTI]

Abstract—Jamming attacks have become prevalent during the last few years, due to the shared nature and the open access to the wireless medium. Finding the location of a jamming device is of great importance for restoring normal network operations. After detecting the malicious node we want to find its position, in order for further security actions to be taken. Our goal in this paper is the design and implementation of a simple, lightweight and generic localization algorithm. Our scheme is based on the principles of the gradient descent minimization algorithm. The key observation is that the Packet Delivery Ratio (PDR) has lower values as we move closer to the jammer. Hence, the use of a gradient-based scheme, operating on the discrete plane of the network topology, can help locate the jamming device. The contributions of our work are the following: (a) We demonstrate, through analysis and experimentation, the way that the jamming effects propagate through the network in terms of the observed PDR. (b) We design a distributed, lightweight jammer localization system which does not require any modifications to the driver/firmware of commercial NICs. (c) We implement and evaluate our localization system on our 802.11 indoor testbed. An attractive and important feature of our system is that it does not rely on special hardware 1.

unknown authors

104

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

E-Print Network [OSTI]

-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

Landfeldt, Bjorn

105

Optimal hierarchical pricing schemes for wireless network usage and resource allocation  

E-Print Network [OSTI]

some costs associated with the wireless network usage such as electricity cost, office renting costOptimal hierarchical pricing schemes for wireless network usage and resource allocation Andrey in wireless networks. For instance, before transmitting customer data, a network operator has to buy some

Paris-Sud XI, Université de

106

Energy Efficiency of Symmetric Key Cryptographic Algorithms in Wireless Sensor Networks  

E-Print Network [OSTI]

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

Heys, Howard

107

A simulation model for the lifetime of wireless sensor networks  

E-Print Network [OSTI]

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.

Elleithy, Abdelrahman

2012-01-01T23:59:59.000Z

108

Achieving Queue-Length Stability Through Maximal Scheduling in Wireless Networks  

E-Print Network [OSTI]

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

Sarkar, Saswati

109

Delay Analysis of Maximum Weight Scheduling in Wireless Ad Hoc Networks  

E-Print Network [OSTI]

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 ...

Modiano, Eytan H.

110

Minimum Energy Cost k-barrier Coverage in Wireless Sensor Networks  

Science Journals Connector (OSTI)

Barrier coverage problem is one of important issues in wireless sensor networks. In this paper we study the minimum energy cost k-barrier coverage problem in wireless sensor network in which each sensor has l...?...

Huiqiang Yang; Deying Li; Qinghua Zhu…

2010-01-01T23:59:59.000Z

111

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

E-Print Network [OSTI]

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 ...

Correll, Nikolaus

112

A high-accuracy nonintrusive networking testbed for wireless sensor networks  

Science Journals Connector (OSTI)

It becomes increasingly important to obtain the accurate and spontaneous runtime network behavior for further studies on wireless sensor networks. However, the existing testbeds cannot appropriately match such requirements. A High-accuracy Nonintrusive ...

Wei Huangfu; Limin Sun; Jiangchuan Liu

2010-02-01T23:59:59.000Z

113

LBN: Load-Balancing Network for Data Gathering Wireless Sensor Networks  

Science Journals Connector (OSTI)

Hotspots of energy consumption and network congestions can be caused by load imbalance among sensor nodes in wireless sensor networks. This may lead to loss of data packets and premature death of sensor nodes ......

Wenlu Yang; Chongqing Zhang; Minglu Li

2006-01-01T23:59:59.000Z

114

UAV surveillance using multihop ad-hoc wireless networks: a demonstrator  

E-Print Network [OSTI]

UAV surveillance using multihop ad-hoc wireless networks: a demonstrator Daniël Heimans, Maurits de

Boucherie, Richard J.

115

Time Synchronization in Hierarchical TESLA Wireless Sensor Networks  

SciTech Connect (OSTI)

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.

Jason L. Wright; Milos Manic

2009-08-01T23:59:59.000Z

116

FEMP Technology Brief: Wireless Sensor Networks for Data Centers |  

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

Wireless Sensor Networks for Data Centers Wireless Sensor Networks for Data Centers FEMP Technology Brief: Wireless Sensor Networks for Data Centers October 7, 2013 - 9:15am Addthis The geometrical arrangement of your server rack in a data center to optimize heat removal can dramatically lower cooling and fan power needs. Server rack configuration in the Data Center at the National Renewable Energy Laboratory (NREL) Research Support Facility. Photo credit: NREL PIX 18784 The waste heat emitted from institutional data center servers can be removed more efficiently when design considerations are evaluated and innovative monitoring sensor networks are installed for verification and measurement. Hot aisle containment system in the Data Center at the NREL Research Support Facility. Photo credit: NREL PIX 18780

117

FEMP Technology Brief: Wireless Sensor Networks for Data Centers |  

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

FEMP Technology Brief: Wireless Sensor Networks for Data Centers FEMP Technology Brief: Wireless Sensor Networks for Data Centers FEMP Technology Brief: Wireless Sensor Networks for Data Centers October 7, 2013 - 9:15am Addthis The geometrical arrangement of your server rack in a data center to optimize heat removal can dramatically lower cooling and fan power needs. Server rack configuration in the Data Center at the National Renewable Energy Laboratory (NREL) Research Support Facility. Photo credit: NREL PIX 18784 The waste heat emitted from institutional data center servers can be removed more efficiently when design considerations are evaluated and innovative monitoring sensor networks are installed for verification and measurement. Hot aisle containment system in the Data Center at the NREL Research Support Facility. Photo

118

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

SciTech Connect (OSTI)

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.

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

119

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

120

Efficient Asynchronous Low Power Listening for Wireless Sensor Networks  

E-Print Network [OSTI]

Efficient Asynchronous Low Power Listening for Wireless Sensor Networks Rajesh Krishna Panta, James mechanism to reduce energy consumption of sensor devices and to increase the lifetime of the network. A side during idle listening--the time period for which the radio transceiver of a sensor node is awake

Fisher, Kathleen

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Localized Minimum-Energy Broadcasting for Wireless Multihop Networks  

E-Print Network [OSTI]

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

Stojmenovic, Ivan

122

Energy Efficient Broadcast Routing in Static Ad Hoc Wireless Networks  

E-Print Network [OSTI]

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

Jia, Xiaohua

123

ITB: intrusion-tolerant broadcast protocol in wireless sensor networks  

Science Journals Connector (OSTI)

A large-scale wireless sensor network relies on broadcast protocol for data communication. This paper presents an idea for a base station to reliably and securely broadcast announcing messages to the network in an intrusion-tolerant way. Our Intrusion-Tolerant ...

Jin Wook Lee; Yann-Hang Lee

2006-09-01T23:59:59.000Z

124

Wireless Distributed Architecture for Therapeutic Functional Electrical Stimulation : a technology to design network-based muscle control  

E-Print Network [OSTI]

Wireless Distributed Architecture for Therapeutic Functional Electrical Stimulation : a technology Stimulation architecture based on a wireless network, for therapeutic training of disabled patients applications with external FES, in a clinical context. In a wireless network- based control, the variable delay

Paris-Sud XI, Université de

125

Not all wireless sensor networks are created equal: A comparative study on tunnels  

Science Journals Connector (OSTI)

Wireless sensor networks (WSNs) are envisioned for a number of application scenarios. Nevertheless, the few in-the-field experiences typically focus on the features of a specific system, and rarely report about the characteristics of the target environment, ... Keywords: Wireless sensor networks, link quality, low-power wireless communications, network topologies, topology characterization, tunnel environment

Luca Mottola; Gian Pietro Picco; Matteo Ceriotti; ?tefan Gun?; Amy L. Murphy

2010-08-01T23:59:59.000Z

126

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

E-Print Network [OSTI]

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

Tam, Vincent W. L.

127

Deployment algorithms and indoor experimental vehicles for studying mobile wireless sensor networks  

Science Journals Connector (OSTI)

Wireless communication has been traditionally used in robotics to transmit sensory and telemetry information between a robot and a base station. Because research in mobile robotics has typically focused on navigation, mapping and sensor fusion, network ... Keywords: adaptive sampling, discrete event controllers, mobile WSNs, mobile robots, potential fields, robot navigation, robotic deployment, wireless networks, wireless sensor networks

Dan O. Popa; Muhammad F. Mysorewala; Frank L. Lewis

2009-08-01T23:59:59.000Z

128

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

E-Print Network [OSTI]

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

Chen, Yuanzhu Peter

129

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

E-Print Network [OSTI]

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

Jiang, Hai

130

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

131

A spatial statistics approach to characterizing and modeling the structure of cognitive wireless networks  

Science Journals Connector (OSTI)

The performance of cognitive wireless networks (CWNs) depends heavily on their spatial structure. However, highly simplified models are still routinely used for performance evaluation of CWNs and other wireless networks, with node locations often being ... Keywords: Cognitive wireless networks, Point processes, Spatial statistics, Stochastic geometry

Janne Riihijärvi; Petri Mähönen

2012-07-01T23:59:59.000Z

132

Measurement and Analysis of the Error Characteristics of an InBuilding Wireless Network  

E-Print Network [OSTI]

on fiber or electrical connections have excellent error characteris­ tics but that wireless networksMeasurement and Analysis of the Error Characteristics of an In­Building Wireless Network David fdavide,prsg@cs.cmu.edu Abstract There is general belief that networks based on wireless technolo­ gies

Eckhardt, Dave

133

ANEWFRAMEWORK FOR POWER CONTROL IN WIRELESS DATA NETWORKS: GAMES, UTILITY, AND PRICING  

E-Print Network [OSTI]

David Famolari Wireless Information Network Laboratory (WINLAB) Dept. of Electrical and Computer@winlab.rutgers.edu David Goodman Wireless Information Network Laboratory (WINLAB) Dept. of Electrical and ComputerChapter 1 ANEWFRAMEWORK FOR POWER CONTROL IN WIRELESS DATA NETWORKS: GAMES, UTILITY, AND PRICING

Mandayam, Narayan

134

Laser-free inter-networking hybrid base stations towards convergence of wireless  

E-Print Network [OSTI]

direction, the uplink electrical signals from wireless and wired customers are electrically combinedLaser-free inter-networking hybrid base stations towards convergence of wireless and wired access with an optical network unit for overlaying the transport of wireless signals in an optical access network

Bakaul, Masuduzzaman

135

Master's Thesis Performance Measurement over 3G and 3.5G Wireless Networks  

E-Print Network [OSTI]

Master's Thesis 3 3.5 Performance Measurement over 3G and 3.5G Wireless Networks ( Han, Mongnam) Department of Electrical Engineering and Computer Science Division of Computer Science and 3.5G Wireless Networks 2 #12;Performance Measurement over 3G and 3.5G Wireless Networks Major

Moon, Sue B.

136

Resource management in heterogeneous wireless sensor networks  

E-Print Network [OSTI]

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

Regini, Edoardo

2009-01-01T23:59:59.000Z

137

Wireless video applications in 3G and beyond  

Science Journals Connector (OSTI)

This article surveys wireless video applications that have been commercialized recently or are expected to go to market in 3G (and beyond) mobile networks, mainly covering error control technologies in view of "wireless video." We introduce several related ...

M. Etoh; T. Yoshimura

2005-08-01T23:59:59.000Z

138

Recommended Practices Guide For Securing ZigBee Wireless Networks in  

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

Practices Guide For Securing ZigBee Wireless Networks Practices Guide For Securing ZigBee Wireless Networks in Process Control System Environments Recommended Practices Guide For Securing ZigBee Wireless Networks in Process Control System Environments This paper addresses design principles and best practices regarding the secure implementation and operation of ZigBee wireless networks. ZigBee is a protocol specification and industry standard for a type of wireless communications technology generically known as Low-Rate Wireless Personal Area Networks (LR-WPAN). Recommended Practices Guide For Securing ZigBee Wireless Networks in Process Control System Environments More Documents & Publications Wireless System Considerations When Implementing NERC Critical Infrastructure Protection Standards WA_04_069__EATON_CORPORATION_Waiver_of_Domestic_and_Foreign_.pdf

139

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

E-Print Network [OSTI]

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

Massachusetts at Amherst, University of

140

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

E-Print Network [OSTI]

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

Beigl, Michael

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

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

142

The Case for Wireless Overlay Networks Randy H. Katz and Eric A. Brewer  

E-Print Network [OSTI]

Katz 1 The Case for Wireless Overlay Networks Randy H. Katz and Eric A. Brewer Electrical Wireless data services, other than those for electronic mail or paging, have thus far been more promising wireless overlay networks, extending traditional wired and internetworked processing ``islands'' to hosts

California at Berkeley, University of

143

A Cross-Layer Optimization Framework for Multicast in Multi-hop Wireless Networks  

E-Print Network [OSTI]

A Cross-Layer Optimization Framework for Multicast in Multi-hop Wireless Networks Jun Yuan, Zongpeng Li, Wei Yu, Baochun Li Department of Electrical and Computer Engineering University of Toronto-hop wireless networks due to the interference among local wireless transmissions. In this paper, we propose

Li, Baochun

144

TCPL: A Defense against wormhole attacks in wireless sensor networks  

SciTech Connect (OSTI)

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.

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

145

Energy Efficient Scheduling with Power Control for Wireless Networks  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

146

An EAP ID-Based Authentication Method for Wireless Networks  

E-Print Network [OSTI]

(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

Paris-Sud XI, Université de

147

Short-Term Solar Energy Forecasting Using Wireless Sensor Networks  

E-Print Network [OSTI]

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

Cerpa, Alberto E.

148

A Declarative Toolkit for Rapid Experimentation Wireless Mesh Networks  

E-Print Network [OSTI]

patterns. Lack of systematic tools for rapid prototyping. #12;3 Motivation Simulation studies are useful: The Approach A development toolkit that unifies rapid prototyping, simulation and experimentation. IntegratesRapidMesh A Declarative Toolkit for Rapid Experimentation of Wireless Mesh Networks http

Loo, Boon Thau

149

Poster: environment-adaptive clock calibration for wireless sensor networks  

Science Journals Connector (OSTI)

In this paper, we propose a novel clock calibration approach, which addresses two key challenges for clock calibration in Wireless Sensor Networks: excessive communication overhead and the trade-off between accuracy and cost. To achieve this, our approach ... Keywords: clock calibration, environment adaptive, wsns

Meng Jin; Dingyi Fang; Xiaojiang Chen; Zhe Yang; Chen Liu; Dan Xu; Xiaoyan Yin

2014-08-01T23:59:59.000Z

150

Fusion Frames and Wireless Sensor Networks Gitta Kutyniok  

E-Print Network [OSTI]

Fusion Frames and Wireless Sensor Networks Gitta Kutyniok Institut f¨ur Mathematik Technische Universit¨at Berlin 10623 Berlin Germany Email: kutyniok@math.tu-berlin.de Abstract--Fusion frames provide science, information theory, and signal processing, to name a few. Fusion frames extend this notion

Kutyniok, Gitta

151

Optimizing Communication Energy Consumption in Perpetual Wireless Nanosensor Networks  

E-Print Network [OSTI]

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

Weigle, Michele

152

VEHICLE TRACKING USING MOBILE WIRELESS SENSOR NETWORKS DURING DYNAMIC LOAD  

E-Print Network [OSTI]

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

Lynch, Jerome P.

153

On Reducing Broadcast Redundancy in Ad Hoc Wireless Networks  

E-Print Network [OSTI]

effectively to reduce redundant transmissions. Simulation results of applying these two algorithms show are discussed and compared through simulation under both the static and dynamic environments. Index Terms--Ad hoc wireless networks, broadcast, dominant pruning, flooding. æ 1 INTRODUCTION IN areas where

Wu, Jie

154

Minimum-Hot-Spot Query Trees for Wireless Sensor Networks  

E-Print Network [OSTI]

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

Zeinalipour, Demetris

155

A Vehicular Wireless Sensor Network for CO2 Monitoring  

E-Print Network [OSTI]

the concentration of carbon dioxide (CO2) gas in areas of interest. The reported data are sent to a server, which the concentration of carbon dioxide (CO2) gas in areas of interest. CO2 gas is a critical index of air qualityA Vehicular Wireless Sensor Network for CO2 Monitoring Shu-Chiung Hu1, You-Chiun Wang1, Chiuan

Tseng, Yu-Chee

156

Saving Energy by Adjusting Transmission Power in Wireless Sensor Networks  

E-Print Network [OSTI]

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

Rowe, Neil C.

