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Note: This page contains sample records for the topic "wireless sensor networks" 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

Wireless Sensor Network Fundamentals  

NLE Websites -- All DOE Office Websites (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

2

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

3

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

4

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 supportÖ (more)

JAWAD ALI, SYED

2008-01-01T23:59:59.000Z

5

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

6

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-A√ęl

7

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

8

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

NLE Websites -- All DOE Office Websites (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...

9

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

10

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

11

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.

12

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

13

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

14

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

15

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

16

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

17

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

18

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

19

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

20

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

Note: This page contains sample records for the topic "wireless sensor networks" 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 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

22

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

23

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

24

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

25

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

26

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

27

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

28

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 ZhuÖ

2010-01-01T23:59:59.000Z

29

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

30

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

31

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

32

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

33

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

34

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

35

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

36

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

37

FEMP Technology Brief: Wireless Sensor Networks for Data Centers |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

38

FEMP Technology Brief: Wireless Sensor Networks for Data Centers |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

39

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

40

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

Note: This page contains sample records for the topic "wireless sensor networks" 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

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

42

Time Synchronization in Hierarchical TESLA Wireless Sensor Networks  

SciTech Connect

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

43

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.

44

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

45

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 £ 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.

46

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

47

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

48

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

49

-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¬Ę @cs.ucc.ie Abstract-- For the long-term deployment of wireless sensor

Roedig, Utz

50

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.

51

TCPL: A Defense against wormhole attacks in wireless sensor networks  

SciTech Connect

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

52

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.

53

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

54

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

55

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.

56

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

57

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

58

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.

59

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

60

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

Note: This page contains sample records for the topic "wireless sensor networks" 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

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

62

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

63

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

64

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

65

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

66

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; Baraía A. Attea

2014-08-01T23:59:59.000Z

67

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

68

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.

69

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

70

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

71

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.

72

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

73

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

74

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

75

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 √∑ 2000 nodes, MAC and network layer to develop wireless sensors networks tailored for oil (and gas) exploration

Savazzi, Stefano

76

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

77

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

78

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

79

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

80

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.

Note: This page contains sample records for the topic "wireless sensor networks" 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
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81

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

82

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

83

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

84

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

85

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

86

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 MaciŠ-Pťrez; Diego Marcos-Jorquera; Virgilio Gilart-Iglesias

2012-05-01T23:59:59.000Z

87

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

88

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-FerriŤre; Laurent Fabre; Roger Meier; Pierre Metrailler

2006-04-01T23:59:59.000Z

89

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

90

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

91

Wireless Sensor Network for Advanced Energy Management Solutions  

SciTech Connect

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 Eatonís 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

92

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

93

GINSENG: Performance Control in Wireless Sensor Networks  

E-Print Network (OSTI)

35,000 sensors and actuators that are used to monitor and control all operations of the refineryMAC, designed to be such a MAC protocol. Also included are details of a deployment to the GALP oil refinery refinery in Portugal, where performance is critical. Performance Debugging Industry IT Systems Performance

Roedig, Utz

94

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

95

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

96

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

97

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

98

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

99

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

100

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 Gimťnez; BenjamŪn Molina; Jaime Calvo-Gallego; Manuel Esteve; Carlos E. Palau

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless sensor networks" 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

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

102

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

103

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

104

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 50Ė100 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

105

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

106

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

107

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.

108

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 HeoÖ

2011-01-01T23:59:59.000Z

109

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

110

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

111

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

112

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

113

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

114

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

115

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

116

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

117

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

118

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 RosŠrio, Zhongliang Zhao, Torsten Braun, Eduardo Cerqueira

2014-01-01T23:59:59.000Z

119

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

120

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

Note: This page contains sample records for the topic "wireless sensor networks" 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

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

122

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

123

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

124

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

125

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 vehicleĖbridge interaction. In recent years, interest in vehicleĖbridge 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 vehicleĖbridge 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 vehicleĖbridge 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

126

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

127

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

128

.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.

129

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

130

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

131

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; Jťrťmie Leguay; Gianluigi Ferrari; Vincent Gay; Mario Lopez-Ramos

2012-06-01T23:59:59.000Z

132

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

133

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

134

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

135

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

136

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

137

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

138

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

139

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

140

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 "wireless sensor networks" 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

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

142

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

143

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

144

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

145

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

146

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

147

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

148

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

149

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

150

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

151

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

152

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

153

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

154

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

155

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

156

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

157

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

158

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

159

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

160

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

Note: This page contains sample records for the topic "wireless sensor networks" 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

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 sensorís 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

162

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

163

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

164

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

NLE Websites -- All DOE Office Websites (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... ....

165

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

166

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

167

Sensor network algorithms and applications  

Science Journals Connector (OSTI)

...range-based localization methods for wireless sensor networks. They review...compression techniques for wireless sensor networks. They pay...consuming hundreds of megawatts of electricity. Careful monitoring of large...of the state of the art in wireless sensor networks. The articles...

2012-01-01T23:59:59.000Z

168

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

169

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

170

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

171

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

172

Federal Energy Management Program: FEMP Technology Brief: Wireless Sensor  

NLE Websites -- All DOE Office Websites (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

173

Energy Efficient Distributed Data Fusion In Multihop Wireless Sensor Networks  

E-Print Network (OSTI)

energy cost of consensus estimation with that of progressive estimation under the same sensor constellation and

Huang, Yi

2010-01-01T23:59:59.000Z

174

Lifetime Maximization in Wireless Sensor Networks with an Estimation Mission  

E-Print Network (OSTI)

unit of time (namely, sensor measurement rate) and the routes to the FC are controlled. Sensor spatial correlation, measurement accuracies, link qualities and energy reserves affect sensor measurement rates consumes energy. Sensor measurement rate control and routing need to account for spatial correlation

Koutsopoulos, Iordanis

175

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

176

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

177

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"

178

Energy Efficient Distributed Data Fusion In Multihop Wireless Sensor Networks  

E-Print Network (OSTI)

since sensors are only equipped with limited batteries.the replace- ment of batteries can be costly, evenand drain the batteries quickly. For convenience, hereafter

Huang, Yi

2010-01-01T23:59:59.000Z

179

Localized Topology Control for Heterogeneous Wireless Sensor Networks  

E-Print Network (OSTI)

performances. Hence it can efficiently conserve the transmission energy from soft aspects with low cost, and assuming that a message sent by a sensor node will be received by all sensors within its transmission(n) total messages, where each message has O(log n) bits. We also conduct extensive simulations to study

Li, Xiang-Yang

180

Performance of wireless sensor networks under random node failures  

SciTech Connect

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

Note: This page contains sample records for the topic "wireless sensor networks" 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

Optimization of Power Consumption for Wireless Sensor Networks  

Science Journals Connector (OSTI)

Transmission using excess power not only shortens the lifetime of sensor nodes, but also introduces interference. Packets should ideally be transmitted with moderate power. This work proposes a multi-level pow...

Sheng-Tzong Cheng; Jia-Shing Shih

2012-01-01T23:59:59.000Z

182

Dynamic Multi-resolution Data Dissemination in Wireless Sensor Networks  

E-Print Network (OSTI)

.g., batteries or small solar panels) for extended lifetime. Particularly, how to achieve power-efficient, multi to users at the minimum power consumption as sensor nodes must operate on limited power sources (e

183

Distributed Audit Secure Data Aggregation for Wireless Sensor Networks  

Science Journals Connector (OSTI)

Data aggregation can reduce the communication overhead and energy expenditure of sensor nodes, as well as ... injection attacks. This paper proposes a distributed audit secure data aggregation protocol. The aggre...

Zhengdao Zhang; Zhiping Zhou

2013-01-01T23:59:59.000Z

184

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

185

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

186

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

187

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.

188

Forest Fire Modeling and Early Detection using Wireless Sensor Networks  

E-Print Network (OSTI)

cases fires are part of the forest ecosys- tem and they are important to the life cycle of indigenous. The analysis of the FWI System could be of interest in its own right to researchers working in the sensor Columbia, Canada. The fire was spread by the strong wind and within a few days it turned into a firestorm

Zhang, Richard "Hao"

189

Towards Autonomous Indoor Flights Using Wireless Sensor Network Based Localization  

E-Print Network (OSTI)

, in no way stable. Therefore, we introduce a sensor array, which reduces the system dynamics and allows. This reduces the amount of independent degrees to four: pitch, roll, yaw, and altitude (also indirectly controlled by thrust). Even if it would be possible to perfectly control the pitch and roll axes, the system

Breu, Ruth

190

Resource Optimization in a Wireless Sensor Network with Guaranteed Estimator  

E-Print Network (OSTI)

algorithm at the fusion center, and provide a closed-form expression for the steady-state error covariance energy consumption and guarantees a desired level of estimation quality at the fusion center. We further a single sensor may not be enough to provide a desired level of estimation quality, and data fusion from

Murray, Richard M.

191

Exploring Architectural Challenges in Scalable Underwater Wireless Sensor Networks  

E-Print Network (OSTI)

on climate and living conditions of plants and animals ­ Marine microorganism ­ Pollution Disaster early Coastline protection and tactical surveillance Target detection ­ Mine ­ Shipwreck 4 of 12 Application control Existing Approaches ­ Ship tethered with chains of sensors moves from one end to the other ­ Cons

Shi, Zhijie Jerry

192

Deploying a wireless sensor network in Iceland Kirk Martinez1  

E-Print Network (OSTI)

of the Jostedal icecap in Norway. As a multi-disciplinary research project it involved people from many domains and the wind generator. #12;Probes The sensor probe was developed around a low voltage version of a PIC18 Lithium Thionyl Chloride cells chosen for their high energy density and wired in parallel, that constantly

Southampton, University of

193

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

194

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

195

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

196

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

197

Scatter Ė 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

198

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

199

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

200

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

Note: This page contains sample records for the topic "wireless sensor networks" 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

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

202

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

203

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

204

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

205

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

206

Wireless Sensors Improve Data Center Efficiency  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Wireless Sensor Wireless Sensor Technology Overview In most buildings, space conditions are controlled and coordinated by a building automation system (BAS). A BAS can provide temperature visualization information with dashboard displays through a person-machine interface (PMI). However, in most data centers, space conditioning is achieved with multiple, independently-operating cooling units located within the space. Unfortunately, these data centers do not have adequate auto- mation systems or visualization tools to monitor or manage these cooling units efficiently. In 2001, an emerging technology was demonstrated at University of California, Davis by Dr. Raju Pandey that "meshed" temperature sensors into a network using wireless fidelity (Wi-Fi

207

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 ACĖDC 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

208

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.Ö (more)

Gill, Satinder Pal Singh

2013-01-01T23:59:59.000Z

209

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 nodeís 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

210

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.