157

Wireless Relay Networks for Green Environment Professor Zbigniew Dziong  

E-Print Network [OSTI]

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

Huang, Jianwei

158

Editor's Choice Handbook of Wireless Networks and Mobile Computing  

E-Print Network [OSTI]

Editor's Choice Handbook of Wireless Networks and Mobile Computing Ivan Stojmenovic, Ed., 2002, and protocol point of view. The particular angle does not reduce in any way the wealth of topics covered, which spans from problems closer to the physical layer (e.g., allocation of channels/frequencies in cellular

Stojmenovic, Ivan

159

Optimum Transmission Range for Wireless Ad Hoc Networks  

E-Print Network [OSTI]

to determine the optimal transmission range that gives the maximum efficiency of energy consumption. Different, and security issues, we inves- tigate the efficiency of energy consumption of wireless ad hoc networks there are studies on increasing battery capacity and reducing the energy consumption of system opera- tion and data

Deng, Jing

160

Utility-based Routing in Wireless Sensor Networks  

E-Print Network [OSTI]

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

Wu, Jie

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Experimental Investigations into TCP Performance over Wireless Multihop Networks  

E-Print Network [OSTI]

, 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

Kawadia, Vikas

162

Predictive Protocol Management with Contingency Planning for Wireless Sensor Networks  

E-Print Network [OSTI]

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

Raja, Anita

163

Local Connectivity Tests to Identify Wormholes in Wireless Networks  

E-Print Network [OSTI]

Local Connectivity Tests to Identify Wormholes in Wireless Networks Xiaomeng Ban Computer Science and removal algorithm based on local connectivity tests. The basic idea is that the neighborhood of a wormhole contains two sets of nodes corresponding to two sides of the wormhole. The distance between these two sets

Gao, Jie

164

Wireless Multimedia Sensor Network for plant disease detections  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

165

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

E-Print Network [OSTI]

-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

Roedig, Utz

166

A Taxonomy of Wireless Micro-Sensor Network Models Sameer Tilak  

E-Print Network [OSTI]

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

Abu-Ghazaleh, Nael B.

167

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

E-Print Network [OSTI]

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

Bystroff, Chris

168

NETWORK CODING-AWARE RATE CONTROL AND SCHEDULING IN WIRELESS NETWORKS  

E-Print Network [OSTI]

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

Markopoulou, Athina

169

Load Adaptive and Fault Tolerant Framework for Energy Saving in Fiber–Wireless Access Networks  

Science Journals Connector (OSTI)

Energy saving (ES) in telecommunication networks is an important criterion when planning access networks. In fiber–wireless (FiWi) access networks the ES potential is high, when...

Barradas, A; Correia, N; Coimbra, J; Schütz, G

2013-01-01T23:59:59.000Z

170

Multi-radio medium access control protocol for wireless sensor networks  

Science Journals Connector (OSTI)

This paper describes a dual-radio based medium access control protocol for wireless sensor networks. Our protocol combines the advantages of the two radios operating in different frequency bands to result in highly energy-efficient operation. The design effectively addresses the two dominant sources of energy consumption in sensor network communication, namely the idle listening and the ephemeral burst data traffic. This paper presents the design rationale and extensive empirical performance evaluation of the protocol in terms of power consumption and latency under various traffic loads and duty cycles. Experimental performance comparison with B-MAC show high gains of our approach. We derive analytical expression for the optimum transmit power level ratio of the two radios giving minimum energy consumption. We also model the mathematical relationship for the optimal duty cycle of the nodes to a given network traffic load and validate it through the prototype implementation on commercially available sensor nodes.

Junaid Ansari; Xi Zhang; Petri Mahonen

2010-01-01T23:59:59.000Z

171

Efficient integration of multi-hop wireless and wired networks with QoS constraints  

Science Journals Connector (OSTI)

This work considers the problem of designing an efficient and low-cost infrastructure for connecting static multi-hop wireless networks with wired backbone, while ensuring QoS requirements such as bandwidth and delay. This infrastructure is useful for ... Keywords: approximation algorithms, clustering, facility location, sensor networks, unit disk graphs, wireless access network

Yigal Bejerano

2002-09-01T23:59:59.000Z

172

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

E-Print Network [OSTI]

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

Park, Seung-Jong "Jay"

173

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

E-Print Network [OSTI]

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

Gomez-Castellanos, Javier

174

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

E-Print Network [OSTI]

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

Ramkumar, Mahalingam

175

Designing energy efficient target tracking protocol with quality monitoring in wireless sensor networks  

Science Journals Connector (OSTI)

Target tracking is one application of wireless sensor networks and energy efficient target tracking algorithms that can be used for accurate tracking are highly desired. In order to achieve energy savings, we focus on reducing energy usage by limiting ... Keywords: Data quality, Energy efficiency, Network lifetime, Target tracking, Wireless sensor networks

Minyi Guo; Elizabeth Olule; Guojun Wang; Song Guo

2010-02-01T23:59:59.000Z

176

On the Capacity of Hybrid Wireless Networks Benyuan Liu , Zhen Liu + , Don Towsley  

E-Print Network [OSTI]

infrastructure should be high enough. Keywords: Throughput capacity, hybrid wireless net­ works, ad hoc networks the infrastructure. While in a hybrid network, data may be forwarded in a multi­ hop fashion or throughOn the Capacity of Hybrid Wireless Networks Benyuan Liu #3; , Zhen Liu + , Don Towsley #3; #3

Massachusetts at Amherst, University of

177

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

E-Print Network [OSTI]

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

Varela, Carlos

178

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

179

Flash Flooding: Exploiting the Capture Effect for Rapid Flooding in Wireless Sensor Networks  

E-Print Network [OSTI]

Flash Flooding: Exploiting the Capture Effect for Rapid Flooding in Wireless Sensor Networks,whitehouse}@cs.virginia.edu Abstract--We present the Flash flooding protocol for rapid network flooding in wireless sensor networks. Traditional flooding protocols can be very slow because of neighborhood contention: nodes cannot propagate

Whitehouse, Kamin

180

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

E-Print Network [OSTI]

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

Savazzi, Stefano

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

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

E-Print Network [OSTI]

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

Roedig, Utz

182

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

E-Print Network [OSTI]

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

Sreenan, Cormac J.

183

On optimizing wireless mesh networks : from theoretical capacity analysis to practical algorithm design  

E-Print Network [OSTI]

are using hybrid architecture in its infrastructure mode. Inusing hybrid architecture With a wireless infrastructure,special hybrid network operating in an infrastructure mode,

Zhou, Ping

2008-01-01T23:59:59.000Z

184

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

E-Print Network [OSTI]

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

2010-12-20T23:59:59.000Z

185

Subduction Zone Seismic Experiment in Peru: Results From a Wireless Seismic Network  

E-Print Network [OSTI]

Sensing Subduction Zone Seismic Experiment in Peru:results from a wireless seismic Network Igor Stubailo,deployed in Peru. UCLA seismic line in Peru Lake Titicaca

2009-01-01T23:59:59.000Z

186

Localized Low-Weight Graph and Its Applications in Wireless Ad Hoc Networks  

E-Print Network [OSTI]

with O(log n) bits) and small computation cost, where n is the number of wireless nodes. Test results through multi- hop wireless links by using intermediate nodes to relay the message. Consequently, each if the Euclidean distance uv is less than one unit. Wireless ad hoc networks require special treatment

187

Eventbased Control for Wirelessly Networked Systemsy y  

E-Print Network [OSTI]

systems Transportation networksHome automationIndustrial automation Home Network M i h bi i ProcessOre Waste A typical communication architecture for industrial automation and control Remote Clients Workplaces System Servers Operator EngineeringMaintenance Control Network Process Automation Process

Johansson, Karl Henrik

188

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

E-Print Network [OSTI]

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

Liang, Weifa

189

FUNDAMENTAL PERFORMANCE LIMITS OF WIRELESS SENSOR NETWORKS  

E-Print Network [OSTI]

on each of the sensors (e.g., solar energy sources), our analysis concludes that the maximum sustainable throughput in energy-constrained sensor networks scales worse than the capacity based on interference among. In this case, when the number of nodes is sufficiently high, the energy-constrained network capacity dominates

Li, Baochun

190

Ivan Stojmenovic 1 Wireless Sensor Networks  

E-Print Network [OSTI]

6 Sensor networks: Applications · Nature · Wildlife ­ Great Duck Island (Berkeley 2002) · Home) · Prescribed fires · Phased deployment, beginning August 2004 Measure Temperature, Relative Humidity, Wind to change batteries ­ [seals change the fur :) ] · Network can be very sparse Ivan Stojmenovic 15 Wildlife

Stojmenovic, Ivan

191

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

192

Routing with Mutual Information Accumulation in Wireless Networks  

E-Print Network [OSTI]

We investigate optimal routing and scheduling strategies for multi-hop wireless networks with rateless codes. Rateless codes allow each node of the network to accumulate mutual information with every packet transmission. This enables a significant performance gain over conventional shortest path routing. Further, it also outperforms cooperative communication techniques that are based on energy accumulation. However, it creates complex and combinatorial networking decisions concerning which nodes participate in transmission, and which decode ordering to use. We formulate the general problem as a combinatorial optimization problem and then make use of several structural properties to simplify the solution and derive an optimal greedy algorithm. Although the reduced problem still has exponential complexity, using the insight obtained from the optimal solution to a line network, we propose two simple heuristics that can be implemented in polynomial time in a distributed fashion and compare them with the optimal s...

Urgaonkar, Rahul

2010-01-01T23:59:59.000Z

193

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

E-Print Network [OSTI]

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

Chen, Sheng-Wei

194

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

E-Print Network [OSTI]

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

Chen, Ling-Jyh

195

Novel Energy-Saving Design to Enable Green Multi-radio Fiber-Wireless Access Networks  

Science Journals Connector (OSTI)

This paper focuses on the high energy consumption of fiber-wireless access networks, and proposes energy-saving algorithms towards different parts of the networks. The OPNET is...

Han, Pengchao; Liu, Yejun; Guo, Lei; Yu, Yinpeng; Zhang, Lincong

196

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

E-Print Network [OSTI]

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 ...

Mani, Pradeepkumar

2008-12-08T23:59:59.000Z

197

A novel MAC scheduler to minimize the energy consumption in a Wireless Sensor Network  

Science Journals Connector (OSTI)

The rising success of the Internet of Things has led the Wireless Sensor Networks to play an important role in many fields, ranging from military to civilian applications. However, since sensor nodes are battery powered, communication protocols and applications ... Keywords: Duty cycle, Energy saving, MAC scheduler, Performance evaluation, Wireless Sensor Network

Luca Anchora; Antonio Capone; Vincenzo Mighali; Luigi Patrono; Francesco Simone

2014-05-01T23:59:59.000Z

198

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

E-Print Network [OSTI]

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

Culler, David E.

199

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

E-Print Network [OSTI]

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

California at Berkeley, University of

200

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

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Power Controlled Minimum Frame Length Scheduling in TDMA Wireless Networks with  

E-Print Network [OSTI]

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

Arabshahi, Payman

202

A Study on the Use of Wireless Sensor Networks in a Retail Store  

E-Print Network [OSTI]

A Study on the Use of Wireless Sensor Networks in a Retail Store Dawud Gordon, Michael Beigl wireless sensor network technology in retail stores. The study was carried out in several steps. · First a retail store application. Here we collected experiences about the problems in the application

Beigl, Michael

203

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

E-Print Network [OSTI]

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

Voigt, Thiemo

204

An integrated soft handoff approach to IP fast reroute in wireless mobile networks  

Science Journals Connector (OSTI)

This paper presents an integrated approach to IP fast reroute (IPFRR) of both unicast and multicast paths in wireless mobile networks. A distinct feature of the proposed approach is that, instead of modifying existing routing protocols, it employs a ... Keywords: IP fast reroute, XORP, soft handoff, wireless mobile networks

S. Cevher; T. Chen; I. Hokelek; J. Kang; V. Kaul; Y. J. Lin; M. Pang; M. Rodoper; S. Samtani; C. Shah; J. Bowcock; G. B. Rucker; J. L. Simbol; A. Staikos

2010-01-01T23:59:59.000Z

205

Intelligent stale-frame discards for real-time video streaming over wireless ad hoc networks  

Science Journals Connector (OSTI)

This paper presents intelligent early packet discards (I-EPD) for real-time video streaming over amultihop wireless ad hoc network. In a multihop wireless ad hoc network, the quality of transferring real-time video streams could be seriously degraded, ...

Tsang-Ling Sheu; Yung-Shih Chi

2009-01-01T23:59:59.000Z

206

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

E-Print Network [OSTI]

-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

Zhou, Xiangyun "Sean"

207

Delay Bounded Rate and Power Control in Energy Harvesting Wireless Networks  

E-Print Network [OSTI]

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

Rajan, Dinesh

208

Distributed detection and fusion in a large wireless sensor network of random size  

Science Journals Connector (OSTI)

For a wireless sensor network (WSN) with a random number of sensors, we propose a decision fusion rule that uses the total number of detections reported by local sensors as a statistic for hypothesis testing. We assume that the signal power attenuates ... Keywords: decision fusion, deflection coefficient, distributed detection, wireless sensor networks

Ruixin Niu; Pramod K. Varshney

2005-09-01T23:59:59.000Z

209

An integrated system based on wireless sensor networks for patient monitoring, localization and tracking  

Science Journals Connector (OSTI)

This works describes the system LAURA which provides patient localization, tracking and monitoring services within nursing institutes through a wireless sensor network. The system is composed of three functional blocks: a localization and tracking engine ... Keywords: E-health, Indoor localization, Wireless sensor network

Alessandro Redondi; Marco Chirico; Luca Borsani; Matteo Cesana; Marco Tagliasacchi

2013-01-01T23:59:59.000Z

210

Wireless sensor networks and service-oriented architecture, as suitable approaches to be applied into ITS  

Science Journals Connector (OSTI)

In this paper, Wireless Sensor Networks (WSN) and Service-Oriented Architecture (SOA) approaches are analyzed given that represent both emerging and key role for Intelligent Transportations Systems (ITS). However, It is worth noting that WSN and SOA ... Keywords: ITS, SOA, WSN, intelligent transportation systems, navigation, parking systems, service-oriented architecture, web services, wireless sensors networks

Luis Felipe Herrera-Quintero; Francisco Maciá-Pérez; Diego Marcos-Jorquera; Virgilio Gilart-Iglesias

2012-05-01T23:59:59.000Z

211

Design and Implementation an Energy-Aware Routing Mechanism for Solar Wireless Sensor Networks  

Science Journals Connector (OSTI)

Due to the thriving development of wireless sensor networks (WSNs) and solar power generation technology, coupled with the continuous progress of the semiconductor industry, solar cell photoelectrical conversion efficiency has increased accordingly, ... Keywords: Wireless sensor networks, solar power, energy-aware, routing

Hung-Chi Chu; Wei-Tsung Siao; Wei-Tai Wu; Sheng-Chih Huang

2011-09-01T23:59:59.000Z

212

Anomaly Detection in Medical Wireless Sensor Networks using SVM and Linear Regression Models  

Science Journals Connector (OSTI)

This paper details the architecture and describes the preliminary experimentation with the proposed framework for anomaly detection in medical wireless body area networks for ubiquitous patient and healthcare monitoring. The architecture integrates novel ... Keywords: Healthcare Monitoring, Malicious Attacks, Medical Systems, Patient Anomaly Detection, Sensor Faults, Wireless Body Area Networks

Osman Salem, Alexey Guerassimov, Ahmed Mehaoua, Anthony Marcus, Borko Furht

2014-01-01T23:59:59.000Z

213

An Energy-Efficient Communication Scheme in Wireless Cable Sensor Networks  

E-Print Network [OSTI]

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

Rowe, Neil C.

214

Optimal Transmission Range for Wireless Ad Hoc Networks Based on Energy Efficiency  

E-Print Network [OSTI]

, and security issues, we investigate the efficiency of energy consumption in wireless ad hoc networks-efficient mechanisms is of importance. In wireless ad hoc networks, energy consumption at each node is mainly due energy consumption of system operation and data processing, energy consumption economy of radio

Deng, Jing

215

TinyNode: a comprehensive platform for wireless sensor network applications  

Science Journals Connector (OSTI)

We introduce the TinyNode platform for wireless sensor networks. Supporting both research and industrial deployments, the platform offers communication ranges that exceed current platforms by a factor of 3 to 5, while consuming similar energy. It comes ... Keywords: embedded systems, wireless sensor networks

Henri Dubois-Ferričre; Laurent Fabre; Roger Meier; Pierre Metrailler

2006-04-01T23:59:59.000Z

216

Energy efficient management framework for multihop TDMA-based wireless networks  

E-Print Network [OSTI]

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

Boutaba, Raouf

217

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

E-Print Network [OSTI]

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

Massachusetts at Amherst, University of

218

Implementing a green bicycle alliance using a wireless sensor network  

Science Journals Connector (OSTI)

This study used the wireless sensor network (WSN) technique to design a bike device module, a bike path establishment module and a cloud service module. These three modules were used to address issues related to cycling activities, including green power supply, activity and health records, trajectory monitoring and group positioning and immediate safety issues. GPS was not required, and as long as the cyclists remained on the paths provided by the bike path establishment module and used the cloud service module, the previously mentioned issues could be addressed. The cloud service module included a path establishment simulation system that could enable a path manager to simulate paths before they were physically provided, to determine the ideal establishment method for providing wireless sensor nodes. This study use the Danshui Golden Waterfront in northern Taiwan to implement on-site establishment and installation.

Haw-Yun Shin; Chung-Ming Own

2014-01-01T23:59:59.000Z

219

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

220

UCIT Data Network Standards Campus Wireless Network Standard  

E-Print Network [OSTI]

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

Habib, Ayman

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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

LOCATION BASED NETWORK OPTIMIZATIONS FOR MOBILE WIRELESS NETWORKS  

E-Print Network [OSTI]

;Abstract With an expected annual doubling in mobile data volumes, wireless operators are likely to face to be instantaneously available. Secondly, two-hop relaying is considered for improving throughput and outage performance of downlink transmissions from a Wi-Fi hotspot to mo- bile destination nodes. The main focus

Hansen, René Rydhof

222

Int. J. Wireless and Mobile Computing, Vol. 2, No. 4, 2007 237 Interworking of 3G cellular networks and  

E-Print Network [OSTI]

and wireless LANs Wei Song and Weihua Zhuang* Centre for Wireless Communications, Department of ElectricalInt. J. Wireless and Mobile Computing, Vol. 2, No. 4, 2007 237 Interworking of 3G cellular networks@bbcr.uwaterloo.ca E-mail: wzhuang@bbcr.uwaterloo.ca *Corresponding author Aladdin Saleh Wireless Technology Department

Zhuang, Weihua

223

An adaptive elliptical anomaly detection model for wireless sensor networks  

Science Journals Connector (OSTI)

Abstract Wireless Sensor Networks (WSNs) provide a low cost option for monitoring different environments such as farms, forests and water and electricity networks. However, the restricted energy resources of the network impede the collection of raw monitoring data from all the nodes to a single location for analysis. This has stimulated research into efficient anomaly detection techniques to extract information about unusual events such as malicious attacks or faulty sensors at each node. Many previous anomaly detection methods have relied on centralized processing of measurement data, which is highly communication intensive. In this paper, we present an efficient algorithm to detect anomalies in a decentralized manner. In particular, we propose a novel adaptive model for anomaly detection, as well as a robust method for modeling normal behavior. Our evaluation results on both real-life and simulated data sets demonstrate the accuracy of our approach compared to existing methods.

Masud Moshtaghi; Christopher Leckie; Shanika Karunasekera; Sutharshan Rajasegarar

2014-01-01T23:59:59.000Z

224

Wireless Networking Projects Ashok K. Agrawala  

E-Print Network [OSTI]

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

Gruner, Daniel S.

225

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

E-Print Network [OSTI]

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

Heidemann, John

226

Mathematical Modelling of End-to-End Packet Delay in Multi-hop Wireless Networks and their  

E-Print Network [OSTI]

Mathematical Modelling of End-to-End Packet Delay in Multi-hop Wireless Networks Communications and Information Systems Research Group Department of Electronic and Electrical EngineeringS) provisioning in multi-hop wireless networks. The multi-hop wireless technology increases capacity and coverage

Jones, Peter JS

227

Multicast Capacity in Mobile Wireless Ad Hoc Network with Infrastructure Support  

E-Print Network [OSTI]

. Index Terms--Wireless ad hoc network; multicast capacity; mobility; infrastructure; hybrid network that infrastructure can offer a linear capacity increase in hybrid network, when the number of base stations increases the multicast capacity in a static hybrid network with infrastructure support. Establishing the multicast tree with the

Wang, Xinbing

228

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

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

229

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

E-Print Network [OSTI]

) intelligent control, and (3) home automation [1]. Home automation is the use of products to link services presents a novel framework for intelligent temperature control in smart homes using Wireless Sensor Home; Intelligent Temperature Control; Wireless Sensor Network; WSN; Context Awareness; Geostatistical

Fan, Jeffrey

230

An Optimal Energy Allocation Algorithm for Energy Harvesting Wireless Sensor Networks  

E-Print Network [OSTI]

. Traditionally, a sensor node is mainly powered by a non-rechargeable battery, which has a limited energy storage by enabling the wireless sensor nodes to replenish energy from ambient sources, such as solar, windAn Optimal Energy Allocation Algorithm for Energy Harvesting Wireless Sensor Networks Shaobo Mao

Wong, Vincent

231

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

E-Print Network [OSTI]

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

Singh, Suresh

232

A high-accuracy, low-cost localization system for wireless sensor networks  

Science Journals Connector (OSTI)

The problem of localization of wireless sensor nodes has long been regarded as very difficult to solve, when considering the realities of real world environments. In this paper, we formally describe, design, implement and evaluate a novel localization ... Keywords: event distribution, laser, localization, wireless sensor network

Radu Stoleru; Tian He; John A. Stankovic; David Luebke

2005-11-01T23:59:59.000Z

233

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

E-Print Network [OSTI]

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

Cauwenberghs, Gert

234

ORNL Visitor Wireless Network: Registration Instructions As a visitor to Oak Ridge National Laboratory (ORNL), wireless computer networking is available to you in many of our  

E-Print Network [OSTI]

Laboratory (ORNL), wireless computer networking is available to you in many of our buildings. To gain access encryption method to disabled. d. Apply these new settings and reboot your computer. 2. Open your internet with the Neutron School program and grant access to the network. Badge Number: NEUXRAY If your browser does

235

ORNL Visitor Wireless Network: Registration Instructions As a visitor to Oak Ridge National Laboratory (ORNL), wireless computer networking is available to you in many of our  

E-Print Network [OSTI]

with the Neutron School program and grant access to the network. Badge Number: NEUXRAY If your browser does Laboratory (ORNL), wireless computer networking is available to you in many of our buildings. To gain access encryption method to disabled. d. Apply these new settings and reboot your computer. 2. Open your internet

Pennycook, Steve

236

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

SciTech Connect (OSTI)

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.

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

2003-12-01T23:59:59.000Z

237

Multi-layer Genetic Algorithm for Maximum Disjoint Reliable Set Covers Problem in Wireless Sensor Networks  

Science Journals Connector (OSTI)

Densely deployment of sensors is generally employed in wireless sensor networks to ensure complete target coverage for a long period of time. Many sensors scheduling techniques have been recently proposed for pro...

Mayyadah F. Abdulhalim; Bara’a A. Attea

2014-08-01T23:59:59.000Z

238

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

E-Print Network [OSTI]

, 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

Roedig, Utz

239

Research on Smart Substation Equipment Condition Monitoring System Based on Wireless Sensor Networks  

Science Journals Connector (OSTI)

Reference to characteristics of wireless sensor networks (WSNs) technology and the three-tier architecture of smart substation, the paper designs an on-line condition monitoring system of smart substation equipme...

Jie He; Xiaoqing Huang; Yang Yang

2012-01-01T23:59:59.000Z

240

Layered View of QoS Issues in IP-Based Mobile Wireless Networks Honeywell Labs  

E-Print Network [OSTI]

Layered View of QoS Issues in IP-Based Mobile Wireless Networks Haowei Bai Honeywell Labs 3660 Technology Drive, Minneapolis, MN 55418 E-mail: haowei.bai@honeywell.com Mohammed Atiquzzaman School

Minnesota, University of

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

AIDA: Adaptive Application Independent Data Aggregation in Wireless Sensor Networks1  

E-Print Network [OSTI]

aggregation, sensor networks, adaptive algorithms, feedback control, energy conservation, congestion control such as small instruction and data memory, constrained energy resources, short communication radii, and a low paradigm in distributed wireless communication technology, have been proposed for various applications

Stankovic, John A.

242

Mobile power management for maximum battery life in wireless communication networks  

Science Journals Connector (OSTI)

We address the problem of how a mobile node in a wireless network should vary its transmitter power so that energy consumption is minimized, subject to fixed quality-of-service constraints. Optimal solutions are obtained for channels with stationary, ...

John M. Rulnick; Nicholas Bambos

1996-03-01T23:59:59.000Z

243

An Energy Efficient On-Demand Routing Scheme Based on Link Quality for Wireless Sensor Networks  

Science Journals Connector (OSTI)

Most of legacy routing schemes for wireless sensor networks do not consider the retransmission energy consumption when they predict the transmission energy consumption. They usually select the path based on ho...

Bo-Gyoung Kim; Won Yeoul Lee; Seok-Yeol Heo…

2011-01-01T23:59:59.000Z

244

A study of cross layer trade-offs in qos and security of wireless networks  

Science Journals Connector (OSTI)

This dissertation research is aimed at understanding the tradeoffs among different performance metrics of wireless networks namely, throughput, complexity, energy efficiency, Quality of Service (QoS), robustness, and security, ...

Mohamed A. Haleem / R. Chandramouli

2005-01-01T23:59:59.000Z

245

The Design and Implement of Wireless Network of Intelligent Lighting in Classroom  

Science Journals Connector (OSTI)

After introducing the traditional lighting instrument and its control character in this paper, I use the wireless communication technology---ZigBee to realize the intelligent lighting in classroom. Network for...

Fashan Yu; Mingjie Zong; Chaochao Han

2012-01-01T23:59:59.000Z

246

On the Energy Benefit of Network Coding for Wireless Multiple Unicast  

E-Print Network [OSTI]

} 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

Boucherie, Richard J.

247

Intrusion Detection Algorithm Based on Neighbor Information Against Sinkhole Attack in Wireless Sensor Networks  

Science Journals Connector (OSTI)

......editor: Zhangbing Zhou Recently, wireless sensor networks (WSNs) have been widely used in many applications, such as Smart Grid. However, it is generally known that WSNs are energy limited, which makes WSNs vulnerable to malicious attacks. Among......

Guangjie Han; Xun Li; Jinfang Jiang; Lei Shu; Jaime Lloret

2014-05-01T23:59:59.000Z

248

Creation and maintenance of a communication tree in wireless sensor networks  

E-Print Network [OSTI]

A local reconfiguration algorithm (INP) for reliable routing in wireless sensor networks that consist of many static (fixed) energy-constrained nodes is introduced in the dissertation. For routing around crash fault nodes, a communication tree...

Jung, Eun Jae

2008-10-10T23:59:59.000Z

249

Creation and maintenance of a communication tree in wireless sensor networks  

E-Print Network [OSTI]

A local reconfiguration algorithm (INP) for reliable routing in wireless sensor networks that consist of many static (fixed) energy-constrained nodes is introduced in the dissertation. For routing around crash fault nodes, a communication tree...

Jung, Eun Jae

2009-05-15T23:59:59.000Z

250

A rate-adaptive MAC protocol for multi-Hop wireless networks  

Science Journals Connector (OSTI)

Wireless local area networks (W-LANs) have become increasingly popular due to the recent availability of affordable devices that are capable of communicating at high data rates. These high rates are possible, in part, through new modulation schemes that ...

Gavin Holland; Nitin Vaidya; Paramvir Bahl

2001-07-01T23:59:59.000Z

251

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

E-Print Network [OSTI]

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, ...

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

2010-01-01T23:59:59.000Z

252

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

E-Print Network [OSTI]

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

Lyu, Michael R.

253

Optimization of Wireless Access Point Placement in Realistic Urban Heterogeneous Networks  

E-Print Network [OSTI]

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

Yu, Wei

254

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

E-Print Network [OSTI]

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

Kumar, Sunil

255

Securing Ad Hoc Wireless Networks Against Data Injection Attacks Using Firewalls  

E-Print Network [OSTI]

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

Kasera, Sneha Kumar

256

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

E-Print Network [OSTI]

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

Bencsáth, Boldizsár

257

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

E-Print Network [OSTI]

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

Jafar, Syed A.

258

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

E-Print Network [OSTI]

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

Wu, Jie

259

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

E-Print Network [OSTI]

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

Jay Yang, Shanchieh

260

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

E-Print Network [OSTI]

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

Pande, Partha Pratim

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

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

E-Print Network [OSTI]

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

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

2003-01-01T23:59:59.000Z

262

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

SciTech Connect (OSTI)

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.

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

2002-10-01T23:59:59.000Z

263

A truthful auction mechanism for channel allocation in multi-radio, multi-channel non-cooperative wireless networks  

Science Journals Connector (OSTI)

Due to users' fast-growing demands, wireless spectrum is becoming a more and more scarce resource. However, the state of spectrum usage shows that while large chunks of spectrum are left idle at many places, many emerging wireless applications cannot ... Keywords: Channel allocation, Game theory, Mechanism design, Wireless network

Zuying Wei, Tianrong Zhang, Fan Wu, Xiaofeng Gao, Guihai Chen, Ping Yi

2014-04-01T23:59:59.000Z

264

Commercial  

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

Residential Commercial Commercial Industrial Lighting Energy Smart Grocer Program HVAC Program Shell Measures Commercial Kitchen & Food Service Equipment Plug Load New...

265

Energy Efficient Greedy Link Scheduling and Power Control in wireless networks  

E-Print Network [OSTI]

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.

Sridharan, Arun

2012-01-01T23:59:59.000Z

266

Poster abstract: wireless sensor network characterization - application to demand response energy pricing  

Science Journals Connector (OSTI)

This poster presents latency and reliability characterization of wireless sensor network as applied to an advanced building control system for demand response energy pricing. A test network provided the infrastructure to extract round trip time and packet ... Keywords: advanced building control, demand response energy pricing

Nathan Ota; Dan Hooks; Paul Wright; David Auslander; Therese Peffer

2003-11-01T23:59:59.000Z

267

Rapid Development and Flexible Deployment of Adaptive Wireless Sensor Network Applications  

E-Print Network [OSTI]

-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

Roman, Gruia-Catalin

268

End-to-End Performance Characteristics in Energy-Aware Wireless Sensor Networks  

E-Print Network [OSTI]

Dressler Armin Heindl Computer Networks and Communication Systems University of Erlangen-Nuremberg 91058) protocol for wireless sensor networks (WSN). WSNs are composed of battery-driven communication entities insight into the behavior of adaptive listening. As op- posed to transient experiments on hardware, we

Breu, Ruth

269

Minimum energy decentralized estimation in a wireless sensor network with correlated sensor noises  

Science Journals Connector (OSTI)

Consider the problem of estimating an unknown parameter by a sensor network with a fusion center (FC). Sensor observations are corrupted by additive noises with an arbitrary spatial correlation. Due to bandwidth and energy limitation, each sensor is ... Keywords: decentralized estimation, energy efficiency, power control, wireless sensor networks

Alexey Krasnopeev; Jin-Jun Xiao; Zhi-Quan Luo

2005-09-01T23:59:59.000Z

270

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

E-Print Network [OSTI]

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

California at Davis, University of

271

RMAC: A Routing-Enhanced Duty-Cycle MAC Protocol for Wireless Sensor Networks  

E-Print Network [OSTI]

hoc networks, such as IEEE 802.11, require a wireless device to remain awake to monitor the medium application usually generates very light traffic on the network, this idle-listening mechanism is very inefficient and wastes significant energy. To mitigate this energy consumption of idle listening, duty

Riedi, Rudolf H.

272

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

E-Print Network [OSTI]

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 ...

Fariborzi, Hossein

273

System-level Calibration for Fusion-based Wireless Sensor Networks Guoliang Xing1  

E-Print Network [OSTI]

on data traces collected in a real vehicle detection experiment. The results demonstrate that our system network systems for target detection [9], localiza- tion [12], and classification [5]. The major challengeSystem-level Calibration for Fusion-based Wireless Sensor Networks Rui Tan1 Guoliang Xing1 Zhaohui

274

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

E-Print Network [OSTI]

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

Shihada, Basem

275

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

E-Print Network [OSTI]

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

Srikant, Rayadurgam

276

An approach combining SysML and modelica for modelling and validate wireless sensor networks  

Science Journals Connector (OSTI)

Wireless Sensor Networks (WSN) have large industrial applications, however the modelling is still a very complex task in view of the nature of these networks, namely because they are distributed, embedded and have strong interactions between the hardware ... Keywords: SysML, modelica, MDE, WSN, modelling, simulation, virtual verification

Ahmed Hammad; Hassan Mountassir; Samir Chouali

2013-07-01T23:59:59.000Z

277

Modeling and Analysis of Energy Harvesting Nodes in Wireless Sensor Networks  

E-Print Network [OSTI]

with an energy harvesting device that collects energy from ambient sources such as motion, light, and heat or motion energy harvesting in a body sensor network. We assume that at the end of each time slot the deviceModeling and Analysis of Energy Harvesting Nodes in Wireless Sensor Networks Alireza Seyedi

Sikdar, Biplab

278

Energy-Efficient Modulation Design for Reliable Communication in Wireless Networks  

E-Print Network [OSTI]

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

Gursoy, Mustafa Cenk

279

Truck-based mobile wireless sensor networks for the experimental observation of  

Science Journals Connector (OSTI)

Heavy vehicles driving over a bridge create a complex dynamic phenomenon known as vehicle–bridge interaction. In recent years, interest in vehicle–bridge interaction has grown because a deeper understanding of the phenomena can lead to improvements in bridge design methods while enhancing the accuracy of structural health monitoring techniques. The mobility of wireless sensors can be leveraged to directly monitor the dynamic coupling between the moving vehicle and the bridge. In this study, a mobile wireless sensor network is proposed for installation on a heavy truck to capture the vertical acceleration, horizontal acceleration and gyroscopic pitching of the truck as it crosses a bridge. The vehicle-based wireless monitoring system is designed to interact with a static, permanent wireless monitoring system installed on the bridge. Specifically, the mobile wireless sensors time-synchronize with the bridge's wireless sensors before transferring the vehicle response data. Vertical acceleration and gyroscopic pitching measurements of the vehicle are combined with bridge accelerations to create a time-synchronized vehicle–bridge response dataset. In addition to observing the vehicle vibrations, Kalman filtering is adopted to accurately track the vehicle position using the measured horizontal acceleration of the vehicle and positioning information derived from piezoelectric strip sensors installed on the bridge deck as part of the bridge monitoring system. Using the Geumdang Bridge (Korea), extensive field testing of the proposed vehicle–bridge wireless monitoring system is conducted. Experimental results verify the reliability of the wireless system and the accuracy of the vehicle positioning algorithm.