211

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

212

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

213

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.

214

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

215

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

216

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

217

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

218

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

219

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

220

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

Note: This page contains sample records for the topic "wireless sensor networks" 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.


221

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

222

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

223

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

224

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

225

Pro-active Strategies for the Frugal Feeding Problem in Wireless Sensor Networks  

E-Print Network (OSTI)

Sensor Networks. The FFP attempts to find energy-efficient routes for a mobile service entity for the case of a fixed rendezvous location (i.e., service facility with limited number of docking ports) and mobile capable entities (sensors). Our pro-active solution reduces the FFP to finding energy

Lanthier, Mark

226

An Ultra Low Power System Architecture for Sensor Network Applications  

Science Journals Connector (OSTI)

Recent years have seen a burgeoning interest in embedded wireless sensor networks with applications ranging from habitat monitoring to medical applications. Wireless sensor networks have several important attributes that require special attention to ...

Mark Hempstead; Nikhil Tripathi; Patrick Mauro; Gu-Yeon Wei; David Brooks

2005-06-01T23:59:59.000Z

227

Signal Compression in Wireless Sensor By Marco F. Duarte1  

E-Print Network (OSTI)

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

228

Centdian computation for sensor networks  

Science Journals Connector (OSTI)

This paper focuses on the centdian problem in a cactus network where a cactus network is a connected undirected graph, and any two simple cycles in the graph have at most one node in common The cactus network has important applications for wireless ... Keywords: cactus graph, centdian node, distributed algorithm, sensor network

Boaz Ben-Moshe; Amit Dvir; Michael Segal; Arie Tamir

2010-06-01T23:59:59.000Z

229

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

E-Print Network (OSTI)

Complex Network Topologies (CNTs)Ėnetwork holes and cutsĖoften 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

230

Wireless sensor networks for off-shore oil and gas installations  

E-Print Network (OSTI)

the production process, to either prevent or detect oil and gas leakage or to enhance the production flow ­ Underwater development and production of oil and gas needs networked sensors and actuators to monitor and communication technology (ICT) enables the oil, gas and energy (OGE) industries to increase productivity

Gjessing, Stein

231

Lifetime-Aware Hierarchical Wireless Sensor Network Architecture with Mobile Overlays  

E-Print Network (OSTI)

,morteza,pedram}@usc.edu ABSTRACT-- Recent technological advances have led to the emergence of small battery-powered sensors, delay, and local storage size. Fixed event aggregation relays and mobile relays are used to collect lifetime subject to constraints on local storage, delay, and maintenance cost. Network behavior is studied

Pedram, Massoud

232

Scalable Coordination for Wireless Sensor Networks: SelfConfiguring 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 inhospitable terrain (toxic or urban locations). The above requirements impose substantial physical constraints

Heidemann, John

233

Lifetime Approximation Schemes Allow Multicast Algorithm with Linear Message Complexity in Wireless Sensor Networks  

E-Print Network (OSTI)

residual battery energy based on the observation that long-lived multicast / broadcast trees should consume information in order to construct an energy efficient multicast tree. Sometimes, this centralized approach Sensor Networks Mianxiong Dong, Song Guo and Minyi Guo School of Electrical and Computer Engineering

Guo, Minyi

234

Performance Analysis of Error Control Codes for Wireless Sensor Networks Gopinath Balakrishnan  

E-Print Network (OSTI)

-intensive as the average energy consumption per useful bit grows exponentially with the constraint length of the code using VHDL. Implementation on FPGA and ASIC design is carried out and the energy consumption is measured scheme to reduce the bit error rate (BER). Due to the stringent energy constraint in sensor networks

Yang, Mei

235

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

236

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

237

Mobile Sensor Networks: System Hardware and Dispatch Software  

Science Journals Connector (OSTI)

Wireless sensor networks (WSNs) provide a convenient way to monitor the physical environment. They consist of a large number of sensors that have sensing, computing, and communication abilities. In the past, sensors were considered as static, but the ... Keywords: Dispatch algorithms, mobility management, path planning, sensor hardware, wireless sensor and actuator network

You-Chiun Wang

2014-06-01T23:59:59.000Z

238

Localized Pipeline Encroachment Detector System Using Sensor Network  

E-Print Network (OSTI)

NOMENCLATURE WSN Wireless Sensor Network ROW Right of Way WIFI Wireless Fidelity PC Personal Computer LED Light Emitting Diode USB Universal Serial Bus IEEE Institute of Electrical and Electronics Engineers A/D Analog to Digital WPAN Wireless... NOMENCLATURE WSN Wireless Sensor Network ROW Right of Way WIFI Wireless Fidelity PC Personal Computer LED Light Emitting Diode USB Universal Serial Bus IEEE Institute of Electrical and Electronics Engineers A/D Analog to Digital WPAN Wireless...

Ou, Xiaoxi 1986-

2011-08-08T23:59:59.000Z

239

Market-Based Resource Allocation for Energy-Efficient Execution of Multiple Concurrent Applications in Wireless Sensor Networks  

Science Journals Connector (OSTI)

Many engineering disciplines have become reliant on WSNs in order to detect and track certain events of interest by monitoring various variables, through a number of specially distributed wireless sensors. Due to...

Mo Haghighi

2014-01-01T23:59:59.000Z

240

Robust and distributed range-free localization using anchor nodes with varying communication range for three dimensional wireless sensor networks  

Science Journals Connector (OSTI)

Localization of the nodes in a sensor network is a premier activity which influences the performance of the network. The data collected by a sensor node may become useless if the location of that node is not known. Sensor networks are mostly deployed ...

Manas Kumar Mishra; M. M. Gore

2011-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless sensor networks" 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

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

242

A Dynamic Localized Minimum-Energy Agent Tree-Based Data Dissemination Scheme for Wireless Sensor Networks  

E-Print Network (OSTI)

A Dynamic Localized Minimum-Energy Agent Tree-Based Data Dissemination Scheme for Wireless Sensor this prob- lem by proposing a minimum-energy tree-based data dissemination scheme, Dynamic Localized Minimum-Energy Agent Tree-Based Scheme (DLATS). We exploit the fact that sensor nodes are stationary and location

Holliday, JoAnne

243

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

244

Sustainability of Self-Configuring Wireless Sensor Bozena Kaminska  

E-Print Network (OSTI)

Sustainability of Self-Configuring Wireless Sensor Networks Bozena Kaminska Simon Fraser University monitoring and security. Those applications impose requirements for sustained, reliable, and fault-tolerant operation. We introduce a new ad-hoc wireless architecture in which forwarding is based on associativity

Gburzynski, Pawel

245

CCEC Seminar Wireless Sensors for SemiconductorWireless Sensors for Semiconductor  

E-Print Network (OSTI)

CCEC Seminar Wireless Sensors for SemiconductorWireless Sensors for Semiconductor Manufacturing perhaps. In this talk, we describe our efforts in developing a new class of wireless sensors for use in semiconductor manufacturing. These sensors are fully self-contained with on board power, communications

Akhmedov, Azer

246

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

247

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

248

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

NLE Websites -- All DOE Office Websites (Extended Search)

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

249

Data Dissemination with Ring-Based Index for Wireless Sensor Networks Wensheng Zhang, Guohong Cao and Tom La Porta  

E-Print Network (OSTI)

that the index-based scheme outperforms the external storage-based scheme, the DCS scheme, and the local storage and achieve load balance. 1. Introduction Recent advances in electronic and communication tech- nology have enabled the production of battery powered wireless sensor nodes. These nodes are capable of not only

Zhang, Wensheng

250

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

251

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

252

Wireless Sensors Improve Data Center Efficiency  

Energy.gov (U.S. Department of Energy (DOE))

Case study bulletin describes how to improve data center energy efficiency for wireless sensors, and how to use that information to manage the data center.

253

Low-Cost Wireless Sensors for Building Monitoring Applications...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Low-Cost Wireless Sensors for Building Monitoring Applications Low-Cost Wireless Sensors for Building Monitoring Applications Lead Performer: Oak Ridge National Laboratory - Oak...

254

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

255

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

256

IN11A-0102: Turtle Nest Monitoring with Wireless Sensor Networks K. Szlavecz1, A. Terzis1, R. Musaloiu1, C.-J. Liang1, J. Cogan1, A. Szalay1, J. Gupchup1, J. Klofas1, L. Xia1  

E-Print Network (OSTI)

IN11A-0102: Turtle Nest Monitoring with Wireless Sensor Networks K. Szlavecz1, A. Terzis1, R-1-0991(PACER) Dry This is the first study to demonstrate Box Turtle nesting conditions in situ. Sensors showed Turtles, like other turtles, lay eggs in the soil where solar radiation provides the heat for incubation

Amir, Yair

257

Wireless sensor node localization  

Science Journals Connector (OSTI)

...need to be asymmetrical, with small, passive sensor nodes listening for signals from one or more larger transmitters. The fact...is dropping. For example, the $600 MEMS-based analogue device ADIS16360 unit has a tri-axis accelerometer and a tri-axis...

2012-01-01T23:59:59.000Z

258

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

259

Energy Efficient Model for Data Gathering in Structured Multiclustered Wireless Sensor Networks  

E-Print Network (OSTI)

constrained sensor nodes as the replacement of battery is a major issue in an application like power monitoring systems. 1 Introduction Advances in VLSI technology have enabled the development of low, and limited storage, have to be taken into considerations when deploying large sensor net- works

260

An Efficient N-to-1 Multipath Routing Protocol in Wireless Sensor Networks  

E-Print Network (OSTI)

of low-cost sensor nodes which work collectively to carry out some real-time sensing and monitoring tasks ground, the remote sensing in nuclear plants, mines, and other hazardous industrial venues, real is typically formed around one (or more) base station (BS, a.k.a. sink). All the sensor nodes are usually

Hou, Y. Thomas

Note: This page contains sample records for the topic "wireless sensor networks" 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 sensor tag platform for container security and integrity  

SciTech Connect

Cargo containers onboard ships are widely used in the global supply chain. The need for container security is evidenced by the Container Security Initiative launched by the U.S. Bureau of Customs and Border Protection (CBP). One method of monitoring cargo containers is using low power wireless sensor tags. The wireless sensor tags are used to set up a network that is comprised of tags internal to the container and a central device. The sensor network reports alarms and other anomalies to a central device, which then relays the message to an outside network upon arrival at the destination port. This allows the port authorities to have knowledge of potential security or integrity issues before physically examining the container. Challenges of using wireless sensor tag networks for container security include battery life, size, environmental conditions, information security, and cost among others. PNNL developed an active wireless sensor tag platform capable of reporting data wirelessly to a central node as well as logging data to nonvolatile memory. The tags, operate at 2.4 GHz over an IEEE 802.15.4 protocol, and were designed to be distributed throughout the inside of a shipping container in the upper support frame. The tags are mounted in a housing that allows for simple and efficient installation or removal prior to, during, or after shipment. The distributed tags monitor the entire container volume. The sensor tag platform utilizes low power electronics and provides an extensible sensor interface for incorporating a wide range of sensors including chemical, biological, and environmental sensors.

Amaya, Ivan A.; Cree, Johnathan V.; Mauss, Fredrick J.

2011-05-06T23:59:59.000Z

262

Spring 2006 CS 649 1 Sensor Networks  

E-Print Network (OSTI)

· Execution engine for scripting language · Code size #12;Programming Wireless Sensors Spring 2006 CS 649 3Spring 2006 CS 649 1 CS649 Sensor Networks Lecture 25: Reprogramming Andreas Terzis http://hinrg.cs.jhu.edu/wsn06/ #12;Outline Spring 2006 CS 649 2 · Problem: Reprogram the network after it is deployed

Amir, Yair

263

Wireless Sensors for Data Centers  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Proving Ground Proving Ground Wireless Sensors for Data Centers Kevin Powell |May 23 2012 | FEMP Technology Deployment Working Group 9,624 Owned and Leased Assets 30% Metered Energy Reduction, by 2015 NET ZERO In New Construction and Major Remodels, by 2030 EISA 2007 GSA's Green Proving Ground The Green Proving Ground aims to leverage innovative technologies to accelerate GSA's sustainability goals. Program Focus: Identify, test and evaluate innovative technologies to: * Drive innovation in environmental performance in federal buildings * Help lead market transformation through deployment of new technologies. * Reduce GSA operational costs How Does It Work? Green Proving Ground

264

Wireless Sensors for Data Centers  

NLE Websites -- All DOE Office Websites (Extended Search)

Proving Ground Proving Ground Wireless Sensors for Data Centers Kevin Powell |May 23 2012 | FEMP Technology Deployment Working Group 9,624 Owned and Leased Assets 30% Metered Energy Reduction, by 2015 NET ZERO In New Construction and Major Remodels, by 2030 EISA 2007 GSA's Green Proving Ground The Green Proving Ground aims to leverage innovative technologies to accelerate GSA's sustainability goals. Program Focus: Identify, test and evaluate innovative technologies to: * Drive innovation in environmental performance in federal buildings * Help lead market transformation through deployment of new technologies. * Reduce GSA operational costs How Does It Work? Green Proving Ground

265

Energy efficient strategies for wireless sensor networks with varying connectivity properties  

E-Print Network (OSTI)

to replace or recharge the batteries. These systems must beto recharge or replace these batteries, the operation of thethe sensorsí on-board batteries [CZMK03]. Other issues with

Kam, Clement

2010-01-01T23:59:59.000Z

266

A Holistic Approach to Decentralized Structural Damage Localization Using Wireless Sensor Networks  

E-Print Network (OSTI)

Gate Bridge required 9 hours to collect a single round of data from 64 sensors, resulting in a system- tion and energy overhead for data collection. For example, a state-of-art system deployed at the Golden

Lu, Chenyang

267

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

268

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

269

Localized Distance-Sensitive Service Discovery in Wireless Sensor and Actor Networks  

E-Print Network (OSTI)

Mesh. Unlike existing solutions, iMesh uses no global computation and generates constant per-node storage load for sampling their surroundings and reporting to predefined data sinks. As hardware technology advances a sensor is about to deplete its battery power, it discovers an actor carrying battery charger and requests

Stojmenovic, Ivan

270

Data Transmission and Base-Station Placement for Optimizing the Lifetime of Wireless Sensor Networks  

E-Print Network (OSTI)

it supports, with restricted processing and storage capabilities and limited power/energy (battery life number of hops in the routes. Given the battery limitations of the sensor nodes, our objective and outline the benefits of the different approaches. 1 Introduction Recent advances in building powerful

271

A Secure Key Establishment Protocol for ZigBee Wireless Sensor Networks  

Science Journals Connector (OSTI)

......information, is a low cost and low power consumption...industrial controls, medical sensor applications...Since ZigBee is not a lighting control technology anymore...bring any additional cost to the implementations...come at a particular cost. Particularly, the......

Ender YŁksel; Hanne Riis Nielson; Flemming Nielson

2011-04-01T23:59:59.000Z

272

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

E-Print Network (OSTI)

standards. In this paper, we present a web services-based approach to integrate resource constrained sensor-1-60558-824-7 ...$5.00 a lot of energy is consumed by different equipment such as HVAC (heating, ventilating, and air

273

Alert: An Adaptive Low-Latency Event-Driven MAC Protocol for Wireless Sensor Networks  

E-Print Network (OSTI)

- ing MAC protocols are optimized to conserve energy, trad- ing off latency, throughput and other of sensor nodes with minimum latency and without requir- ing any cooperation or pre-scheduling among the application demands better perfor- mance at the expense of some additional energy. If latency

Namboodiri, Vinod

274

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

Science Journals Connector (OSTI)

......Each sensor node is a tiny device composed of three basic units...activity using a low power listening. If the channel is not active...and transmitting messages, listening the radio channel and sleeping...channel adopts a low-power listening (LPL) approach. Figure-2......

Silvio Croce; Francesco Marcelloni; Massimo Vecchio

2008-03-01T23:59:59.000Z

275

Wireless Sensor Networks for Debris Flow Observation , P.H. Chou1*  

E-Print Network (OSTI)

, it is now becoming possible to construct and deploy brand new types of mobile sensor nodes that move, researchers can derive the direction and magnitude of the flow in brand new ways. I. INTRODUCTION In the past geophones, image recognition, etc. to observe debris flow remotely. They are more likely to survive

Shinozuka, Masanobu

276

Defending against Path-based DoS Attacks in Wireless Sensor Networks  

E-Print Network (OSTI)

, and Shivakant Mishra Department of Computer Science University of Colorado Boulder, Colorado, USA Jing, an adversary overwhelms sensor nodes a long distance away by flooding a multi- hop end-to-end communication against a WSN is to overwhelm nodes that are many hops away by flooding packets, which will quickly

Han, Richard Y.

277

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

278

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

279

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

280

Energy Management for Time-Critical Energy Harvesting Wireless Sensor Networks  

E-Print Network (OSTI)

their power consumption. The objective is to maximize the minimum energy reserve over any node in the network algorithms yield significantly higher energy reserves than the approaches without speed and power control. 1 such as solar, wind or wa- ter flow, WSN nodes potentially have perpetual energy supply. However, given

Aydin, Hakan

Note: This page contains sample records for the topic "wireless sensor networks" 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

An Energy-Efficient Multipath Routing Protocol for Wireless Sensor Networks  

E-Print Network (OSTI)

diffusion, directed transmission, and the energy-aware routing protocols. Simulation results show that our scheme. The flooding of interest by sinks allows the gradients to be set up within the network. In [5, which are derived from the flooding. It uses a retransmission probability function to reduce redundant

Wong, Vincent

282

Distributed Protocols for Ensuring Both Coverage and Connectivity of a Wireless Sensor Network  

E-Print Network (OSTI)

Additional Key Words and Phrases: ad hoc network, coverage, connectivity, energy conservation, power control' communication ranges are no less than twice their sensing ranges. In this paper, without relying on this strong is the first work allowing an arbitrary relationship between sensing ranges and communication distances

Tseng, Yu-Chee

283

Babel: Using a Common Bridge Node to Deliver Multiple Keys in Wireless Sensor Networks  

E-Print Network (OSTI)

investigated efficient data delivery, energy conservation, and other related issues [1]. Network security has@cs.uno.edu Yunghsiang S. Han Graduate Institute of Communication Engineering National Taipei University Sanhsia, Taipei and modification. In order to provide security for communication and data col- lection in WSNs, security keys need

Deng, Jing

284

Energy-aware Node Placement in Wireless Sensor Networks Peng Cheng, Chen-Nee Chuah  

E-Print Network (OSTI)

-dependent, the network lifetime can be limited by nodes with heavier data load and thus greater power consumption power, node densities, and huge data volume. Power conservation is a primary concern in prolonging to a sink node. Typical applications include traffic monitoring and data collection in warehouses. Data load

Chuah, Chen-Nee

285

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

286

Macroscopic sensor networks: Application issues in healthcare  

Science Journals Connector (OSTI)

Motes (coin-sized sensors) have the potential to transform the way in which people live and work where computing occurs without human interaction so that data may be pre-processed and made available on demand. Motes may potentially transform the workplace ... Keywords: Wireless sensor networks, healthcare, motes

Elaine Lawrence; Karla Felix Navarro; Josep Riudavets; Marco Messina

2006-04-01T23:59:59.000Z

287

Ultra-wideband radar sensors and networks  

DOE Patents (OSTI)

Ultra wideband radar motion sensors strategically placed in an area of interest communicate with a wireless ad hoc network to provide remote area surveillance. Swept range impulse radar and a heart and respiration monitor combined with the motion sensor further improves discrimination.