Junhee Kim; Jerome P Lynch; Jong-Jae Lee; Chang-Geun Lee

2011-01-01T23:59:59.000Z

280

Power and spectrum efficient communications in wireless ad hoc networks  

E-Print Network [OSTI]

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

Qu, Qi

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

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

E-Print Network [OSTI]

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

Dai, Huaiyu

282

A Cross-Layer QoE-Based Approach for Event-Based Multi-Tier Wireless Multimedia Sensor Networks  

Science Journals Connector (OSTI)

Wireless Multimedia Sensor Networks (WMSNs) are attracting attention from both academic and industrial environments due to the rapid development of low-cost multimedia sensors. With the enhancement of the multimedia content captured by multimedia devices, ... Keywords: Event Detection, Forward Error Correction (FEC), Multi-Tier Routing Protocol, Quality of Experience (QoE), Wireless Multimedia Sensor Networks (WMSNs)

Denis Rosário, Zhongliang Zhao, Torsten Braun, Eduardo Cerqueira

2014-01-01T23:59:59.000Z

283

Unmanned Ground Vehicle Navigation in Coordinate-Free and Localization-Free Wireless Sensor and Actuator Networks  

Science Journals Connector (OSTI)

We present a set of algorithms for the navigation of Unmanned Ground Vehicles (UGVs) towards a set of pre-identified target nodes in coordinate-free and localization-free wireless sensor and actuator networks. The UGVs are equipped with a set of wireless ... Keywords: Localization-free navigation, Sensor and actuator networks, UGV navigation

Guyu Zhang, Christian A. Duncan, Jinko Kanno, Rastko R. Selmic

2014-06-01T23:59:59.000Z

284

JOURNAL OF LATEX CLASS FILES, VOL. XX, NO. XX, XX XXXX 1 Capacity of Hybrid Wireless Networks with  

E-Print Network [OSTI]

in the infrastructure mode, i.e., with the help of base stations. We find that the throughput capacity of a hybrid in the infrastructure mode. We show that the throughput capacity of the hybrid directional wireless network is ( nW1 2LJOURNAL OF LATEX CLASS FILES, VOL. XX, NO. XX, XX XXXX 1 Capacity of Hybrid Wireless Networks

Wang, Xinbing

285

Queue management based duty cycle control for end-to-end delay guarantees in wireless sensor networks  

Science Journals Connector (OSTI)

In this paper, we propose an analytical method for duty cycle adaptation in wireless sensor networks so that delay requirement is guaranteed while power consumption is minimized. The proposed method, named Dual-QCon, provides a formal method for stabilizing ... Keywords: Delay guarantee, Duty cycle control, Wireless sensor networks

Heejung Byun; Soogook Son; Jungmin So

2013-08-01T23:59:59.000Z

286

Energy-efficient mobile target detection in Wireless Sensor Networks with random node deployment and partial coverage  

Science Journals Connector (OSTI)

This paper addresses the problem of engineering energy-efficient target detection applications, using unattended Wireless Sensor Networks (WSNs) with random node deployment and partial coverage, for long-lasting surveillance of areas of interest. As ... Keywords: Latency before detection, Optimization toolbox, Partial coverage, Probability of missed detection, Random node deployment, Target detection, Wireless Sensor Network (WSN)

Paolo Medagliani; Jérémie Leguay; Gianluigi Ferrari; Vincent Gay; Mario Lopez-Ramos

2012-06-01T23:59:59.000Z

287

Distributed target tracking and boundary estimation in wireless sensor networks  

Science Journals Connector (OSTI)

We study the problem of target tracking and boundary detection of a substance diffusing from a mobile source using a wireless sensor network. We present a Prediction-based Mobility Adaptive Tracking (P-MAT algorithm to study the tradeoff among energy, accuracy of tracking, coverage and boundary estimation. P-MAT minimises overall energy consumption by incorporating adaptivity in two forms: (1) the size of the active region and (2) modulation of the sampling rate. It uses adaptive Kalman filtering to predict the target's future location and velocity. The predicted target location determines a set of sensors surrounding that location to be activated known as the active region. Sensors in the active region are responsible for target tracking and boundary detection. In this article, we include dynamic boundary estimation. Boundary estimation in many situations can be performed efficiently using a subset of nodes within the vicinity of the phenomenon. This subset of nodes in our algorithm is the set of nodes in the active region. As the substance spreads, sensors in the active region determine if additional sensors outside of the active region are needed to enclose the boundary. Results from simulation experiments show that P-MAT can perform both tracking and boundary.

Jennifer Yick; Biswanath Mukherjee; Dipak Ghosal

2008-01-01T23:59:59.000Z

288

Doppler effect on target tracking in wireless sensor networks  

Science Journals Connector (OSTI)

This paper presents a new detection algorithm and high speed/accuracy tracker for tracking ground targets in acoustic wireless sensor networks (WSNs). Our detection algorithm naturally accounts for the Doppler effect which is an important consideration for tracking higher-speed targets. This algorithm employs Kalman filtering (KF) with the weighted sensor position centroid being used as the target position measurement. The weighted centroid makes the tracker to be independent of the detection model and changes the tracker to be near optimal, at least within the detection parameters used in this study. Our approach contrasts with previous approaches that employ more sophisticated tracking algorithms with higher computational complexity and use a power law detection model. The power law detection model is valid only for low speed targets and is susceptible to mismatch with detection by the sensors in the field. Our tracking model also enables us to uniquely study various environmental effects on track accuracy, such as the Doppler effect, signal collision, signal delay, and different sampling time. Our WSN tracking model is shown to be highly accurate for a moving target in both linear and accelerated motions. The computing speed is estimated to be 50–100 times faster than the previous more sophisticated methods and track accuracy compares very favorably.

Youngwon Kim An; Seong-Moo Yoo; Changhyuk An; B. Earl Wells

2013-01-01T23:59:59.000Z

289

Maintaining Sensor Networks Perpetually Via Wireless Recharging Mobile Vehicles  

E-Print Network [OSTI]

. For example, in a solar harvesting system, statistics has shown that the differences of energy generating@cityu.edu.hk, linxl@mail.sysu.edu.cn Abstract--The emerging wireless energy transfer technology based on magnetic and perpetual energy source to sensors. In this paper we study the use of minimum number of wireless charging

Liang, Weifa

290

What Is the Use of Collision Detection (in Wireless Networks)?  

E-Print Network [OSTI]

is too pessimistic. Most wireless devices can distinguish at least four states: (i) either the wireless, or it is silently listening, usually allowing it to differentiate between the other three states: (ii) the media the listening node can sense that there are transmissions happening, e.g. there is energy on the channel

291

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

E-Print Network [OSTI]

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...

Choi, Dae H.

2010-01-16T23:59:59.000Z

292

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

E-Print Network [OSTI]

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.

Ahvar, Ehsan; Piran, Mohammad Jalil

2011-01-01T23:59:59.000Z

293

Design and optimization of piezoelectric impact-based micro wind energy harvester for wireless sensor network  

Science Journals Connector (OSTI)

Abstract The purpose of the current study is to design and optimize a piezoelectric impact-based micro wind energy harvester (PIMWEH) as a power source for wireless sensor networks. First, using new PIMWEH design, numerical simulation, and experimental comparison analysis, we determined the most durable PIMWEH shape for application as a power source of WSNs. The experimental results show that the optimized PIMWEH generated 2.8 mW (RMS value) and did not crack within 40 h. Second, to supply power for sensor operation, we performed an experiment using a rectifying circuit, an AC–DC converter, and an electrical charger. The experimental results show a pure DC voltage signal of 3.3 V, and the output power was 1.0 mW (3.1 mW/cm3). A charging energy of 0.845 J was obtained in 24 min. Third, we calculated the efficiency of the PIMWEH to evaluate its performance. Using a three-step energy conversion process (using wind turbine, PZT, and LTC3588-1), an overall PIMWEH power conversion efficiency of 3.2% was obtained. For one day, the PIMWEH could supply power that is 6263 to 25055 times the power requirement of a commercialized ZigBee transmission. In addition, transmitting signals at intervals from 3.4 to 13 s was made possible.

Hyun Jun Jung; Yooseob Song; Seong Kwang Hong; Chan Ho Yang; Sung Joo Hwang; Se Yeong Jeong; Tae Hyun Sung

2014-01-01T23:59:59.000Z

294

Multiple-antenna systems in ad-hoc wireless networks  

E-Print Network [OSTI]

The increasing demand for wireless communication services has resulted in crowding of the electromagnetic spectrum. The "spectral-commons" model, where a portion of the electromagnetic spectrum is public and used on an ...

Govindasamy, Siddhartan, 1975-

2008-01-01T23:59:59.000Z

295

The Energy Cost Model of Clustering Wireless Sensor Network Architecture  

Science Journals Connector (OSTI)

The advent of technology has facilitated the development of small, low power devices that combine programmable general purpose computing with multiple sensing and wireless communication capability. This article d...

Yanjun Zhang; Xiaoyun Teng; Hongyi Yu; Hanying Hu

2005-01-01T23:59:59.000Z

296

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

E-Print Network [OSTI]

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

Huang, Jianwei

297

Energy Efficient Joint Scheduling and Power Control for Wireless Sensor Networks  

E-Print Network [OSTI]

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

Krishnamachari, Bhaskar

298

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

E-Print Network [OSTI]

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

Yener, Aylin

299

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

E-Print Network [OSTI]

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

Ingram, Mary Ann

300

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

E-Print Network [OSTI]

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

Tsouri, Gill

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Adaptive Energy Saving Scheme for Downlink Elastic Traffic in Wireless Networks  

E-Print Network [OSTI]

Adaptive Energy Saving Scheme for Downlink Elastic Traffic in Wireless Networks Jongwook Lee, we propose several adaptive energy saving schemes that consider throughput and energy saving simultaneously. The proposed schemes are designed for an efficient tradeoff between throughput and energy saving

Bahk, Saewoong

302

Energy Harvesting Enabled Wireless Sensor Networks: Energy Model and Battery Dimensioning  

E-Print Network [OSTI]

, Battery Dimensioning 1. INTRODUCTION Advances in micro-electro-mechanical systems (MEMS) as a technologyEnergy Harvesting Enabled Wireless Sensor Networks: Energy Model and Battery Dimensioning Raul to the required energy for the communication process creates the necessity of temporal storage. Unfortu- nately

Politècnica de Catalunya, Universitat

303

Dynamic Aggregation Protocol for Wireless Sensor Networks Adel Mounir Said1  

E-Print Network [OSTI]

that deliver sensor data in an energy-efficient way to the sink. One of those techniques, it gathers sensors ­ NTI, Cairo, Egypt 2 RS2M Department, Telcom SudParis, Evry, France amounir@nti.sci.eg, awilliam Aggregation Protocol (DAP) to reduce the energy consumption in Wireless Sensor Networks (WSNs), which prolongs

Paris-Sud XI, Université de

304

Automated Construction of Fast and Accurate System-Level Models For Wireless Sensor Networks  

E-Print Network [OSTI]

Automated Construction of Fast and Accurate System-Level Models For Wireless Sensor Networks Lan S are evaluated via simulation. Notably, one such automatically produced model outperforms the most advanced design decisions. The modeling work in this paper is part of a project on automated synthesis of sensor

Dick, Robert

305

Cooperative Component-Based Software Deployment in Wireless Ad Hoc Networks  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

306

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

E-Print Network [OSTI]

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

Boyer, Edmond

307

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

E-Print Network [OSTI]

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

Brown, Timothy X.

308

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

E-Print Network [OSTI]

Design Considerations for a Large-Scale Wireless Sensor Network for Substation Monitoring Asis University City Blvd. Charlotte, NC 28223 Luke Van der Zel and Bienvenido Rodriguez Substations Group EPRI-Transmissions & Substations 9625 Research Drive Charlotte, NC 28262 Ralph McKosky Technology Innovation, Environment

Nasipuri, Asis

309

Demo Abstract: Wireless Sensor Network for Substation Monitoring: Design and Deployment  

E-Print Network [OSTI]

Demo Abstract: Wireless Sensor Network for Substation Monitoring: Design and Deployment Asis-Transmissions & Substations 9625 Research Drive Charlotte, NC 28262 {lvanderz,birodriguez} @epri.com Ralph McKosky, Joseph in a substation for monitoring the health of power subsystems such as circuit breakers, trans- formers

Nasipuri, Asis

310

Energy-Efficient Protocols for Wireless Networks with Adaptive MIMO Capabilities  

E-Print Network [OSTI]

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

Krunz, Marwan M.

311

Fusion of Decisions Transmitted Over Fading Channels in Wireless Sensor Networks  

E-Print Network [OSTI]

Fusion of Decisions Transmitted Over Fading Channels in Wireless Sensor Networks Biao Chen, Syracuse, NY 13244 Abstract Information fusion by utilizing multiple distributed sensors is studied in this work. We derive the optimal likelihood based fusion statistic for a parallel decision fusion problem

Chen, Biao

312

Wireless multimedia sensor and actor networks for the next generation power grid  

Science Journals Connector (OSTI)

Electrical power grid is undergoing a major renovation, to meet the power quality and power availability demands of the 21st century. The new power grid, which is also called as the smart grid, aims to integrate the recent technological advancements ... Keywords: Electrical power grid, Smart grid, Wireless multimedia sensor and actor network

Melike Erol-Kantarci; Hussein T. Mouftah

2011-06-01T23:59:59.000Z

313

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

E-Print Network [OSTI]

), 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

Rahnavard, Nazanin

314

How Wireless Power Charging Technology Affects Sensor Network Deployment and Routing  

E-Print Network [OSTI]

of environmental energy such as sunlight and acoustic vibra- tions [6]­[9]. However, the energy that a solar cell with a large solar cell; the low harvesting efficiency of small solar cells, together with uncontrollableHow Wireless Power Charging Technology Affects Sensor Network Deployment and Routing Bin Tong, Zi

Wang, Guiling

315

Intelligent Antenna Selection Decision in IEEE 802.15.4 Wireless Sensor Networks: An Experimental Analysis  

E-Print Network [OSTI]

.15.4 Wireless Sensor Networks (WSNs). This study provides us the basis to design and implement software defined environmental monitoring like wildlife tracking, habitat monitoring, forest fire detection, mine safety monitor to path loss, multipath fading, radiation characteristics, antenna orientation, and Doppler effects

Boyer, Edmond

316

Experiences with a High-Fidelity Wireless Building Energy Auditing Network  

E-Print Network [OSTI]

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 structuring principle is the un- derlying load tree, and a variety of techniques are described to disambiguate

Dutta, Prabal

317

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

E-Print Network [OSTI]

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

Stojmenovic, Ivan

318

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

E-Print Network [OSTI]

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

Wong, Vincent

319

TriopusNet: Automating Wireless Sensor Network Deployment and Replacement in Pipeline Monitoring  

E-Print Network [OSTI]

TriopusNet: Automating Wireless Sensor Network Deployment and Replacement in Pipeline Monitoring sensor net- work system for autonomous sensor deployment in pipeline monitoring. TriopusNet works by automatically releasing sensor nodes from a centralized repository located at the source of the water pipeline

Chu, Hao-hua

320

A cross-layer MAC and routing protocol based on slotted Aloha for Wireless Sensor Networks  