Leach, Jr., Richard R; Nekoogar, Faranak; Haugen, Peter C

2013-08-06T23:59:59.000Z

288

New Visualization Tools for Environmental Sensor Networks: Using Google Earth as an Interface to Micro-Climate and Multimedia Datasets  

E-Print Network (OSTI)

a small wireless network of micro-climate sensorsótheReserve has three micro-climate sensor networks developed bymicro-climate sensor and image acquisition networks; the

Sean Askay

2006-01-01T23:59:59.000Z

289

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

290

OASiS: A Service-Oriented Architecture for Ambient-Aware Sensor Networks  

E-Print Network (OSTI)

OASiS: A Service-Oriented Architecture for Ambient-Aware Sensor Networks Xenofon Koutsoukos, Manish of a service-oriented architecture for wireless sensor networks. 1 Introduction Wireless sensor networks (WSNs by multiple clients exercising different functionalities. A service-oriented architecture (SOA) offers

Koutsoukos, Xenofon D.

291

New and Underutilized Technology: Wireless Temperature Sensors | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Wireless Temperature Sensors Wireless Temperature Sensors New and Underutilized Technology: Wireless Temperature Sensors October 4, 2013 - 4:45pm Addthis The following information outlines key deployment considerations for wireless temperature sensors within the Federal sector. Benefits Wireless thermostats are connected into a building automation system. Ease of adding temperature sensors in more zones allows for greater spatial resolution of zone temperatures, increasing confidence in control improvements through thermostat reset. Application Wireless temperature settings are applicable in most building categories. Key Factors for Deployment Ease of moving thermostats increases diagnostic capabilities in checking existing hard-wired thermostats. Ranking Criteria Federal energy savings, cost-effectiveness, and probability of success are

292

Adaptive Sensor Activity Scheduling in Distributed Sensor Networks: A Statistical Mechanics Approach  

E-Print Network (OSTI)

of spatial-temporal events. The sensor network is modeled as a Markov random field on a graph, where concepts and wireless communications have enabled usage of inexpensive and miniaturized sensor nodes [1­3] that can #12;Effective use of sensor networks requires resource-aware operation; once deployed, energy sources

Ray, Asok

293

Petri net based evaluation of energy consumption in wireless sensor nodes  

Science Journals Connector (OSTI)

Wireless Sensor Networks have proven their capability to deal with problems where wide and hardly accessible areas need to be monitored. Among the other systems there are also sensor networks in which nodes can voluntarily modify their positions to better ... Keywords: Environmental Monitoring, Fluid Stochastic Petri Nets, Power Consumption Modelling, Power-Aware Systems

Maurizio D'Arienzo; Mauro Iacono; Stefano Marrone; Roberto Nardone

2013-10-01T23:59:59.000Z

294

Placement of network services in a sensor network  

Science Journals Connector (OSTI)

An important challenge in designing a wireless sensor network is to maximise the network's lifetime. In a hierarchical cluster-based network, a key design issue is the placement of cluster heads (data loggers) such that the total power consumed by the overall network is minimised. Another key design goal is the localisation of sensors. In this study, we consider the placement of beacons and data loggers in the Cosumnes River Preserve. We consider a hybrid network in which the wireless sensors are deployed randomly into an irregular terrain while the data loggers and beacons are placed in a planned manner to satisfy the following three objectives: provide complete area coverage; load balance each cluster; minimise the total power consumption for collecting the data. We formulated an optimisation problem to determine the location of data loggers and beacons ‚?? which is solved using an Integer Linear Program (ILP).

Jennifer Yick; Gregory Pasternack; Biswanath Mukherjee; Dipak Ghosal

2006-01-01T23:59:59.000Z

295

E-Print Network 3.0 - ad hoc sensor Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Engineering ; Computer Technologies and Information Sciences 60 A Taxonomy of Wireless Micro-Sensor Network Models Sameer Tilak Summary: to configure, maintain and optimize...

296

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

297

Environmental sensor network for a pervasive learning space in a Finnish biosphere reserve  

Science Journals Connector (OSTI)

Heroes of Koskenniska is a game-based pervasive learning space that combines mobile and sensor technologies to raise environmental and cultural awareness in a Finnish Biosphere Reserve. An environmental sensor network (ESN) is used to gather and process ... Keywords: biosphere reserve, environmental awareness, environmental sensor network, pervasive learning, wireless sensor network

Teemu H. Laine; Anna Gimbitskaya; Erkki Sutinen; Jinchul Choi; Kitak Yong; Chaewoo Lee

2011-02-01T23:59:59.000Z

298

Sensor network minimal energy routing with latency guarantees  

Science Journals Connector (OSTI)

We consider wireless sensor networks with nodes switching ON (awake) and OFF (sleeping) to preserve energy, and transmitting data over channels with varying quality. The objective is to determine the best path from each node to a single gateway. Performance ... Keywords: energy and resource management, large deviations, latency, routing, sensor networks, sleeping schedule

Wei Lai; Ioannis Ch. Paschalidis

2007-09-01T23:59:59.000Z

299

Power-Constrained actuator coordination for agricultural sensor networks  

Science Journals Connector (OSTI)

Upon the ubiquitous sensor network capable of deciding control actions by a sophisticated inference engine, this paper designs an actuator controller which coordinates the actuator operations over the multiple farms. Basically, not beginning tasks as ... Keywords: actuator schedule, demand response, farm group, peak power reduction, wireless sensor network

Junghoon Lee; Gyung-Leen Park; Ho-Young Kwak; Jikwang Han

2012-05-01T23:59:59.000Z

300

Nano-scale Sensor Networks for Chemical Eisa Zarepour1  

E-Print Network (OSTI)

Nano-scale Sensor Networks for Chemical Catalysis Eisa Zarepour1 Mahbub Hassan1 Chun Tung Chou1- searchers are now investigating the viability of nano-scale sensor networks (NSNs), which are formed natural gas to liquid fuel. Given that reliable wireless communi- cation at nano-scale is at very early

New South Wales, University of

Note: This page contains sample records for the topic "wireless sensor networks" 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

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

302

EECS: An Energy Efficient Clustering Scheme in Wireless Sensor , Chengfa Li1  

E-Print Network (OSTI)

' limited power, innovative techniques that im- prove energy efficiency to prolong the network lifetime lifetime greatly with a chain topology. But the delay is signif- icant although the energy is savedEECS: An Energy Efficient Clustering Scheme in Wireless Sensor Networks Mao Ye1 , Chengfa Li1

Wu, Jie

303

LBDP: localized boundary detection and parametrization for 3-D sensor networks  

Science Journals Connector (OSTI)

Many applications of wireless sensor networks involve monitoring a time-variant event (e.g., radiation pollution in the air). In such applications, fast boundary detection is a crucial function, as it allows us to track the event variation in a timely ... Keywords: 3-D wireless sensor networks, boundary detection, convexity test, inversion, localized algorithm, surface parametrization

Feng Li, Chi Zhang, Jun Luo, Shi-Qing Xin, Ying He

2014-04-01T23:59:59.000Z

304

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

305

Microsoft Word - Wireless Sensor Case Study final.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

3E 3E Wireless Sensor Network for Improving the Energy Efficiency of Data Centers Rod Mahdavi and William Tschudi Environmental Energy Technologies Division March 2012 Wireless S ensor N etwork f or I mproving t he E nergy E fficiency o f D ata C enters Page i Disclaimer This d ocument w as p repared a s a n a ccount o f w ork s ponsored b y t he U nited S tates G overnment. W hile t his document i s b elieved t o c ontain c orrect i nformation, n either t he U nited S tates G overnment n or a ny a gency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, a pparatus, p roduct, o r p rocess d isclosed, o r r epresents

306

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

307

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

308

Periodic Constraint-Based Control Using Dynamic Wireless Sensor Scheduling  

E-Print Network (OSTI)

Periodic Constraint-Based Control Using Dynamic Wireless Sensor Scheduling James Weimer, Jos¬īe Ara¬īujo, Aitor Hernandez and Karl Henrik Johansson Abstract-- Constraint-based control over wireless sensor net- works (WSNs) require control strategies that achieve a desired closed-loop system performance while

Johansson, Karl Henrik

309

Implementing and Evaluating a Wireless Body Sensor System for Automated Physiological Data Acquisition at Home  

E-Print Network (OSTI)

Advances in embedded devices and wireless sensor networks have resulted in new and inexpensive health care solutions. This paper describes the implementation and the evaluation of a wireless body sensor system that monitors human physiological data at home. Specifically, a waist-mounted triaxial accelerometer unit is used to record human movements. Sampled data are transmitted using an IEEE 802.15.4 wireless transceiver to a data logger unit. The wearable sensor unit is light, small, and consumes low energy, which allows for inexpensive and unobtrusive monitoring during normal daily activities at home. The acceleration measurement tests show that it is possible to classify different human motion through the acceleration reading. The 802.15.4 wireless signal quality is also tested in typical home scenarios. Measurement results show that even with interference from nearby IEEE 802.11 signals and microwave ovens, the data delivery performance is satisfactory and can be improved by selecting an appropriate channe...