E-Print Network [OSTI]

in order to ease forwarding and to conserve energy. We have conducted simulation-based evaluations in wireless networks. Cross-layer techniques improve energy conservation in WSN [4, 5]. Hence, most cross are ecient solutions for energy conservation. They use MAC (Media Access Control) layer information

Brest, Université de

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Decentralized EnergyConserving and Coverage Preserving Protocols for Wireless Sensor Networks  

E-Print Network [OSTI]

Decentralized Energy­Conserving and Coverage­ Preserving Protocols for Wireless Sensor Networks CHI, energy conservation, computational geometry 1. INTRODUCTION The coverage problem has been widely studied; Hsin and Liu 2004; Gui and Mohapatra 2004]. This paper proposes several decentralized energy­conserving

Tseng, Yu-Chee

322

I3WSN: Industrial Intelligent Wireless Sensor Networks for indoor environments  

Science Journals Connector (OSTI)

Sensor Web Enablement (SWE) technologies have been successfully applied to a great variety of outdoor scenarios but, in practical terms, little effort has been applied for indoor environments, and even less in the field of industrial applications. This ... Keywords: Indoor environments, Industrial environments, Industrial safety, Sensor Observation Service (SOS), Sensor Web Enablement (SWE), Wireless Sensor Networks (WSNs)

Pablo Giménez; Benjamín Molina; Jaime Calvo-Gallego; Manuel Esteve; Carlos E. Palau

2014-01-01T23:59:59.000Z

323

Low Cost Monitoring and Intruders Detection using Wireless Video Sensor Networks  

E-Print Network [OSTI]

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

Paris-Sud XI, Université de

324

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

325

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

E-Print Network [OSTI]

. 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

New South Wales, University of

326

Robust and Probabilistic Power-aware Scheduling of Wireless Sensor Networks  

E-Print Network [OSTI]

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

Egerstedt, Magnus

327

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

E-Print Network [OSTI]

], 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

Chaudhuri, Soma

328

Secure Localization of Nodes in Wireless Sensor Networks with Limited Number of Truth Tellers  

E-Print Network [OSTI]

a wireless medium. The energy of each node is limited to the capacity of its battery. The consumption of energy for both communication and information processing must be mini- mized. Sensor networks use multi of sensors, also trusted by the other nodes -- often referred in literature as auditors or v

Barbeau, Michel

329

Dynamic Rate and Power Allocation in Wireless Ad Hoc Networks with Elastic and Inelastic Traffic  

Science Journals Connector (OSTI)

In this paper, we focus on the problem of dynamic rate and power allocation in wireless ad hoc networks with slow-fading channels, where a mixture of elastic and inelastic traffic is supported. A stochastic optimization problem incorporating the quality ... Keywords: Dynamic resource allocation, Elastic flows, Inelastic flows, Particle swarm optimization (PSO), QoS requirements, Stochastic duality theory

Fei Wang; Xiaofeng Liao; Songtao Guo; Hongyu Huang; Tingwen Huang

2013-05-01T23:59:59.000Z

330

EAR: An Energy and Activity-Aware Routing Protocol for Wireless Sensor Networks in Smart Environments  

Science Journals Connector (OSTI)

......etc.). System Model: The energy cost of a sleep state is much lower...Multihop Wireless Networks With Renewable Energy Sources. IEEE/ACM Trans. Netw...A.4) Hence 1 and 2 are the energy costs due to message- overhearing......

Debraj De; Wen-Zhan Song; Shaojie Tang; Diane Cook

2012-12-01T23:59:59.000Z

331

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

E-Print Network [OSTI]

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

Starobinski, David

332

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

E-Print Network [OSTI]

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

Nelakuditi, Srihari

333

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

E-Print Network [OSTI]

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

Uysal-Biyikoglu, Elif

334

Wireless Networked Lighting Systems for Optimizing Energy Savings and User Satisfaction  

E-Print Network [OSTI]

Wireless Networked Lighting Systems for Optimizing Energy Savings and User Satisfaction Yao for modern lighting systems ­ energy efficiency and user satisfaction. The intelligent lighting optimization algorithm formulates lighting control as a linear programming problem to minimize energy usage and meet

Agogino, Alice M.

335

Multi-hop wireless charging optimization in Low-Power Networks  

E-Print Network [OSTI]

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

Boyer, Edmond

336

Development of a Wireless Sensor Network for Monitoring a Bioreactor Landfill Asis Nasipuri,1  

E-Print Network [OSTI]

1 Development of a Wireless Sensor Network for Monitoring a Bioreactor Landfill Asis Nasipuri,1 treatment and disposal costs of leachate, and increasing landfill capacity. Such aerobic decomposition engineered containment structures i.e. landfilling. The goal of a conventional landfill (typically referred

Nasipuri, Asis

337

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

E-Print Network [OSTI]

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

Stojmenovic, Ivan

338

ENERGY-EFFICIENT GEOGRAPHIC ROUTING IN ENVIRONMENTALLY POWERED WIRELESS SENSOR NETWORKS  

E-Print Network [OSTI]

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

Hou, Y. Thomas

339

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

340

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 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

Brown, Timothy X.

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Biologically-Inspired Adaptive Data Aggregation for Multi-Modal Wireless Sensor Networks  

E-Print Network [OSTI]

that BiSNET allows sensor nodes to autonomously adapt their duty cycle intervals for power efficiency. Introduction Multi-modal wireless sensor networks (MWSNs) face several challenges1 . The first challenge is autonomy. Since sensor nodes can be deployed in an unattended area (e.g., forest and ocean) or physically

Suzuki, Jun

342

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:...

343

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

E-Print Network [OSTI]

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

Kung, H. T.

344

Design Considerations for an On-Demand Minimum Energy Routing Protocol for a Wireless Ad Hoc Network  

E-Print Network [OSTI]

at Boulder Boulder, CO-80309 Abstract--A minimum energy routing protocol reduces the energy con- sumption the energy consumption of a wireless ad hoc network. Past research has focused on energy savings schemes1 Design Considerations for an On-Demand Minimum Energy Routing Protocol for a Wireless Ad Hoc

Brown, Timothy X.

345

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

E-Print Network [OSTI]

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

Tsouri, Gill

346

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

347

What Is the Use of Collision Detection (in Wireless Networks)?  

E-Print Network [OSTI]

model, however, often is too pessimistic. Most wireless devices can distinguish at least four states: (i communication, or it is silently listening, usually allowing it to differentiate between the other three states. In the last case the listening node can sense that there are transmissions 1 This is the technial report

348

Minimum Power Configuration for Wireless Communication in Sensor Networks  

E-Print Network [OSTI]

conserve more energy than exist- ing minimum power routing and topology control protocols. Furthermore configuration, ad hoc net- works, energy efficiency, wireless communications Part of this article was published aggressively conserve energy in order to operate for extensive periods without wired power sources. Since

349

Adaptive Sampling for Wireless Sensor Networks Rebecca M. Willett  

E-Print Network [OSTI]

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

Willett, Rebecca

350

Ferry-Based Linear Wireless Sensor Networks Imad Jawhar1  

E-Print Network [OSTI]

. INTRODUCTION Constant and important advancements in wireless sensor technology have led to the design of small devices can form a "thin" or "thick" line, consisting of a cross section containing one or more This work for LSNs. Such applications include: (1) Oil, gas, and water pipeline monitoring; (2) Railroad

Wu, Jie

351

Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking  

E-Print Network [OSTI]

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

Boyer, Edmond

352

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

E-Print Network [OSTI]

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

Zhao, Qing

353

Integration of Groundwater Transport Models with Wireless Sensor Networks  

E-Print Network [OSTI]

~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

Han, Qi "Chee"

354

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

E-Print Network [OSTI]

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

Haddadi, Hamed

355

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

E-Print Network [OSTI]

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.

Vangala, Harish; Sharma, Prof Vinod

2011-01-01T23:59:59.000Z

356

Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking  

E-Print Network [OSTI]

]; and hybrid networks, where infrastructure nodes coexist with multihopping [5]. In all these networks-theoretic results have shown that high- rate transmission over networks without any infrastructure (ad hoc networks of an infrastructure made of base stations (BSs or access points) connected by a high-capacity backbone. This class

Kramer, Gerhard

357

COMMERCIALIZING  

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

COMMERCIALIZING TECHNOLOGIES & CREATING JOBS Our location in the SS&TP plays a vital role in our ability to leverage the deep domain expertise of Sandia. Our proximity to the Labs...

358

Commercial  

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

SRC 7439-R3 Energy Edge Impact Evaluation Early Overview, Final Report. R. Diamond, J. Harris, M. Piette, O. deBuen, and B. Nordman. Lawrence Berkeley Lab. (1290). Commercial...

359

Performance of wireless sensor networks under random node failures  

SciTech Connect (OSTI)

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.

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

2011-01-28T23:59:59.000Z

360

Data Analysis and Query Processing in Wireless Sensor Networks  

E-Print Network [OSTI]

sensor network based home-automation. In EUC Work- shops,158, 92, 119], home and building automation [6, 71], urban

Chatzimilioudis, Georgios

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

.Zonal Rumor Routing for Wireless Sensor Networks Tarun Banka  

E-Print Network [OSTI]

P. Jayasumana Department of Electrical and Computer Engineering anura@engr.colostate.edu Colorado algorithms have been developed for sensor networks. Routing algorithms that flood the network with events in network broadcast, is more efficient than the flooding scheme in terms of traffic generated for query

Jayasumana, Anura P.

362

Distributed Bayesian Algorithms for Fault-Tolerant Event Region Detection in Wireless Sensor Networks  

E-Print Network [OSTI]

We propose a distributed solution for a canonical task in wireless sensor networks---the binary detection of interesting environmental events. We explicitly take into account the possibility of sensor measurement faults and develop a distributed Bayesian algorithm for detecting and correcting such faults. Theoretical analysis and simulation results show that 85-95 percent of faults can be corrected using this algorithm, even when as many as 10 percent of the nodes are faulty.

Bhaskar Krishnamachari; Sitharama Iyengar

2004-01-01T23:59:59.000Z

363

1 Comparison of Data-driven Link Estimation Methods in Low-power Wireless Networks  

E-Print Network [OSTI]

Abstract—Link estimation is a basic element of routing in low-power wireless networks, and data-driven link estimation using unicast MAC feedback has been shown to outperform broadcast-beacon based link estimation. Nonetheless, little is known about how different data-driven link estimation methods affect routing behaviors. To address this issue, we classify existing data-driven link estimation methods into two broad categories: L-NT that uses aggregate information about unicast and L-ETX that uses information about the individual unicast-physical transmissions. Through mathematical analysis and experimental measurement in a testbed of 98 XSM motes (an enhanced version of MICA2 motes), we examine the accuracy and stability of L-NT and L-ETX in estimating the ETX routing metric. We also experimentally study the routing performance of L-NT and L-ETX. We discover that these two representative, seemingly similar methods of data-driven link estimation differ significantly in routing behaviors: L-ETX is much more accurate and stable than L-NT in estimating the ETX metric, and, accordingly, L-ETX achieves a higher data delivery reliability and energy efficiency than L-NT (for instance, by 25.18 % and a factor of 3.75 respectively in our testbed). These findings provide new insight into the subtle design issues in data-driven link estimation that significantly impact the reliability, stability, and efficiency of wireless routing, thus shedding light on how to design link estimation methods for mission-critical wireless networks which pose stringent requirements on reliability and predictability. Index Terms—Low-power wireless networks, sensor networks, link estimation and routing, data-driven, beacon-based, distancevector routing, geographic routing I.

Hongwei Zhang; Lifeng Sang; Student Member; Anish Arora

364

Models and Solution Approaches for Efficient Design and Operation of Wireless Sensor Networks  

E-Print Network [OSTI]

of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Halit ?Uster Committee Members, Abhijit Deshmukh Eylem Tekin Ibrahim Karaman Head of Department, Brett Peters..., Tianjin,China Chair of Advisory Committee: Dr. Halit ?Uster Recent advancements in sensory devices are presenting various opportunities for widespread applications of wireless sensor networks (WSNs). The most distinguishing characteristic of a WSN...

Lin, Hui 1981-

2010-11-11T23:59:59.000Z

365

Opportunities to Save Energy and Improve Comfort by Using Wireless Sensor Networks in Buildings  

E-Print Network [OSTI]

OPPORTUNITIES TO SAVE ENERGY AND IMPROVE COMFORT BY USING WIRELESS SENSOR NETWORKS IN BUILDINGS Cliff Federspiel Research Specialist Edward Arens Director Danni Wang Graduate Student Center for Environmental Design Research.... They showed that by increasing the number of sensors they could optimize comfort or energy consumption individually, or improve both comfort and energy saving whenever some rooms require heating and others simultaneously require cooling. Wang et al (2002...

Wang, D.; Arens, E.; Federspiel, C.

2003-01-01T23:59:59.000Z

366

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

E-Print Network [OSTI]

[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

Li, Li Erran

367

On effectiveness of cooperation enforcement mechanisms in wireless ad hoc networks  

Science Journals Connector (OSTI)

Wireless ad hoc networks are resource constrained, infrastructureless peer to peer networks where nodes are responsible for performing routing activity for other nodes to establish end to end communication. Due to limited resources (energy and bandwidth), in certain networks, nodes may behave selfishly and not forward packets for other nodes. Many cooperation enforcement mechanisms are proposed in literature to enforce packet forwarding on resource constrained nodes, and are shown to perform better than the defenseless dynamic source routing (DSR) protocol under their own set of assumptions. However, they do not consider the effect on network lifetime and energy consumption. Here we analyse routing overhead, end to end packet delivery ratio (PDR), and per packet energy cost of DSR and a representative set of cooperation enforcement mechanisms using various network scenario to show that in absence of infrastructure support cooperation enforcement mechanisms in their present form are not effective in dealing with node selfishness.

Manish Chaturvedi; Sanjay Srivastava

2012-01-01T23:59:59.000Z

368

Routing algorithms for large scale wireless sensor networks  

E-Print Network [OSTI]

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...

Nittala Venkata, Lakshmana Prasanth

2005-02-17T23:59:59.000Z

369

Distributed Symmetric Function Computation in Noisy Wireless Sensor Networks  

E-Print Network [OSTI]

is to cooperatively provide information to this fusion center so it can compute some function of the sensor. The network has a special node called the fusion center whose goal is to compute a symmetric function of these measurements. The problem studied is to minimize the total transmission energy used by the network when

Srikant, Rayadurgam

370

Delay Efficient Sleep Scheduling in Wireless Sensor Networks  

E-Print Network [OSTI]

the primary goal in these networks. Previous works have identified idle listening of the radio as a major source of energy wastage (e.g. [1], [3], [4], [5], [6], [7], [8]). Measurements on existing sensor device radios show that idle listening consumes nearly the same power as receiving. In sensor network

Krishnamachari, Bhaskar

371

Secure Aggregation for Wireless Networks Lingxuan Hu David Evans  

E-Print Network [OSTI]

. To conserve power, intermediate network nodes should aggregate results from individual sensors. However nodes within the network and use them to transmit false messages. Further, an adversary may compromise of the messages themselves to be unnecessary and focus only on the integrity of the results transmitted

Evans, David

372

Deployment Alternatives for Performance Debugging in Wireless Sensor Networks  

E-Print Network [OSTI]

of accuracy in the available representation of network status. As well as the energy saving associated with , both bandwidth and energy are at a premium. The common performance monitoring approach of frequently in the network. Carrying out this analysis on the node's themselves rather than at the sink allows us to reduce

Sreenan, Cormac J.

373

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

E-Print Network [OSTI]

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.

Tasoluk, Berker; 10.5121/ijwmn.2011.3101

2011-01-01T23:59:59.000Z

374

A modeling framework for supporting and evaluating performance of multi-hop paths in mobile ad-hoc wireless networks  

Science Journals Connector (OSTI)

Performance evaluation is a crucially important part of designing any mobile ad-hoc wireless networks. For a more comprehensive evaluation, mathematical analysis is essential, along with simulation. In this paper, we present a detailed analytical model ... Keywords: Mobile ad-hoc networks, Multi-hop paths, Node mobility model, Performance analysis

Le The Dung; Beongku An

2012-09-01T23:59:59.000Z

375

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

E-Print Network [OSTI]

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

Nemat-Nasser, Sia

376

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

E-Print Network [OSTI]

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

Elkashlan, Maged

377

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

E-Print Network [OSTI]

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

Krishnamachari, Bhaskar

378

PARAMETERIZED NEIGHBORHOODBASED FLOODING FOR AD HOC WIRELESS NETWORKS Vijay Dheap, Mohammad Ahmad Munawar, Sagar Naik, Paul A.S. Ward  

E-Print Network [OSTI]

PARAMETERIZED NEIGHBORHOOD­BASED FLOODING FOR AD HOC WIRELESS NETWORKS Vijay Dheap, Mohammad Ahmad Flooding is a simple routing technique that can be used to transmit data from one node to every other node in a network. The focus of this paper is to investigate im­ provements to flooding techniques used in ad hoc

Ward, Paul A.S.