Chen, Chao; 10.5121/ijcsit.2010.2303

2010-01-01T23:59:59.000Z

310

VigilNet: An Integrated Sensor Network System for Energy-Efficient Surveillance  

E-Print Network (OSTI)

.00 #12;Additional Key Words and Phrases: Sensor networks, Energy conservation, Tracking, Wireless 1VigilNet: An Integrated Sensor Network System for Energy-Efficient Surveillance Tian He, Sudha sensor networks, is of great practical importance for the military. Because of the energy constraints

He, Tian

311

Optimized Charger Deployment for Wireless Rechargeable Sensor Ji-Hau Liao () Wei-Ting So() Jehn-Ruey Jiang()  

E-Print Network (OSTI)

)(Radiant Energy) (Mechanical Energy) 2 [11] 2: [11] (Sola Power): (Photovoltaic Effect) - P-N (Ambient Sensor Network, WRSN)[2] (Energy Harvesting) (Radio Frequency, RF)(Converter) (DC) : I. (Intensive Energy Harvesting): (Wireless Charger) (Power Receiver) (Wireless Charging) [3] II. (Non-Intensive Energy

Jiang, Jehn-Ruey

312

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

313

Building Adaptable Sensor Networks with Sensor Cubes  

E-Print Network (OSTI)

of layers allows easy experiments, upgrades and extensions Small-scale sensor network Example sensor module- world network algorithm and power management behavior · Results from small scale tests can be compared (short packets and high bit rate reduce collision probability); Transmitter's MAC table logic: Small

Roussos, George

314

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.

315

Sensor networks represent new paradigm for reliable environment monitoring and infor-mation collection. They hold the promise of revolutionizing sensing in a wide range of  

E-Print Network (OSTI)

computing power, scarce memory and limited battery power. For wireless micro-sensor networks, physical of wireless micro-sensor networks communication models. 2. Development of a frame-work to evaluate protocolsAbstract Sensor networks represent new paradigm for reliable environment monitoring and infor

Heinzelman, Wendi

316

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

317

Energy Efficient Routing in Wireless Sensor Mehdi Kalantari and Mark Shayman  

E-Print Network (OSTI)

contract F496200210217. #12;2 the energy constraints by making a tree rooted in the central node. The tree1 Energy Efficient Routing in Wireless Sensor Networks Mehdi Kalantari and Mark Shayman Department of Electrical and Computer Engineering University of Maryland, College Park, MD 20742 {mehkalan, shayman

Shayman, Mark A.

318

HIERARCHICAL CENSORING FOR DISTRIBUTED DETECTION IN WIRELESS SENSOR Neal Patwari and Alfred O. Hero III  

E-Print Network (OSTI)

.1. Energy Constraint Energy is of primary concern in wireless sensor networks [4][5][6]. In most will require aggressive energy limitation. Equivalently, given a battery size, minimizing energy consumption maximizes system lifetime. If energy consumption can be sufficiently reduced, solar power or energy

Patwari, Neal

319

A MODIFIED BROADCAST STRATEGY FOR DISTRIBUTED SIGNAL ESTIMATION IN A WIRELESS SENSOR NETWORK WITH A TREE TOPOLOGY  

E-Print Network (OSTI)

WITH A TREE TOPOLOGY Joseph Szurley§ , Alexander Bertrand§ , Marc Moonen§ §KU Leuven-Dept. Electrical of the distributed adaptive node-specific estimation (DANSE) algorithm in a tree topology (T-DANSE). In this paper, we consider a network where there is at least one node with a large (vir- tually infinite) energy

320

Gas Main Sensor and Communications Network System  

SciTech Connect

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

Hagen Schempf

2006-05-31T23:59:59.000Z

Note: This page contains sample records for the topic "wireless sensor networks" 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

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

322

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

323

Performance Control in Wireless Sensor Networks C. J. Sreenan, U. Roedig, J. Brown, C. A. Boano, A. Dunkels, Z. He, T. Voigt, V. Vassiliou, J. Sa Silva  

E-Print Network (OSTI)

control centre to enable it to monitor and control all operations of the refinery. Currently, the vast scenarios within the GALP oil refinery where the system will be deployed and some initial technical insights, a refinery in Portugal, where performance is critical. Network with Deployed Sensor Controlled Performance

Roedig, Utz

324

Novel "Smart Cube" Wireless Sensors with Embedded Processing/Communication/Power Core for "Smart  

E-Print Network (OSTI)

and measurement data. II. BACKGROUND DATA A. RFID Sensors The two responsibilities of wireless sensorsNovel "Smart Cube" Wireless Sensors with Embedded Processing/Communication/Power Core for "Smart presents a novel topology of isotropically radiating "smart cubes" for use in wireless sensors. The novelty

Tentzeris, Manos

325

Controlled mobility in sensor networks  

E-Print Network (OSTI)

K. Gupta. Optimizing energy-latency trade- o? in sensoras ďOptimizing Energy-Latency Trade-o? in Sensor NetworksK. Gupta, ďOptimizing Energy-Latency Trade-o? in Sensor

Sugihara, Ryo

2009-01-01T23:59:59.000Z

326

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

327

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 wirelessÖ (more)

Lou, Chong

2015-01-01T23:59:59.000Z

328

Graphene Enhanced Wireless Sensors Taoran Le, Trang Thai, Vasileios Lakafosis,  

E-Print Network (OSTI)

Graphene Enhanced Wireless Sensors Taoran Le, Trang Thai, Vasileios Lakafosis, Manos Tentzeris utilizing both analog and digital principles. The sensors will utilize Graphene-based thin films integrated. Our thin films are produced from water-based, inkjet printed graphene oxide (GO) on paper

Tentzeris, Manos

329

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

330

Ultra-High Temperature Distributed Wireless Sensors  

SciTech Connect

Research was conducted towards the development of a passive wireless sensor for measurement of temperature in coal gasifiers and coal-fired boiler plants. Approaches investigated included metamaterial sensors based on guided mode resonance filters, and temperature-sensitive antennas that modulate the frequency of incident radio waves as they are re-radiated by the antenna. In the guided mode resonant filter metamaterial approach, temperature is encoded as changes in the sharpness of the filter response, which changes with temperature because the dielectric loss of the guided mode resonance filter is temperature-dependent. In the mechanically modulated antenna approach, the resonant frequency of a vibrating cantilever beam attached to the antenna changes with temperature. The vibration of the beam perturbs the electrical impedance of the antenna, so that incident radio waves are phase modulated at a frequency equal to the resonant frequency of the vibrating beam. Since the beam resonant frequency depends on temperature, a Doppler radar can be used to remotely measure the temperature of the antenna. Laboratory testing of the guided mode resonance filter failed to produce the spectral response predicted by simulations. It was concluded that the spectral response was dominated by spectral reflections of radio waves incident on the filter. Laboratory testing of the mechanically modulated antenna demonstrated that the device frequency shifted incident radio waves, and that the frequency of the re-radiated waves varied linearly with temperature. Radio wave propagation tests in the convection pass of a small research boiler plant identified a spectral window between 10 and 13 GHz for low loss propagation of radio waves in the interior of the boiler.

May, Russell; Rumpf, Raymond; Coggin, John; Davis, Williams; Yang, Taeyoung; O'Donnell, Alan; Bresnahan, Peter

2013-03-31T23:59:59.000Z

331

Tethys: A Distributed Algorithm for Intelligent Aggregation in Sensor Networks  

E-Print Network (OSTI)

energy than a naive, shortest-path tree due to the increased computation energy cost for performing.uiuc.edu, harris@dei.unipd.it, rhk@cs.uiuc.edu Abstract-- One key issue in wireless sensor networks is energy efficiency. Aggregation techniques attempt to minimize the energy expended in communication by processing

Kravets, Robin

332

DESIGN AND APPLICATIONS OF ZIGBEE-ENABLED WIRELESS SENSOR SYSTEMS FOR A SPACE RELEVANT ENVIRONMENT.  

E-Print Network (OSTI)

??A prototype wireless sensor system is developed to collect data from sensors that are of importance on space platforms, and also important in the testingÖ (more)

Weir, Erik

2010-01-01T23:59:59.000Z

333

An Asynchronous Event-Driven Data Transmitter for Wireless ECG Sensor Nodes  

E-Print Network (OSTI)

An Asynchronous Event-Driven Data Transmitter for Wireless ECG Sensor Nodes Andre L. Mansano for wireless ECG sensors node. Unlike current solutions for ECG monitoring with autonomous wireless sensors, we propose an asynchronous method to transmit data from an ECG front-end, which is designed with a 2-bit

Serdijn, Wouter A.

334

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

335

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

336

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

337

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

338

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

339

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

340

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

Note: This page contains sample records for the topic "wireless sensor networks" 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

Energy harvester for a wireless sensor in a boiler environment  

Science Journals Connector (OSTI)

Abstract Wireless sensors have become a focus of study in the field of measurement technologies. The power supply of many wireless sensors is based on batteries or external power sources. However, there is increasing interest in finding solutions where the batteries can be leaved away and the power for the wireless sensors is produced from the environment in which the sensors operate. The technologies required are called energy harvesting or scavenging technologies. This paper introduces the principles, modeling and a practical implementation of a self-powering solution for a wireless sensor for energy boilers or other hot reactor vessels. With the aid of energy solution introduced, the wireless sensor can operate autonomously without any batteries. One of the design targets in this work was that the top part of harvesterís mechanics must fit to the opening or assembly tube of diameter less than 15†mm in the boiler wall reserved for standard instrument assemblies. So the top of harvester collects and conducts thermal energy to element generating electricity from it. The harvester and further the measuring and communication electronics are mounted outside the hot area. The harvester solution introduced in the paper can produce about 114†mW power, when top of harvester mechanics was inserted to the test oven heated to temperature of +500†įC. The sensor function or type is not defined nor limited in this study. The electric energy generated by harvester can be used to power, for example, temperature, heat flux, flow, vibration or other little energy needing sensors.