379

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

E-Print Network [OSTI]

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

Havinga, Paul J.M.

380

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]

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

Mohseni, Kamran

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Spadacini et al. EURASIP Journal on Wireless Communications and Networking 2014, 2014:6 http://jwcn.eurasipjournals.com/content/2014/1/6  

E-Print Network [OSTI]

://jwcn.eurasipjournals.com/content/2014/1/6 RESEARCH Open Access Wireless home automation networks for indoor surveillance: technologies for critical surveillance and home automation introduces a number of opportunities as well as technological gives an overview of requirements, characteristics, and challenges of wireless home automation networks

Savazzi, Stefano

382

Domain area planning utility (DAPU) for planning wireless battlefield networks  

Science Journals Connector (OSTI)

We describe the key design concepts of Domain Area Planning Utility (DAPU) developed by the PILSNER program to perform high-speed automated planning of Future Battlefield Networks (FBNs). DAPU processes multiple inputs from Resource Planning such as ...

Mariusz A. Fecko; John Unger; Sunil Samtani; Douglas Davey; Andrzej Cichocki; Bill Biagini; Paul Rego; Rick Stewart; Aristides Staikos

2009-10-01T23:59:59.000Z

383

Throughput Analysis of Wireless Ad-Hoc Cognitive Radio Networks  

E-Print Network [OSTI]

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...

Banaei, Armin

2014-04-25T23:59:59.000Z

384

A wireless sensor network deployment to detect the degeneration of cement used in construction  

Science Journals Connector (OSTI)

During last few years, the high environmental humidity and salinity in areas close to the sea have caused degeneration of the construction materials. Due to this, several building have collapsed. Several studies demonstrated that it is very difficult to predict these cases. For this reason, we propose a non-invasive technique which takes into account the appropriate placement of the wireless sensors to detect the degeneration of the cement used in construction. Our proposal is based on a wireless sensor network (WSN) which is able to sense the temperature, humidity, micro-vibrations and structural movements. We show the sensor deployment and its appropriate location to take the most suitable measurements and ensure the reliability of the data. We show the energy consumption of each node and the web interface used to show the data. From the structural movements, our WSN can know whether a building is in danger of collapse or not.

S. Sendra; A.T. Lloret; J. Lloret; J.J.P.C. Rodrigues

2014-01-01T23:59:59.000Z

385

Modelling energy efficiency of OR protocols in wireless networks  

Science Journals Connector (OSTI)

Although opportunistic routing (OR) for ad hoc networks have been shown to improve network throughput, energy audit of these protocols have not been done. In this paper, an analytical model to characterise the energy consumption of OR protocols is presented. Total energy consumption is computed taking into account the energy consumed in exchanging control packets, data packet transmission including retransmission and reception. The model considers packet retransmissions that can occur due to network conditions and protocol inaccuracies. The proposed analytical model is used to compute the energy consumption of some well known OR protocols available in literature. The result of the mathematical model is compared with simulation results. The theoretical and experimental results are found to be in conformance.

Arka Prokash Mazumdar; Anandghan Waghmare; Ashok Singh Sairam

2014-01-01T23:59:59.000Z

386

An energy-efficient adaptive clustering algorithm with load balancing for wireless sensor network  

Science Journals Connector (OSTI)

Maximisation of network lifetime is the issue of prime importance in Wireless Sensor Network (WSN). An energy-efficient clustering algorithm with load balancing can achieve this challenging goal. We propose Density-based Dynamic Clustering (DDC) algorithm for clustering and cluster head election mechanism with the use of independence set. Furthermore, a distributed algorithm (DISD - Distributed Independence Set Discovery) is designed for cluster head election in O(1) complexity per sensor node. In this, we dynamically find an optimal sensor cover to dominate maximum sensors within a cluster, therefore forming an InDependence Set (IDS). Only the members of IDS are allowed to participate in the cluster head selection (rotation), thereby establishing load balancing and energy management. Our model is designed for dual modes: low- and high-traffic session. According to the flow of packets, the sleep management technique is modified. Network simulator is used for the simulation of our proposed algorithms.

Buddha Singh; D.K. Lobiyal

2012-01-01T23:59:59.000Z

387

Saving Energy in Wireless Local Area Sensor Networks  

Science Journals Connector (OSTI)

......can see in this study, each device has been man- ufactured for...Lucent WaveLAN IEEE 802.11 device. Their paper shows a series...energy consumption of this device operating in an ad hoc networking...originated the packet. A node listening to these packets makes a corresponding......

Jaime Lloret; Sandra Sendra; Hugo Coll; Miguel Garcia

2010-12-01T23:59:59.000Z

388

Fault Tolerance in Data Gathering Wireless Sensor Networks  

Science Journals Connector (OSTI)

......to our analysis of LEACH code [26] implemented in the network simulator 2 (ns2) [28]) and do not wait...generated by the tool in LEACH code in ns2 [28] in a square area...default setting in LEACH code in [28]: NCH = 5, the......

Guangyan Huang; Yanchun Zhang; Jing He; Jinli Cao

2011-06-01T23:59:59.000Z

389

Supporting First Person Shooter Games in Wireless Local Area Networks  

E-Print Network [OSTI]

. The IEEE 802.11e standard introduces Quality of Service (QoS) mechanisms including Enhanced Distributed dimensional world with other game players with the objective of shooting and destroying objects or other quite short, measurable in minutes. Increased availability of high-speed residential broadband networks

Murphy, John

390

Optimized Stateless Broadcasting in Wireless Multi-hop Networks  

E-Print Network [OSTI]

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

Braun, Torsten

391

DEVELOPMENT OFA RELIABLE WIRELESS GNSS SENSOR NETWORK Fabio Casciati1  

E-Print Network [OSTI]

, 96100 Siracusa, Italy 3 Institute of Micro/Nano Devices and Solar Cell, College of Physics To localize, track and trace critical assets and first responders for remote emergency management are primary communication network and the power grid will be cut off. Therefore, a reliable asset tracking system should

Boyer, Edmond

392

Achieving Congestion Diversity in Wireless Ad-hoc Networks  

E-Print Network [OSTI]

consisting of 12 802.11g nodes. This small test-bed enables an imperical comparison of CDP's performance is particularly acute in multi-hop networks, where nodes must relay each others packets. We present a congestion- varying distance metric that approximates the queue draining times along each path. Our proposed

Snoeren, Alex

393

Ontological Configuration Management for Wireless Mesh Routers  

Science Journals Connector (OSTI)

Wireless mesh networks (WMNs) are a category of wireless networks that are self-organized, robust and which offer more flexible client coverage with less equipment requirements than wired networks. In WMNs, mesh routers constitute the network's "backbone". ...

Iván Díaz; Cristian Popi; Olivier Festor; Juan Tourińo; Ramón Doallo

2009-10-01T23:59:59.000Z

394

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

E-Print Network [OSTI]

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...

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

2008-01-01T23:59:59.000Z

395

Mobile Robot Coordination and navigation with directional antennas in positionless Wireless Sensor Networks  

Science Journals Connector (OSTI)

Three schemes are proposed to coordinate and navigate mobile robots with directional antennas in a positionless wireless sensor network for the purpose of emergency rescue. The k-farthest-node forwarding scheme is for Waiting-for-Rescue (WFR) nodes to broadcast packets to ask mobile robots to come to help. The Mobile Robot Coordination (MRC) is to coordinate multiple mobile robots so that each WFR node is associated one nearby mobile node which is navigated by the Tree Assisted Navigation (TAN) scheme to fast reach the WFR node. The schemes' effectiveness is verified by the ns-2 simulator.

Jehn-Ruey Jiang; Yung-Liang Lai; Fu-Cheng Deng

2011-01-01T23:59:59.000Z

396

An efficient secure data dissemination scheme for grid structure Wireless Sensor Networks  

Science Journals Connector (OSTI)

Wireless Sensor Networks (WSNs) have been widely applied to sensing data from different environments. Owing to the resource limitations of WSNs, the data may be tampered easily during transmission. It may happen that data reach incorrect destinations or received incorrect data. It is an important issue for WSNs that base stations must receive correct data and ensure the data confidentiality. This paper proposes an efficient key management scheme and employs symmetric cryptography to secure the messages. In addition, we propose a secure routing protocol to provide a robust route. The proposed scheme further guarantees the destination should receive the data correctly.

Yu-Kai Hsiao; Ren-Junn Hwang

2010-01-01T23:59:59.000Z

397

Network-Aware Content Shaping for Energy Efficient Wireless Web Access  

Science Journals Connector (OSTI)

Wireless web access is projected to be a primary driving application for the success of next generation wireless data services. However, enabling efficient wireless web access has several bottlenecks, including v...

Debashis Panigrahi; Sujit Dey…

2002-01-01T23:59:59.000Z

398

Effective algorithms and protocols for wireless networking: a topological approach  

E-Print Network [OSTI]

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...

Zhang, Fenghui

2008-10-10T23:59:59.000Z

399

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

E-Print Network [OSTI]

??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)

Song, Chengqi

2010-01-01T23:59:59.000Z

400

On performance of multi hop CDMA wireless sensor networks with correlated interferers  

Science Journals Connector (OSTI)

Multi-hop communication in wireless sensor networks helps in attaining broader coverage and distributes the use of power throughout the hops. This paper evaluates the end-to-end performance of a CDMA-based static multi-hop wireless sensor network (WSN) with layered architecture in shadowed environment. End-to-end probability of outage, bit error rate (BER), average energy consumption, and the associated delay for successful delivery of a packet from a source to a sink, separated by a fixed distance, are evaluated for different number of hops. An interference model for multi-hop is presented considering correlation amongst shadow faded interferers. Two different information delivery mechanisms are investigated using regenerative relays with and without error correction capability. Energy requirement, and delay for successful delivery of a data packet from a source to sink is evaluated for each packet transmission scheme considering a suitable energy model and compared under several conditions of node density, packet length, and number of hops between source and sink. Optimal hop count is estimated on the basis of energy requirement and delay for successful delivery of data from a source to sink. Analytical results are supported by simulation.

Uma Datta; Pradyumna Kumar Sahu; Sumit Kundu

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

CWSC: Connected k-coverage working sets construction algorithm in wireless sensor networks  

Science Journals Connector (OSTI)

Abstract One of the most important issues for wireless sensor networks is to get a long network lifetime without affecting either communication connectivity or sensing coverage. Many sensors that are deployed randomly in a dense sensor network in a redundant way waste a lot of energy. One effective way to save energy is to let only a subset of sensors work at any given time. In this paper, we mainly consider such a problem. Selecting the minimum number of connected sensor nodes that can provide k-coverage (k ? 1), i.e., selecting a subset S of working sensors, such that almost every point in the sensing region can be covered by at least k sensors and the sensors in S can form a connected communication subgraph. We propose a connected k-coverage working sets construction algorithm (CWSC) based on Euclidean distance to k-cover the sensing region while minimizing the number of working sensors. CWSC can produce different coverage degrees according to different applications, which can enhance the flexibility of the sensor network. Simulation results show that the proposed algorithm, which can conserve energy and prolong the lifetime of the sensor network, is better than the previous algorithms.

Jiguo Yu; Xiu Deng; Dongxiao Yu; Guanghui Wang; Xin Gu

2013-01-01T23:59:59.000Z

402

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

E-Print Network [OSTI]

. 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

Zhou, Shengli

403

E-MiLi: Energy-Minimizing Idle Listening in Wireless Networks Xinyu Zhang and Kang G. Shin  

E-Print Network [OSTI]

}@eecs.umich.edu ABSTRACT WiFi interface is known to be a primary energy consumer in mo- bile devices, and idle listeningE-MiLi: Energy-Minimizing Idle Listening in Wireless Networks Xinyu Zhang and Kang G. Shin with PSM enabled. To remedy this problem, we propose E-MiLi (Energy-Minimizing idle Listening) that re

Shihada, Basem

404

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

405

Solving coverage problems in wireless sensor networks using cover sets  

Science Journals Connector (OSTI)

To achieve power efficient monitoring of targets by sensor networks, various coverage algorithms have been proposed. These algorithms divide the sensor nodes into cover sets, where each cover set is capable of monitoring all targets. Generating the maximum number of cover sets has been proven to be an NP-complete problem and, thus, algorithms producing sub-optimal solutions have been proposed. In this paper we present a novel and efficient coverage algorithm, that can produce both disjoint cover sets, i.e. cover sets with no common sensor nodes, as well as non-disjoint cover sets. While searching for the best sensor to include in a cover set, our algorithm uses a cost function that takes into account the monitoring capabilities of a sensor, its association with poorly monitored targets, but also the sensor’s remaining battery life. Through simulations, we show that the proposed algorithm outperforms similar heuristic algorithms found in the literature, producing collections of cover sets of optimal (or near-optimal) size. The increased availability offered by these cover sets along with the short execution time of the proposed algorithm make it desirable for a wide range of node deployment environments.

Dimitrios Zorbas; Dimitris Glynos; Panayiotis Kotzanikolaou; Christos Douligeris

2010-01-01T23:59:59.000Z

406

Predictive Modeling of Large-Scale Commercial Water Desalination Plants: Data-Based Neural Network and Model-Based Process  

E-Print Network [OSTI]

Predictive Modeling of Large-Scale Commercial Water Desalination Plants: Data-Based Neural Network for developing predictive models for large-scale commercial water desalination plants by (1) a data (MSF) and reverse osmosis (RO) desalination plants in the world. Our resulting neural network

Liu, Y. A.

407

Commentary to “From new-product development to commercialization through networks  

Science Journals Connector (OSTI)

This commentary essay explores some broader implications of the article by Aarikka-Stenroos and Sandberg (in this issue) concerning two issues: the principal character of innovation processes and the delineation of networks. The article provides an interesting discussion on how firms can overcome the obstacles of successful commercialization of innovations by the utilization of various types of networks involving developers, producers and users alike. This commentary recognizes two problems in this setting: An overly linear view on innovation processes and NPD, and an overly simplistic view on the delineation of networks.

Frans Prenkert

2012-01-01T23:59:59.000Z

408

Pervasive healthcare and wireless health monitoring  

Science Journals Connector (OSTI)

With an increasingly mobile society and the worldwide deployment of mobile and wireless networks, the wireless infrastructure can support many current and emerging healthcare applications. This could fulfill the vision of "Pervasive Healthcare" or healthcare ... Keywords: ad hoc wireless networks, healthcare applications, location management, mobile and wireless networks, pervasive

Upkar Varshney

2007-03-01T23:59:59.000Z

409

Multiuser Wireless Communication Systems Ashutosh Sabharwal and Behnaam Aazhang  

E-Print Network [OSTI]

of Electrical and Computer Engineering Rice University Houston TX 77005 Abstract Wireless cellular systems haveMultiuser Wireless Communication Systems Ashutosh Sabharwal and Behnaam Aazhang Department high speed wireless networks. Keywords : Wireless communications, channel estimation, multiuser

Sabharwal, Ashutosh

410

Comparing wireless flooding protocols using trace-based simulations  

Science Journals Connector (OSTI)

Most wireless multi-hop networks, such as ad hoc...networks and wireless sensor networks, need network-wide broadcasting, which is best done with a flooding protocol. In this article, we use ... test-bed network ...

Martin Jacobsson; Christian Rohner

2013-06-01T23:59:59.000Z

411

A Comparative experimental study of media access protocols for wireless radio networks  

SciTech Connect (OSTI)

We conduct a comparative experimental analysis of three well known media access protocols: 802.11, CSMA, and MACA for wireless radio networks. Both fixed and ad-hoc networks are considered. The experimental analysis was carried out using GloMoSim: a tool for simulating wireless networks. The main focus of experiments was to study how (i) the size of the network, (ii) number of open connections, (iii) the spatial location of individual connections, (iv) speed with which individual nodes move and (v) protocols higher up in the protocol stack (e,g. routing layer) affect the performance of the media access sublayer protocols. The performance of the protocols was measured w.r.t. three important parameters: (1) number of received packets, (2) average latency of each packet, and (3) throughput. The following general qualitative conclusions were obtained; some of the conclusions reinforce the earlier claims by other researchers. (1) Although 802.11 performs better than the other two protocols with respect to fairness of transmission, packets dropped, and latency, its performance is found to (i) show a lot of variance with changing input parameters and (ii) the overall performance still leaves a lot of room for improvement. (2) CSMA does not perform too well under the fairness criteria, however, was the best in terms of the latency criteria. (3) MACA also shows fairness problems and has poor performance at high packet injection rates. (4) Protocols in the higher level of the protocol stack affect the MAC layer performance. The main general implications of our work is two folds: (1) No single protocol dominated the other protocols across various measures of efficiency. This motivates the design of a new class of parameterized protocols that adapt to changes in the network connectivity and loads. We refer to these class of protocols as parameterized dynamically adaptive efficient protocols and as a first step suggest key design requirements for such a class of protocols. (2) Performance analysis of protocols at a given level in the protocol stack need to be studied not locally in isolation but as a part of the complete protocol stack. The results suggest that in order to improve the performance of a communication network, it will be important to study the entire protocol stuck as a single algorithmic construct; optimizing individual layers in the 7 layer OSI stack will not yield performance improvements beyond a point.