Ilkka Korhonen; Raija Lankinen

2014-01-01T23:59:59.000Z

342

Air-dropped sensor network for real-time high-fidelity volcano monitoring  

Science Journals Connector (OSTI)

This paper presents the design and deployment experience of an air-dropped wireless sensor network for volcano hazard monitoring. The deployment of five stations into the rugged crater of Mount St. Helens only took one hour with a helicopter. The stations ... Keywords: design and deployment, sensor network

Wen-Zhan Song; Renjie Huang; Mingsen Xu; Andy Ma; Behrooz Shirazi; Richard LaHusen

2009-06-01T23:59:59.000Z

343

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

344

GAS MAIN SENSOR AND COMMUNICATIONS NETWORK SYSTEM  

SciTech Connect

Automatika, Inc. was contracted by the Department of Energy (DOE) and with co-funding from the New York Gas Group (NYGAS), to develop an in-pipe natural gas prototype measurement and wireless communications system for assessing and monitoring distribution networks. A prototype system was built for low-pressure cast-iron mains and tested in a spider- and serial-network configuration in a live network in Long Island with the support of Keyspan Energy, Inc. The prototype unit combined sensors capable of monitoring pressure, flow, humidity, temperature and vibration, which were sampled and combined in data-packages in an in-pipe master-slave architecture to collect data from a distributed spider-arrangement, and in a master-repeater-slave configuration in serial or ladder-network arrangements. It was found that the system was capable of performing all data-sampling and collection as expected, yielding interesting results as to flow-dynamics and vibration-detection. Wireless in-pipe communications were shown to be feasible and valuable data was collected in order to determine how to improve on range and data-quality in the future.

Hagen Schempf, Ph.D.

2003-02-27T23:59:59.000Z

345

Energy Conservation in Sensor and  

E-Print Network (OSTI)

Chapter 4 Energy Conservation in Sensor and Sensor-Actuator Networks Ivan Stojmenovic 4 wireless network, and must work unattended. The limited energy budget at the individual sensor level

Stojmenovic, Ivan

346

LOCALIZATION AND ENERGY MODELING IN WIRELESS SENSOR Ali Shareef  

E-Print Network (OSTI)

enters a low-power state can potentially result in very large power savings. #12;ACKNOWLEDGMENTS I would components of a sensor node, including processors with emerging energy-saving features, wireless energy-saving strategies in WSN. For example, it can be demonstrated that by carefully selecting

Zhu, Yifeng

347

AN ENERGY BENCHMARK FOR SOFTWARE UPDATES ON WIRELESS SENSOR NODES  

E-Print Network (OSTI)

AN ENERGY BENCHMARK FOR SOFTWARE UPDATES ON WIRELESS SENSOR NODES S. Brown*, C.J. Sreenan *Dept, Modelling, Energy, Benchmark. Abstract Energy consumption is arguably the key factor in the design not consume a significant fraction of a WSN's energy reserve; also, the required consumption must be known

Sreenan, Cormac J.

348

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

349

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

350

A wireless sensor system for validation of real-time automatic calibration of groundwater transport models q  

E-Print Network (OSTI)

Division of Environmental Sciences and Engineering, Colorado School of Mines, Golden, CO 80401, United Contaminant monitoring Data acquisition a b s t r a c t In this paper, we present the use of a wireless sensor network in a lab for subsurface contaminant plume monitoring with the objective of automatic calibration

Han, Qi "Chee"

351

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

352

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

353

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

354

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

355

Sensors, Controls, & Transactional Network Reports  

Energy.gov (U.S. Department of Energy (DOE))

Reports from the sensors, controls, and transactional network program. The transactional network is between appliances, buildings, and utilities, and can enable Smart Buildings -- buildings with technologies and control systems that can not only optimize energy performance and comfort, but also support energy-related transactions outside the building envelope.

356

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

357

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

358

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

359

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.

360

Dense, low-power sensor network for three-dimensional thermal characterization of large-scale atria spaces  

E-Print Network (OSTI)

We describe the design and implementation of a dense, low-power wireless sensor network for fine-grained three-dimensional thermal characterization of a large open indoor space. To better understand the airflow dynamics ...

Gong, Nan-Wei

Note: This page contains sample records for the topic "wireless sensor networks" 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

Network Embedded Systems Sensor Networks  

E-Print Network (OSTI)

Link Network Transport Application SPIN BroadcastStorm TinyOS0.6 WooMAC GAF S-MAC AlohaPS PSFQ GDI CODA

Amir, Yair

362

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.

363

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

364

Enabling Long-Lived Sensor Networks Through Solar Energy Harvesting  

E-Print Network (OSTI)

Long - Lived Sensor Networks through Solar Energy Harvestingsolar energy harvesting and storage device for sensor

Jason Hsu; Sadaf Zahedi; Jonathan Friedman; Aman Kansal; Vijay Raghunathan; Mani Srivastava

2005-01-01T23:59:59.000Z

365

On the robustness of clustered sensor networks  

E-Print Network (OSTI)

or fault tolerance capability of a sensor system. The redundancy degree of sensors plays two important roles pertaining to the robustness of a sensor network. First, the redundancy degree provides proper parameter values for robust estimator; second, we can...

Cho, Jung Jin

2009-05-15T23:59:59.000Z

366

Wireless sensor for detecting explosive material  

SciTech Connect

Disclosed is a sensor for detecting explosive devices. The sensor includes a ferromagnetic metal and a molecular recognition reagent coupled to the ferromagnetic metal. The molecular recognition reagent is operable to expand upon absorption of vapor from an explosive material such that the molecular recognition reagent changes a tensile stress upon the ferromagnetic metal. The explosive device is detected based on changes in the magnetic switching characteristics of the ferromagnetic metal caused by the tensile stress.

Lamberti, Vincent E; Howell, Jr., Layton N; Mee, David K; Sepaniak, Michael J

2014-10-28T23:59:59.000Z

367

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

368

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 andÖ (more)

Zazo Ruiz, Javier

369

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 andÖ (more)

Zazo Ruiz, Javier

2012-01-01T23:59:59.000Z

370

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

371

A wireless 802.11 condition monitoring sensor for electrical substation environments.  

E-Print Network (OSTI)

??The work reported in this thesis is concerned with the design, development and testing of a wireless 802.11 condition monitoring sensor for an electrical substationÖ (more)

Bogias, Alexander

2012-01-01T23:59:59.000Z

372

GAS MAIN SENSOR AND COMMUNICATIONS NETWORK SYSTEM  

SciTech Connect

Automatika, Inc. was contracted by the Department of Energy (DOE) and with co-funding from the New York Gas Group (NYGAS), to develop an in-pipe natural gas prototype measurement and wireless communications system for assessing and monitoring distribution networks. In Phase II of this three-phase program, an improved prototype system was built for low-pressure cast-iron and high-pressure steel (including a no-blow installation system) mains and tested in a serial-network configuration in a live network in Long Island with the support of Keyspan Energy, Inc. The experiment was carried out in several open-hole excavations over a multi-day period. The prototype units (3 total) combined sensors capable of monitoring pressure, flow, humidity, temperature and vibration, which were sampled and combined in data-packages in an in-pipe master-repeater-slave configuration in serial or ladder-network arrangements. It was verified that the system was capable of performing all data-sampling, data-storage and collection as expected, yielding interesting results as to flow-dynamics and vibration-detection. Wireless in-pipe communications were shown to be feasible and the system was demonstrated to run off in-ground battery- and above-ground solar power. The remote datalogger access and storage-card features were demonstrated and used to log and post-process system data. Real-time data-display on an updated Phase-I GUI was used for in-field demonstration and troubleshooting.

Hagen Schempf

2004-09-30T23:59:59.000Z

373

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

374

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

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

CROSS-LAYER OPTIMIZATION WITH POWER CONTROL IN DS-CDMA VISUAL SENSOR NETWORKS  

E-Print Network (OSTI)

There has been a rapidly increasing demand for real-time video transmission over wireless networks. Sensor con- straints required for video transmission. These networks are com- prised of typically low in order to request changes in transmission parameters, such as source coding rate, channel coding rate

Kondis, Lisimachos Paul

377

Energy management in sensor networks  

Science Journals Connector (OSTI)

...sensor networks are based on solar cells, such as Heliomote...design a highly efficient solar-based harvesting system, these solar-based designs need to employ...achieves a maximum value. (b) Energy storage According to the type of...

2012-01-01T23:59:59.000Z

378

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

379

A study of low level vibrations as a power source for wireless sensor nodes  

Science Journals Connector (OSTI)

Advances in low power VLSI design, along with the potentially low duty cycle of wireless sensor nodes open up the possibility of powering small wireless computing devices from scavenged ambient power. A broad review of potential power scavenging technologies ... Keywords: Energy scavenging, Self powered wireless sensing, Vibration to electricity conversion

Shad Roundy; Paul K. Wright; Jan Rabaey

2003-07-01T23:59:59.000Z

380

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

Note: This page contains sample records for the topic "wireless sensor networks" 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.


381

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 OkajimaÖ

2002-01-01T23:59:59.000Z

382

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

383

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

384

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

385

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

386

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

387

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.

388

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

389

Inkjet-Printed Graphene-Based Wireless Gas Sensor Modules , Vasileios Lakafosis1  

E-Print Network (OSTI)

Inkjet-Printed Graphene-Based Wireless Gas Sensor Modules Taoran Le1 , Vasileios Lakafosis1 , Ziyin we demonstrate the use of graphene as the basis for design and development of low-cost, self-powered, battery-less, wireless sensor solutions utilizing thin films produced from environmentally friendly, water

Tentzeris, Manos

390

IMPLEMENTATION OF AN AUTOMATED ECG-BASED DIAGNOSIS ALGORITHM FOR A WIRELESS BODY SENSOR PLATFORM  

E-Print Network (OSTI)

IMPLEMENTATION OF AN AUTOMATED ECG-BASED DIAGNOSIS ALGORITHM FOR A WIRELESS BODY SENSOR PLATFORM the design and optimization of an automated real-time electrocardiogram (ECG) signal analysis and cardiovascular arrhythmia diagnosis application for a prototype sensor node called Wireless 25 EEG/ECG sys- tem

De Micheli, Giovanni

391

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

E-Print Network (OSTI)

on and off the impedance connected to the antenna port. Thus, energy consumption at each sensor is required just to control a switch transistor, while energy-demanding communication functions (e.g. signal power

392

Problem Description:Problem Description: How can Researchers Monitor Ecosystems via Embedded Sensors?How can Researchers Monitor Ecosystems via Embedded Sensors? Proposed Solution:Proposed Solution: Wireless Sensors to Monitor and Record Biodiversity and  

E-Print Network (OSTI)

Sensors?How can Researchers Monitor Ecosystems via Embedded Sensors? Proposed Solution:Proposed Solution: Wireless Sensors to Monitor and Record Biodiversity and Ecological ChangesWireless Sensors to Monitor.jamesreserve.edu Introduction:Introduction: Embedded Sensors, a Model for Monitoring Wildlife in Their Habitat.Embedded Sensors

Hamilton, Michael P.

393

SIA: Secure information aggregation in sensor networks  

Science Journals Connector (OSTI)

In sensor networks, data aggregation is a vital primitive enabling efficient data queries. An on-site aggregator device collects data from sensor nodes and produces a condensed summary which is forwarded to the off-site querier, thus reducing the communication ... Keywords: Sensor networks, approximate interactive proofs, information aggregation, security

Haowen Chan; Adrian Perrig; Bartosz Przydatek; Dawn Song

2007-01-01T23:59:59.000Z

394

CPS Principal Inves0gator's Mee0ng -Washington D.C. -August 1-2, 2011 Wireless Sensor Actuator Networks  

E-Print Network (OSTI)

#12;CPS Principal Inves0gator's Mee0ng - Washington D.C. - August 1-2, 2011 and collection networks · Traffic networks #12;CPS Principal Inves0gator's Mee0ng - Washington D in hardware ­ Technology transfer #12;CPS Principal Inves0gator's Mee0ng - Washington D

Lemmon, Michael

395

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

396

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

397

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

398

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

399

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.

400

Energy efficient node addressing scheme in self-organised sensor networks  

Science Journals Connector (OSTI)

Sensor networks are envisioned to support autonomous and spontaneous networking for a wide range of applications such as environment monitoring. Due to energy constraints, it is difficult for wireless sensor nodes to handle heavy protocol stacks with a large protocol overhead. In this paper, we present a novel address auto configuration scheme, which we call SMallest-size sensor AddRess auToconfiguration scheme (SMART), to configure potential shortest-size local unique addresses for sensor networks with energy efficiency. SMART achieves energy efficiency in three ways. First, it automatically configures node address within a potential smallest address space for a number of sensor nodes, in order to achieve the small address size. Second, it avoids address conflicts during the address configuration. Third, it configures addresses with a small configuration overhead and achieves load balance among sensor nodes.

Rui Teng

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless sensor networks" 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

Mercury: A Wearable Sensor Network Platform for High-fidelity Motion Analysis  

E-Print Network (OSTI)

Mercury: A Wearable Sensor Network Platform for High-fidelity Motion Analysis Konrad Lorincz, Bor This paper describes Mercury, a wearable, wireless sen- sor platform for motion analysis of patients being to previous systems intended for short-term use in a laboratory, Mercury is designed to sup- port long

Chen, Yiling

402

Modeling and Generation of Space-Time Correlated Signals for Sensor Network Fields  

E-Print Network (OSTI)

and recovery in Wireless Sensor Networks (WSNs) have utilized the spatio-temporal statistics of real world signals in order to achieve good performance in terms of energy savings and improved signal reconstruction address this gap by devising a mathematical model for real world signals that are correlated in space

Rossi, Michele

403

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

404

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

405

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

406

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

407

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

408

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

409

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

410

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

411

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.

412

Oak Ridge National Laboratory - Wireless Networking  

NLE Websites -- All DOE Office Websites (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

413

Modeling Spatially Correlated Data in Sensor Networks  

E-Print Network (OSTI)

Modeling Spatially Correlated Data in Sensor Networks APOORVA JINDAL and KONSTANTINOS PSOUNIS of spatially correlated sensor network data. The proposed model is Markovian in nature and can capture on the degree of spatial correlation in data, under real and synthetic traces. The real traces are obtained from

414

Sensor Network Lifetime Maximization Via Sensor Energy Balancing: Construction and Optimal Scheduling of Sensor Trees  

E-Print Network (OSTI)

in such a way that the total energy usage of the active sensor nodes in the tree is minimized. However whenSensor Network Lifetime Maximization Via Sensor Energy Balancing: Construction and Optimal Scheduling of Sensor Trees Ling Shi , Agostino Capponi , Karl H. Johansson and Richard M. Murray Abstract

Johansson, Karl Henrik

415

Maximizing Lifetime in an Energy Constrained Wireless Sensor Array Using Team Optimization  

E-Print Network (OSTI)

Maximizing Lifetime in an Energy Constrained Wireless Sensor Array Using Team Optimization or using intermediate hop nodes. For a given node constellation, there ex- ist many wireless connection trees to do this. For a known node constellation, the maximum lifetime of a single tree is equal

Arabshahi, Payman

416

A Novel Wireless Passive Temperature Sensor Utilizing Microfluidic Principles in Millimeter-Wave  

E-Print Network (OSTI)

A Novel Wireless Passive Temperature Sensor Utilizing Microfluidic Principles in Millimeter. INTRODUCTION A new miniaturized passive and wireless sensing tag is presented, which is based on microfluidic. Preliminary guidelines for a novel generation of wearable, implantable and conformal "smart house"/"smart skin

Tentzeris, Manos

417

Sensemble : a wireless inertial sensor system for the interactive dance and collective motion analysis  

E-Print Network (OSTI)

The motivation for this project is the recent opportunity to leverage low-power, high-bandwidth RF devices and compact inertial sensors to create a wearable, wireless, motion analysis system meeting the demands of many ...

Aylward, Ryan P

2006-01-01T23:59:59.000Z

418

A wireless sensor-based mobile music environment complied from a graphical language  

E-Print Network (OSTI)

In this thesis I demonstrate a framework for a wireless sensor-based mobile music environment. Most prior work has not been truly portable. Those that were have focused on external data as opposed to properties of the ...

Jacobs, Robert N. (Robert Nathan)

2007-01-01T23:59:59.000Z

419

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

420

E-Print Network 3.0 - adaptive peer-to-peer overlay Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

protocol in peer-to-peer networks... in wireless mesh networks, data management in both micro and macro sensor networks, ... Source: Shenoy, Prashant - Department of Computer...

Note: This page contains sample records for the topic "wireless sensor networks" 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

Collaborative storage management in sensor networks  

Science Journals Connector (OSTI)

In this paper, we consider a class of sensor networks where the data is not required in real-time by an observer; for example: a sensor network monitoring a scientific phenomenon for later play back and analysis. In such networks, the data must be stored in the network. Thus, in addition to battery power, storage is a primary resource; the useful lifetime of the network is constrained by its ability to store the generated data samples. We explore the use of collaborative storage techniques to efficiently manage data in storage constrained sensor networks. The proposed collaborative storage technique takes advantage of spatial correlation among the data collected by nearby sensors to significantly reduce the size of the data near the data sources. In addition, local coordination can be used to adjust the sampling rate to match the required application fidelity. We show that the proposed approach provides significant savings in the size of the stored data vs. local buffering. These savings allow the network to operate for a longer time without exhausting storage space. Furthermore, the savings reduce the amount of data that will eventually be relayed in response to queries or upon eventual collection of the data. In addition, collaborative storage performs load balancing of the available storage space if data generation rates are not uniform across sensors (as would be the case in an event driven sensor network), or if the available storage varies across the network.

Sameer Tilak; Nael B. Abu-Ghazaleh; Wendi Heinzelman

2005-01-01T23:59:59.000Z

422

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

423

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.

424

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

425

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

E-Print Network (OSTI)

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

Boucherie, Richard J.

426

IEEE TRANSACTIONS ON MOBILE COMPUTING, TMC-0278-1006.R1 1 Efficient Placement and Dispatch of Sensors  

E-Print Network (OSTI)

of Sensors in a Wireless Sensor Network You-Chiun Wang, Chun-Chi Hu, and Yu-Chee Tseng, Senior Member, IEEE Abstract-- Sensor deployment is a critical issue because it affects the cost and detection capability of a wireless sensor network. In this work, we consider two related deployment problems: sensor placement

Tseng, Yu-Chee

427

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

SciTech Connect

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

428

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

429

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

430

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

431

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¬īan 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

432

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

433

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

434

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 Riihijšrvi; Petri MšhŲnen

2012-07-01T23:59:59.000Z

435

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

436

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

437

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

438

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.

439

Robust Clock Synchronization in Wireless Sensor Networks  

E-Print Network (OSTI)

, and ? represents the clock offset between node A and node B. kX and kY denote the variable portions of delay. 9 The equation (2.1) can also be rewritten as ,, k k k k U d X V d Y ? ? ? ? ? ? ? ? (2.2) where the time differences kU and kV... corresponding to the thk uplink and downlink message exchange, are defined as , ,k k kU T T?? 2 1 and 4, 3,k k kV T T?? respectively. 2.2 Maximum Likelihood Clock Offset Estimation Delay measurements in equation (2.2) produce a MLE of the clock offset...