Barrett, C. L. (Christopher L.); Drozda, M. (Martin); Marathe, M. V. (Madhav V.)

2001-05-24T23:59:59.000Z

412

On the Feasibility of Early Detection of Environmental Events through Wireless Sensor Networks and the Use of 802.15.4 and GPRS  

Science Journals Connector (OSTI)

In this paper, a general model of an Early Detection of Environmental Events System is presented. It follows established technologies and it is based on wireless sensor network nodes connected to a central com...

Jorge Santos; Rodrigo M. Santos; Javier D. Orozco

2009-01-01T23:59:59.000Z

413

Body Area Networks for Ambulant Patient Monitoring Over Next Generation Public Wireless Networks  

E-Print Network [OSTI]

on a Body Area Network (BAN) and an m-health service platform utilizing UMTS and GPRS networks) for healthcare and an m-health service platform. The BAN incorporates a set of body-worn devices and handles

Widya, Ing

414

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

E-Print Network [OSTI]

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...

Won, Myounggyu

2013-07-17T23:59:59.000Z

415

SENVM: Server Environment Monitoring and Controlling System for a Small Data Center Using Wireless Sensor Network  

E-Print Network [OSTI]

In recent years, efficient energy utilization becomes an essential requirement for data centers, especially in data centers of world-leading companies, where "Green Data Center" defines a new term for an environment-concerned data center. Solutions to change existing a data center to the green one may vary. In the big company, high-cost approaches including re-planning server rooms, changing air-conditioners, buying low-powered servers, and equipping sophisticating environmental control equipments are possible, but not for small to medium enterprises (SMEs) and academic sectors which have limited budget. In this paper, we propose a novel system, SENVM, used to monitor and control air temperature in a server room to be in appropriate condition, not too cold, where very unnecessary cooling leads to unnecessary extra electricity expenses, and also inefficient in energy utilization. With implementing on an emerging technology, Wireless Sensor Network (WSN), Green Data Center is feasible to every small data center...

Choochaisri, Supasate; Jenjaturong, Saran; Intanagonwiwat, Chalermek; Ratanamahatana, Chotirat Ann

2011-01-01T23:59:59.000Z

416

Scatter – secure code authentication for efficient reprogramming in wireless sensor networks  

Science Journals Connector (OSTI)

Currently proposed solutions to secure code dissemination in wireless sensor networks (WSNs) involve the use of expensive public-key digital signatures. In this work, we present Scatter, a secure code dissemination protocol that enables sensor nodes to authenticate the program image efficiently. To achieve this, we use a scheme that offers source authentication in the group setting like a public-key signature scheme, but with signature and verification times much closer to those of a MAC (message authentication code). In this way, Scatter avoids the use of elliptic curve cryptography and manages to surpass all previous attempts for secure code dissemination in terms of energy consumption, memory and time efficiency. Besides the design and theoretical analysis of the protocol, we also report the experimental evaluation of Scatter in two different hardware platforms, Mica2 and MicaZ, which proves its efficiency in practice.

Ioannis Krontiris; Tassos Dimitriou

2011-01-01T23:59:59.000Z

417

Effect of different grid shapes in wireless mesh network-genetic algorithm system  

Science Journals Connector (OSTI)

Grid computing have emerged as scientific and technical work, where geographically distributed computers, are used to create virtual supercomputers of vast amount of computing capacity able to solve complex problems in less time than before. Thus, within the last years we have witnessed how grid computing has helped to achieve breakthroughs in meteorology, physics and other computing-intensive fields. Wireless Mesh Networks (WMNs) are particularly suited for providing the communications required for a robust, self-healing grid architecture. The good performance and operability of WMNs depend on placement of mesh routers nodes in the geographical deployment area. In this paper, we consider the grid topology and evaluate the performance of WMN-GA system for node placement problem in WMNs. We consider different distributions of mesh clients and different grid shapes. The simulation results show the effect of grid shapes in the performance of WMN-GA. The system performs better for normal distribution.

Tetsuya Oda; Shinji Sakamoto; Admir Barolli; Evjola Spaho; Leonard Barolli; Fatos Xhafa

2014-01-01T23:59:59.000Z

418

Smart power monitoring utility system using wireless sensor networks : a project report submitted in partial fulfilment of the requirements for the degree of Master of Engineering in Electronics and Electrical Engineering.  

E-Print Network [OSTI]

??The design and development of a Wireless Sensor Networks based Smart Grid for home utility system for power utility has been presented in this thesis.… (more)

Gill, Satinder Pal Singh

2013-01-01T23:59:59.000Z

419

CodeDrip: Data Dissemination Protocol with Network Coding for Wireless Sensor Networks  

E-Print Network [OSTI]

the network. CodeDrip utilizes Network Coding to improve energy efficiency, reliability, and speed and in indoor setting such as buildings and factories. Wire- less communication and energy efficiency are key loss. A dissemination protocol should not only be reliable and energy efficient, but also fast

Gnawali, Omprakash

420

Distributed Bayesian fault diagnosis of jump Markov systems in wireless sensor networks  

Science Journals Connector (OSTI)

A Bayesian distributed online change detection algorithm is proposed for monitoring a dynamical system by a wireless sensor network. The proposed solution relies on modelling the system dynamics by a jump Markov system with a finite set of states, including the abrupt change behaviour. For each discrete state, an observed system is assumed to evolve according to a state-space model. The collaborative strategy ensures the efficiency and the robustness of the data processing, while limiting the required communications bandwith. An efficient Rao-Blackwellised Collaborative Particle Filter (RB-CPF) is proposed to estimate the a posteriori probability of the discrete states of the observed systems. The Rao-Blackwellisation procedure combines a Sequential Monte-Carlo (SMC) filter with a bank of distributed Kalman filters. In order to prolong the sensor network lifetime, only few active (leader) nodes are selected according to a spatio-temporal selection protocol. This protocol is based on a trade-off between error propagation, communications constraints and information content complementarity of distributed data. Only sufficient statistics are communicated between leader nodes and their collaborators.

Hichem Snoussi; Cedric Richard

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

A cross-layer optimisation approach for multimedia over CDMA mobile wireless networks  

Science Journals Connector (OSTI)

We study a cross-layer optimisation approach for the transport of packetised digital video over future generation CDMA mobile wireless networks, taking into account both the interference-limited and bandwidth-limited characteristics associated with spread-spectrum CDMA systems. In particular, by considering the resource requirements as the aggregate of the products of source coding rates and the energy per information bit to noise ratio, we propose a joint source coding-power control (JSCPC) strategy combined with adaptive channel coding employing the class of rate-compatible punctured turbo (RCPT) codes to provide forward error correction (FEC) with unequal error protection (UEP). We show that this adaptive cross-layer approach can simultaneously maximise the quality of the delivered video while minimising the total resource consumption, thereby providing improved spectral efficiency and network utilisation. We demonstrate the efficacy of this approach using the ITU-T H.263+ video source coder although the approach is generally applicable to other source coding schemes as well.

Yee Sin Chan; James W. Modestino

2005-01-01T23:59:59.000Z

422

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

E-Print Network [OSTI]

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 ...

Montpetit, Marie-Jose

423

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

E-Print Network [OSTI]

?s Colchester facility is a 1960s-era, single-story building with 22,000 square feet. The HVAC systems are electric heating and cooling. There are electric heat coils in the air handlers, electric perimeter baseboard heat, and air conditioning... complaint is received. EXISTING MEDIUM-SIZE COMMERCIAL BUILDING MARKET Buildings in the United States account for approximately 40% of energy consumption and greenhouse gas emissions.1 There are more than 4.8 million commercial buildings...

LaFlamme, S.

2013-01-01T23:59:59.000Z

424

The Critical Grid Size and Transmission Radius for Local-Minimum-Free Grid Routing in Wireless Ad Hoc and Sensor Networks  

Science Journals Connector (OSTI)

......and let l denote the grid size and r the transmission...wireless sensor networks; grid routing; local minima...pre-established network infrastructure. The devices form a...Several two-level hybrid geographical routing...frequently. As to the grid routing, Ye et al......

Chih-Wei Yi; Peng-Jun Wan; Chao-Min Su; Chen-Wei Huang

2010-12-01T23:59:59.000Z

425

PARAMETERIZED NEIGHBORHOOD-BASED FLOODING FOR AD HOC WIRELESS NETWORKS Vijay Dheap, Mohammad Ahmad Munawar, Sagar Naik, Paul A.S. Ward  

E-Print Network [OSTI]

PARAMETERIZED NEIGHBORHOOD-BASED FLOODING FOR AD HOC WIRELESS NETWORKS Vijay Dheap, Mohammad Ahmad Flooding is a simple routing technique that can be used to transmit data from one node to every other node in a network. The focus of this paper is to investigate im- provements to flooding techniques used in ad hoc

Ward, Paul A.S.

426

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

427

Energy Consumption of Next-Generation Optical-Wireless Converged Networks  

Science Journals Connector (OSTI)

We compare three different plausible architectures for next-generation optical-wireless convergence in energy conservation viewpoint. Our analysis provides insight into QoS rich...

Ranaweera, Chathurika; Lim, Christina; Wong, Elaine; Nirmalathas, Ampalavanapillai; Jayasundara, Chamil L

428

An Ultra-Scalable Broadband Architecture for Municipal Hybrid Wireless Access Using Optical Grid Network  

Science Journals Connector (OSTI)

A novel broadband architecture suitable for municipal hybrid wireless access is proposed. This architecture, called GROW-Net, is ultra-scalable in bandwidth support and infrastructure...

Shaw, Wei-Tao; Wong, Shing-Wa; Yen, She-Hwa; Kazovsky, Leonid G

429

Building a wireless mesh networked real-time electricity metering system in an MIT dormitory .  

E-Print Network [OSTI]

??A competitive, closed-loop information feedback system of wireless electricity meters was designed, tested, and implemented in seven MIT dormitory rooms. The meters utilized Allegro Hall… (more)

Oehlerking, Austin L

2009-01-01T23:59:59.000Z

430

2012 SG Peer Review - Wide Area Wireless Distribution Grid Sensor & Faulted Circuit Indicator System for Underground Assets - Jason Wilson, On-Ramp Wireless  

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

Wide Area Wireless Distribution Grid Sensor Wide Area Wireless Distribution Grid Sensor for Underground Assets Jason Wilson On-Ramp Wireless June 7, 2012 December 2008 Wide Area Wireless Distribution Grid Sensor for Underground Assets Objective Life-cycle Funding Summary ($K) Prior to FY 12 FY12, authorized FY13, requested Out-year(s) $1,046 $580 $39 $0 Technical Scope Develop and demonstrate a wireless network solution for distribution automation, including fault circuit indicators and transformer monitoring, capable of secure and reliable communication with below ground and hard to reach utility assets at a TCO that is commercially viable for utilities to deploy at large scale. Enable utilities throughout the US to improve critical grid reliability metrics including SAIDI. * Conceptual design and trade studies including sensor system interfaces, augmenting FCI with

431

A novel MAC scheduler to minimize the energy consumption in a Wireless Sensor Network  

Science Journals Connector (OSTI)

Abstract The rising success of the Internet of Things has led the Wireless Sensor Networks to play an important role in many fields, ranging from military to civilian applications. However, since sensor nodes are battery powered, communication protocols and applications for these networks must be carefully designed in order to limit the power consumption. In this work, a new MAC protocol able to significantly reduce the power consumption and compatible with the IEEE 802.15.4 standard, is designed and validated. The defined protocol is based on an efficient setting of the node’s duty cycle as a function of the transmission times of the neighbor nodes. In a duty cycle period, each node wakes up once to transmit and N times to receive, where N is the number of neighbors, while it remains in sleep mode for the rest of the time. The defined protocol has been validated through both an analytical and a simulative approach. By using the first approach, the proposed solution is compared with another energy-efficient protocol, namely AS-MAC; then, the differences between the simulated scenario and the analytical one are analyzed. By using the second approach (through Omnet++ simulator), we carried out a performance comparison between our protocol and the current MAC protocol compliant with the ZigBee standard. All the results have shown the effectiveness of the proposed solution, which has proved to be flexible and efficient, since it is able to provide high energy savings at different date rate, without a negative impact on the packets delivery.

Luca Anchora; Antonio Capone; Vincenzo Mighali; Luigi Patrono; Francesco Simone

2014-01-01T23:59:59.000Z

432

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...

433

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

E-Print Network [OSTI]

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

Lui, John C.S.

434

Seamless Congestion Control over Wired and Wireless IEEE 802.11 Networks  

E-Print Network [OSTI]

accessing the Internet and enterprise intranets through wire- less links, and IEEE 802.11 wireless LANs 1471 particular characteristics of the underlying wireless technology was first proposed in [3 marking procedure takes into account the par- ticular characteristics and the resource sharing model

Siris, Vasilios A.

435

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

E-Print Network [OSTI]

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

Zhang, Yan

436

Reply Comments of Verizon and Verizon Wireless | Department of Energy  

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

Verizon and Verizon Wireless Verizon and Verizon Wireless Reply Comments of Verizon and Verizon Wireless As Verizon noted in its opening comments in response to the Department of Energy's Request for Information (RFI), effective communications networks and services are critical to the success of Smart Grid technology. Existing commercial broadband networks built and operated by experienced communications providers would best facilitate the implementation of Smart Grid technology, which requires the highly secure transmission and processing of vast amounts of information to and from consumers and electricity producers and distributors. As evidenced by comments submitted in this proceeding, established communications providers not only are capable of meeting the communications needs of the utility sector as Smart Grid technology is implemented -

437

Physical layer-aware wireless link layer protocols  

E-Print Network [OSTI]

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 ...

Vutukuru, Mythili

2010-01-01T23:59:59.000Z

438

3182 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 5, NO. 11, NOVEMBER 2006 Randomly Duty-cycled Wireless Sensor Networks  

E-Print Network [OSTI]

to the study of path availability in a low duty-cycled sensor network. Index Terms-- Energy conservation. The associate editor coordinating the review of this paper and approving it for publication was J. Hou.1109/TWC.2006.04861. sensor generates a message and forwards it to a gateway (or control center), either

Liu, Mingyan

439

Relay-Enabled Hybrid Wireless and Powerline Communication Access Network for Smart Power Grid  

Science Journals Connector (OSTI)

As the main approach to realize intelligent electric distribution, the power line communication (PLC) technology still faces the problem of topology complexity in this field. In this article, a Hybrid Wireless–PL...

Huifeng Bai; Mingwei Li; Dongshan Wang…

2014-01-01T23:59:59.000Z

440

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...

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

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

E-Print Network [OSTI]

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

Ning, Peng

442

CogWnet: A Resource Management Architecture for Cognitive Wireless Networks  

E-Print Network [OSTI]

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

Shihada, Basem

443

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

E-Print Network [OSTI]

.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

Bencsáth, Boldizsár

444

Stochastic Traffic Engineering for Live Audio/Video Delivering over Energy-Limited Wireless Access Networks  

Science Journals Connector (OSTI)

We study the Stochastic Traffic Engineering (STE) problem arising from the support ... demanding live (e.g., real time) audio/video applications over unreliable IP-over-wireless...stochastic optimization problem,...

Nicola Cordeschi; Tatiana Patriarca; Enzo Baccarelli

2011-01-01T23:59:59.000Z

445

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

446

A real-time routing protocol with mobility support and load distribution for mobile wireless sensor networks  

Science Journals Connector (OSTI)

Mobile wireless sensor network (MWSN) is a wireless ad hoc network that consists of a very large number of tiny sensor nodes communicating with each other in which sensor nodes are either equipped with motors for active mobility or attached to mobile objects for passive mobility. A real-time routing protocol for MWSN is an exciting area of research because messages are delivered according to their end-to-end deadlines. MWSN demands real-time routing in many applications including disasters fighting, forest fire detection and volcanic eruption detection. This paper proposes a novel idea of real-time that provides mobility and load distribution (RTMLD) for MWSN. RTMLD utilised corona mechanism and optimal forwarding metrics to forward the data packet in MWSN. It computes the optimal forwarding node based on RSSI, remaining battery level of sensor nodes and packet delay over one-hop. RTMLD ensures high packet delivery ratio and experiences minimum end-to-end delay in WSN and MWSN compared with baseline routing protocol. RTMLD has been successfully verified through test bed and simulation experiment.

Adel A. Ahmed; Norsheila Fisal

2014-01-01T23:59:59.000Z

447

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

E-Print Network [OSTI]

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

Prabhakar, Balaji

448

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]

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

Jafar, Syed A.

449

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]

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

Zhao, Qing

450

New Technique Provides Energy Wirelessly  

Science Journals Connector (OSTI)

Topics include a new technology for fast personal-area networks; an innovative antiphishing approach; a wireless system for powering and charging devices; and a wall that users could touch to control lights, appliances, and other items in a room. Keywords: IEEE 802.15.3c-2009, wireless personal area networks, WPANs, phishing, antiphishing, Phishgig, WiTricity, wireless power, MIT, Living Wall, conductive paint, sensors

Linda Dailey Paulson

2010-04-01T23:59:59.000Z

451

Wireless Communications in Smart Grid  

Science Journals Connector (OSTI)

Communication networks play a crucial role in smart grid, as the intelligence of this complex system ... essential part of the scalable communication infrastructure for smart grid. In particular, wireless network...

Zoran Bojkovic; Bojan Bakmaz

2014-01-01T23:59:59.000Z

452

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

E-Print Network [OSTI]

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

Rossi, Michele

453

Wireless, automated monitoring for potential landslide hazards  

E-Print Network [OSTI]

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...

Garich, Evan Andrew

2007-09-17T23:59:59.000Z

454

Throughput Scalability of Wireless Hybrid Networks over a Random Geometric Graph  

Science Journals Connector (OSTI)

In this paper, we consider the transport capacity of ad hoc networks with a random flat topology under the present support of an infinite capacity infrastructure network. Such a network architecture allows ad ...

Ula? C. Kozat; Leandros Tassiulas

2005-07-01T23:59:59.000Z

455

An On-Demand Energy-Efficient Routing Algorithm for Wireless Ad Hoc Networks  

Science Journals Connector (OSTI)

Ad hoc networks are non-infrastructure networks which consist of mobile nodes. Since the mobile nodes have limited battery power, it is very important to use energy efficiently in ad hoc networks. In order ... ro...

Hong-Ryeol Gil; Joon Yoo; Jong-Won Lee

2003-01-01T23:59:59.000Z

456

Wireless System Considerations When Implementing NERC Critical  

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

Wireless System Considerations When Implementing NERC Critical Wireless System Considerations When Implementing NERC Critical Infrastructure Protection Standards Wireless System Considerations When Implementing NERC Critical Infrastructure Protection Standards Energy asset owners are facing a monumental challenge as they address compliance with the North American Electric Reliability Corporation (NERC) Critical Infrastructure Protection (CIP) Standards (CIP-002 through CIP-009). The increased use of wireless technologies and their introduction into control center networks and field devices compound this challenge, as ambiguity exists regarding the applicability of the CIP requirements to wireless networking technologies. Wireless System Considerations When Implementing NERC Critical Infrastructure Protection Standards More Documents & Publications

457

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]

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...

Li, Jiahao

2013-12-09T23:59:59.000Z

458

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]

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

Barthelat, Francois

459

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

460

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

E-Print Network [OSTI]

-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

Jagannatham, Aditya K.

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

TA-MAC: Task Aware MAC Protocol for Wireless Sensor Networks  

E-Print Network [OSTI]

-constrained device. This is because the main mission of wireless sensor nodes is to gather some information source is idle listening, i.e., listening to receive possible traffic while the node is idle state. Idle listening becomes more worse in WSNs, where there exist a number of nodes that are not involved in data

462

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

E-Print Network [OSTI]

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

Picco, Gian Pietro

463

Abstract--Rapid advances in wireless communications and networking technologies, linked with advances in computing  

E-Print Network [OSTI]

of the current status and challenges of mobile health systems (m-health) in emergency healthcare systems and wireless connections in e-health systems. The emerging development of m-health systems in the last decade of m-health systems and applications and the potential benefits of these efforts was presented

Pitsillides, Andreas

464

IEEE COMMUNICATIONS LETTERS, ACCEPTED FOR PUBLICATION 1 Reliability Analysis of Wireless Sensor Networks with  

E-Print Network [OSTI]

IEEE COMMUNICATIONS LETTERS, ACCEPTED FOR PUBLICATION 1 Reliability Analysis of Wireless Sensor that energy conservation is crucial in sensor node (SN) design to prolong the WSN lifetime. A WSN and correctness proof. Performance issues, especially in energy conservation to best tradeoff security failure

Chen, Ing-Ray

465

Market-based computational task assignment within autonomous wireless sensor networks  

E-Print Network [OSTI]

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

Lynch, Jerome P.

466

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

E-Print Network [OSTI]

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

Rossi, Sabina

467

Performance evaluation of time synchronization and clock drift compensation in wireless personal area networks  

Science Journals Connector (OSTI)

Efficient algorithms for time synchronization, including compensation for clock drift, are essential in order to obtain reliable fusion of data samples from multiple wireless sensor nodes. This paper evaluates the performance of algorithms based on three ... Keywords: IEEE 802.15, bluetooth, clock drift, data fusion, time synchronization

Jonas Wĺhslén; Ibrahim Orhan; Dennis Sturm; Thomas Lindh

2012-02-01T23:59:59.000Z

468

Minimum Power Assignment in Wireless Ad Hoc Networks with Spanner Property  

E-Print Network [OSTI]

be tested in polynomial time and is monotone [1], to minimize the maximum assigned power. We also give, they communicate through multi-hop wireless links by using intermediate nodes to relay the message. Larger distance uv . In other words, wuv > wxy if uv > xy and wuv = wxy if uv = xy . For example

Li, Xiang-Yang

469

Minimum Power Assignment in Wireless Ad Hoc Networks with Spanner Property  

E-Print Network [OSTI]

be tested in polynomial time, to minimize the maximum assigned power. We also give polynomial time through multi-hop wireless links by using intermediate nodes to relay the message. Generally, nodes nodes u and v is a monotone increasing function of the Euclidean #12;distance uv . In other words, wuv

Li, Xiang-Yang

470

Give2Get: Forwarding in Social Mobile Wireless Networks of Selfish Individuals  

E-Print Network [OSTI]

effect to improve performance by reducing the number of replicas and the storage requirements. We test their life. Typically, these devices can communicate with each other over short distances by using wireless thanks to intermediate relays. One fundamental and natural question, especially in this setting, is why

Mei, Alessandro

471

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

E-Print Network [OSTI]

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

Rincon-Mora, Gabriel A.

472

Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor  

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

Wireless Sensor Networks for Data Centers to someone by E-mail Wireless Sensor Networks for Data Centers to someone by E-mail Share Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Facebook Tweet about Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Twitter Bookmark Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Google Bookmark Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Delicious Rank Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on Digg Find More places to share Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor Networks for Data Centers on

473

Load balancing and adaptive scheduling for data intensive prioritised traffic in multi-radio multi-channel wireless mesh networks  

Science Journals Connector (OSTI)

In recent times, wireless technology has emerged as a key technology for many data intensive applications such as Video on Demand (VoD), Voice over IP (VoIP), high speed internet access, video conferencing, etc. All these applications require high data rate so that data can be transmitted to the end users in a prioritised manner. The underlying system that suits these applications better is the Wireless Mesh Network (WMN), because it is a special type of network which is cost effective, resilient and adaptive. To preserve the Quality of Service (QoS) for all these applications, in this paper, we propose a Load Balancing and Adaptive Scheduling (LBAS) algorithm for data intensive prioritised traffic in WMNs. To schedule the incoming traffic, the Available Capacity (AC) and Load Index (LI) of each link is calculated. A new Cost Evaluation Function (CEF) is defined based upon the values of AC and LI. Each traffic flow is also associated with Rate Index (RI) and Delay Estimation (DE). Each link has lower and upper bounds on AC, and as soon as the load on a particular link crosses these bounds, the load is transferred to another link dynamically at run time. Higher priority traffic will be assigned to the link having high value of AC to minimise DE, and simultaneously, a matrix for LI is also constructed. This matrix is used to keep track of the system load at run time, so that scheduling can be done for the incoming traffic in a prioritised manner based upon the values of AC and LI. The performance of the proposed algorithm is evaluated using simulations on ns-2 with respect to various metrics. The results obtained show that the proposed algorithm is quite effective for balancing the load of multiclass traffic flows.

Neeraj Kumar; Naveen Chilamkurti; Jong Hyouk Park; Doo Soon Park

2013-01-01T23:59:59.000Z

474

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...

475

A Real-World, Simple Wireless Sensor Network for Monitoring Electrical Energy Consumption  

Science Journals Connector (OSTI)

We present a simple, commercial WSN for monitoring electrical energy consumption. We discuss WSN characteristics, practical problems, constraints and design decisions which mainly are motivated by our concrete...

Cornelia Kappler; Georg Riegel

2004-01-01T23:59:59.000Z

476

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]

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

Wu, Jie

477

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

E-Print Network [OSTI]

??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)

Hedayati, Mozhgan

2010-01-01T23:59:59.000Z

478

Multichannel Virtual Access Points for Seamless Handoffs in IEEE 802.11 Wireless Networks  

E-Print Network [OSTI]

to extend wired networks due to their rapid deployment and easy configuration. These characteristics of such networks are university campuses, convention centers, airports, and corpo- ration intranets. Because APs

Paris-Sud XI, Université de

479

ActiveSTB: an efficient wireless resource manager in home networks  

E-Print Network [OSTI]

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...

Hall, Varrian Durand

2009-05-15T23:59:59.000Z

480

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...

Note: This page contains sample records for the topic "network commercial wireless" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

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...

482

A novel trade-off between communication and computation costs for data aggregation in wireless sensor networks  

Science Journals Connector (OSTI)

Wireless Sensor Networks (WSNs) consist of inexpensive low-power miniature sensing devices with severe power constraints, necessitating energy-efficient solutions for networking operations. Major prior art proposals have been primarily directed towards minimising the communication cost, either implicitly assuming away the computation overhead as being negligible, or radically trading against it. However, in computation-bound scenarios, dealing with a large volume of data, such simplifying assumptions or radical measures tend to be inefficient. In this paper, we investigate the problem of minimising the overall energy needed to send data from a set of sensor nodes to a single destination, where each node is in charge of a mission. Two types of missions are defined: sensing and decision making; while source nodes are only in charge of sensing, relay nodes can carry out both missions simultaneously. More specifically, given a node's current backlog and its latest view on the relevant portion of the data-gathering tree, taking on the decision-making mission involves deriving an online trade-off between energy costs of compression and communication, and deciding between sending data either in the raw mode or alternatively compressed with a feasible optimal compression ratio. The used data compression technique depends on the type of application and the spatiotemporal correlation in the packets. Simulation experiments reveal that, compared with previous methods, the proposed scheme exhibits superior energy efficiency with an additional 36% reduction of the costs.

N. Arastouie; M. Sabaei; V. Hakami; S. Soltanali

2013-01-01T23:59:59.000Z

483

Wireless Technologies for Structural Wireless Technologies for Structural Health MonitoringHealth Monitoring  

E-Print Network [OSTI]

Wireless Technologies for Structural Wireless Technologies for Structural Health MonitoringHealth Monitoring Dr. Jerome P. Lynch Department of Civil and Environmental Engineering Department of Electrical of Michigan Slide #2 8/12/2012 · Introduction · Hardware design of wireless sensors: ­ Commercial and academic

484

Towards Green Optical/Wireless In-Building Networks: Radio-Over-Fiber  

Science Journals Connector (OSTI)

Energy efficiency has become a major paradigm in the design and operation of future telecommunication networks. Recent studies show that the aggregate power consumption of in-building...

Gowda, Apurva S; Dhaini, Ahmad R; Kazovsky, Leonid G; Yang, Hejie; Abraha, Solomon T; Ng’oma, Anthony

2014-01-01T23:59:59.000Z

485

2294 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 6, JUNE 2007 Wireless Profiled TCP Performance over  

E-Print Network [OSTI]

2294 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 6, JUNE 2007 Wireless Profiled TCP Performance over Integrated Wireless LANs and Cellular Networks Humphrey Rutagemwa, Student Member, IEEE-- An analytical framework for studying the per- formance of Wireless Profiled TCP (WP-TCP) flows over

Shen, Xuemin "Sherman"

486

Localization in Ad Hoc and Sensor Wireless Networks with Bounded Errors  

E-Print Network [OSTI]

region can be found with a mean error of one foot and a two-foot error bound. Keywords: Localization, error bound, sensor network, position, distance estimates 1 Introduction Advancements in low-power of a networked sensor include: (1) small physical size, (2) low power consumption, (3) limited processing power

Terwilliger, Mark

487

On Relay Nodes Deployment for Distributed Detection in Wireless Sensor Networks  

E-Print Network [OSTI]

considered the use of relaying to improve the energy-efficiency of the sensor network. The work in [8] also the energy-efficiency of the sensor network. Our interest in this paper will be focused on how to deploy Engineering, Alexandria University, Alexandria 21544, Egypt. and Institute for Systems Research kseddik

Liu, K. J. Ray

488

Reducing Power Consumption in Wireless Sensor Networks Using a Novel Approach to Data Aggregation  

Science Journals Connector (OSTI)

......low duty cycle operation. These protocols...TinyOS operating system [15]. B-MAC...activity using a low power listening. If...query processing system for sensor networks...intersection. In: Handbook of Multisensor...Versatile low power media access for...Networked Sensor Systems, November 3-5......

Silvio Croce; Francesco Marcelloni; Massimo Vecchio

2008-03-01T23:59:59.000Z

489

Optimal joint utility based load balancing algorithm for heterogeneous wireless networks  

Science Journals Connector (OSTI)

The rapid development of mobile broadband services with continuously increasing traffic volumes has resulted in a number of challenges, including ubiquitous network coverage, high bandwidth, and reliable services for reasonable price, etc. To address ... Keywords: EPS, Heterogeneous network, Joint utility, Load balancing, Optimization

Rong Chai, Huili Zhang, Xiaoyu Dong, Qianbin Chen, Tommy Svensson

2014-08-01T23:59:59.000Z

490

Sizes of Minimum Connected Dominating Sets of a Class of Wireless Sensor Networks  

E-Print Network [OSTI]

to remain in sleep mode in order to conserve energy. We derive the expected value and the distribution of N for single dimensional dense networks. I. INTRODUCTION To prolong network lifetime, energy conservation. To achieve this goal, short-hop- communication are generally considered as a better choice compared to its

Andrew, Lachlan

491

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

E-Print Network [OSTI]

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

Politècnica de Catalunya, Universitat

492

On the Connectivity in One-Dimensional Ad Hoc Wireless Networks with a Forbidden Zone  

E-Print Network [OSTI]

the ocean temperature for an accurate weather prediction, detecting the 1 Email: xdhu@mspil.edu.cn 2 Email region [7]. As each node in the ad hoc networks has a limit transmis- sion power and the networks have in the future. 2. Main results and proofs In order to state our main results, we first introduce some

493

A Hybrid Testbed for a Seamless Combination of Wireless Sensor Networks and OMNeT++ Simulations  

E-Print Network [OSTI]

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

Turau, Volker

494

Nemo: A High-fidelity Noninvasive Power Meter System for Wireless Sensor Networks  

E-Print Network [OSTI]

installed on exist- ing mote platforms without physical wiring or soldering. We have implemented a prototype the significant research efforts in energy- aware approaches at various network layers (MAC/routing/ application

495

Adaptive Resource Allocation for Statistical QoS Provisioning in Mobile Wireless Communications and Networks  

E-Print Network [OSTI]

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...

Du, Qinghe

2012-02-14T23:59:59.000Z

496

Scalable Coordination for Wireless Sensor Networks: Self-Configuring Localization Systems  

E-Print Network [OSTI]

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

Heidemann, John

497

Adaptive Congestion Control Under Dynamic Weather Condition for Wireless and Satellite Networks  

Science Journals Connector (OSTI)

Broadband satellite-based IP networks have been considered as ... strong and promising next-generation market. In satellite communication systems, the channel performance might be severely degraded due to the dyn...

Hongqing Zeng; Anand Srinivasan; Brian Cheng…

2007-01-01T23:59:59.000Z

498

Water Distribution System Monitoring and Decision Support Using a Wireless Sensor Network  

E-Print Network [OSTI]

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 ...

Allen, Michael

499

Design and Analysis of Opportunistic MAC Protocols for Cognitive Radio Wireless Networks  

E-Print Network [OSTI]

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...

Su, Hang

2012-02-14T23:59:59.000Z

500

Low Energy Wireless Body-Area Networks for Fetal ECG Telemonitoring via the Framework of Block Sparse Bayesian Learning  

E-Print Network [OSTI]

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...

Zhang, Zhilin; Makeig, Scott; Rao, Bhaskar D

2012-01-01T23:59:59.000Z