Saibua, Sawin

2010-10-12T23:59:59.000Z

440

Energy Management in Wireless Sensor Network Operations  

E-Print Network (OSTI)

sense to replace a node with a new node with a higher amount of energy. If node-i is replaced on day-t, let wti be the additional amount of energy in the incoming new node over the outgoing node (i.e. the energy stored in the new node is eti + w t i... + w t i D X j2Vi ETij r t ij + E R X j2Ui rtji ! ; i = 1; : : : ; N; t = 1; : : : ; T (5) eti + w t i E0; i = 1; : : : ; N; t = 1; : : : ; T (6) wti E0 yti ; i = 1; : : : ; N; t = 1; : : : ; T (7) yti xt; i = 1; : : : ; N...

Mohapatra, Arupa Kumar

2013-07-26T23:59:59.000Z

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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

Ferry-Based Linear Wireless Sensor Networks  

E-Print Network (OSTI)

Applications of WSNsApplications of WSNs Applications for WSNs: · Weather monitoring · Security and tactical pipelines. Desalinated water. Saudi Arabia: 3,800 Km. Oil, Gas, and Water Pipeline UseOil, Gas, and Water

Wu, Jie

442

Wireless Sensor Networks for Data Centers  

Energy.gov (U.S. Department of Energy (DOE))

Data centers consume roughly 2% of all energy used in the United States, and their carbon footprint is projected to exceed that of the airline industry by 2020. Nearly 50% of data center energy typically goes to non-Information Technology (IT) loads, such as cooling, fans, humidification, and lighting. In the Federal sector, agencies currently lease space from the U.S. General Services Administration (GSA) to operate more than 1,400 data centers. Improving the energy performance of data centers supports progress toward meeting federally mandated greenhouse gas emission-reduction goals, while reducing operating costs and energy use, and allowing greater flexibility in future expansion by eliminating the need to provide additional power and cooling

443

Distributed Spatial Analysis in Wireless Sensor Networks  

E-Print Network (OSTI)

is essential for energy efficiency. In this context, the main contributions of this paper to the literature phenomena (e.g., areas of mist over a cultivated field). The paper then describes distributed.g., whether the mist is adjacent, or inside, or outside a cultivated field) in the specific case where

Fernandes, Alvaro A. A.

444

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 11, NO. 4, AUGUST 2002 337 Wireless Micromachined Ceramic Pressure Sensor  

E-Print Network (OSTI)

sensor that uses a wireless telemetry scheme has been developed. The passive nature of the telemetry, the measurement of the air-pressure as it reaches the combustor helps to control the air/fuel mixture to reduce the risk of stall. This requires a sensor that operates in a turbulent gas environment at elevated

445

Are we there yet?: feasibility of continuous stress assessment via wireless physiological sensors  

Science Journals Connector (OSTI)

Stress can lead to headaches and fatigue, precipitate addictive behaviors (e.g., smoking, alcohol and drug use), and lead to cardiovascular diseases and cancer. Continuous assessment of stress from sensors can be used for timely delivery of a variety ... Keywords: mobile health, stress, wireless physiological sensor

Md. Mahbubur Rahman, Rummana Bari, Amin Ahsan Ali, Moushumi Sharmin, Andrew Raij, Karen Hovsepian, Syed Monowar Hossain, Emre Ertin, Ashley Kennedy, David H. Epstein, Kenzie L. Preston, Michelle Jobes, J. Gayle Beck, Satish Kedia, Kenneth D. Ward, Mustafa al'Absi, Santosh Kumar

2014-09-01T23:59:59.000Z

446

Energy-Neutral Source-Channel Coding in Energy-Harvesting Wireless Sensors  

E-Print Network (OSTI)

states of the measurement quality, of channel SNR, and of the data queue, the energy management unit must is referred to as energy neutral [4]. Moreover, when sensors are tasked with acquiring complex measures1 Energy-Neutral Source-Channel Coding in Energy-Harvesting Wireless Sensors P. Castiglione, O

Zemen, Thomas

447

Configurable dynamic privacy for pervasive sensor networks  

E-Print Network (OSTI)

Ubiquitous computing sensor networks have greatly augmented the functionality of interactive media systems by adding the ability to capture and store activity-related information. Analyzing the information recorded from ...

Gong, Nan-Wei

2009-01-01T23:59:59.000Z

448

A flexible high-density sensor network  

E-Print Network (OSTI)

This thesis explores building and deploying a scalable electronic sensate skin that was designed as a dense sensor network. Our skin is built from small (1" x 1") rigid circuit boards attached to their neighbors with ...

Mistree, Behram Farrokh Thomas

2008-01-01T23:59:59.000Z

449

Underwater sensor networks: applications, advances and challenges  

Science Journals Connector (OSTI)

...to counting or imaging animal life (micro-organisms, fish or mammals). Industrial applications monitor and control commercial...topology control mechanism. The sensor networks for undersea seismic experimentation (SNUSE) modem implements such a low-power...

2012-01-01T23:59:59.000Z

450

A Survey on Sensor Networks from a Multiagent Perspective  

Science Journals Connector (OSTI)

......Special Focus on Agent Technologies for Sensor Networks...systems and networks: Technologies, applications, implications...impacts. http://intranet.daiict. ac.in...R. (2009) Agent technologies for sensor networks......

Meritxell Vinyals; Juan A. Rodriguez-Aguilar; Jesus Cerquides

2011-03-01T23:59:59.000Z

451

Recommended Practices Guide For Securing ZigBee Wireless Networks in  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

452

Cognitive Radio Networks as Sensor Networks  

E-Print Network (OSTI)

is used, assuming the cognitive radios know their ownfor Embedded Networked Sensing Cognitive Radio Networks AsJ. Pottie Introduction: Cognitive Radio (CR) Networks The

Bandari, Dorna; Yang, Seung R.; Zhao, Yue; Pottie, Gregory

2007-01-01T23:59:59.000Z

453

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

454

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

455

Query Processing in Mobile Sensor Networks Wang-Chien Lee  

E-Print Network (OSTI)

, a sensor network for air pollution test, where all sensors are scattered in the air and transported to collect the data from the sensors about air pollution and traffic conditions. In comparison, vehicles, animals, air, and water). With self-propelling sensor nodes, a mobile sensor network is self

Giles, C. Lee

456

Development of Advanced Massive Heterogeneous Sensor Networks  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Massive Heterogeneous Sensor Networks Research Team * Doug McCorkle * Kris Bryden * Mark Bryden Ames Laboratory U of Maryland * Ashwani Gupta * Miao Yu Power Plant Challenges * Conflicting goals of reliable low cost energy and climate change mitigation * Large investment in current infrastructure * Little implementation of information technologies Sensors ... * will be "free" * will be small (lick 'n stick) * will be smart * will be ubiquitous Low cost improvements in sensing for control and condition monitoring can result in big improvements in cost and carbon emissions * "... develop the understandings, algorithms, and control strategies needed to utilize large-scale, high- density sensor networks in advanced power plants." * Develop techniques for the

457

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

458

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

459

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

460

A mutual authentication and key establishment scheme for heterogeneous sensor networks supporting nodes mobility  

Science Journals Connector (OSTI)

In the last two decades, wireless sensor networks (WSNs) have greatly attracted the attention of the research community because their flexibility, adaptability and self-organising properties make them a technology solution suitable for diverse application scenarios ranging from home and industrial automation to military surveillance. Since these networks consist of resource constrained devices and can be deployed in remote and unattended areas, supporting security could represent a challenging task especially if mobility scenarios are taken into consideration. In this context, key management facilitates the adoption of cryptography techniques to support secure data communication and to protect the resource constrained devices from various security attacks. This paper specifically focuses on mobile heterogeneous wireless sensor networks consisting of mobile sensor nodes with few fixed sensor nodes and presents a mutual authentication and key management scheme suitable for the considered scenario. Analytical and OMNET++ simulation results show that the proposed scheme provides better network connectivity, consumes less memory, has better network resilience against attacks and introduces lower communication overhead compared to state-of-the-art solutions.

Sarmad Ullah Khan; Claudio Pastrone; Luciano Lavagno; Maurizio A. Spirito

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wireless sensor networks" 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

Power spectral density estimation for wireless fluctuation enhanced gas sensor nodes  

E-Print Network (OSTI)

Fluctuation enhanced sensing (FES) is a promising method to improve the selectivity and sensitivity of semiconductor and nanotechnology gas sensors. Most measurement setups include high cost signal conditioning and data acquisition units as well as intensive data processing. However, there are attempts to reduce the cost and energy consumption of the hardware and to find efficient processing methods for low cost wireless solutions. In our paper we propose highly efficient signal processing methods to analyze the power spectral density of fluctuations. These support the development of ultra-low-power intelligent fluctuation enhanced wireless sensor nodes while several further applications are also possible.

Mingesz, Robert; Gingl, Zoltan

2014-01-01T23:59:59.000Z

462

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

463

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

464

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

465

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

466

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

467

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

468

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

469

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

470

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

471

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

472

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

E-Print Network (OSTI)

AbstractóLink 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 TermsóLow-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

473

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

474

A link availability-based QoS-aware routing protocol for mobile ad hoc sensor networks  

Science Journals Connector (OSTI)

With more and more wireless devices being mobile, there is a constant challenge to provide reliable and high quality communication services among these devices. In this paper, we propose a link availability-based QoS-aware (LABQ) routing protocol for ... Keywords: Ad hoc network, Mobility, QoS, Routing, Sensor

Ming Yu; Aniket Malvankar; Wei Su; Simon Y. Foo

2007-12-01T23:59:59.000Z

475

Powering a wireless temperature sensor using sediment microbial fuel cells with vertical arrangement of electrodes  

Science Journals Connector (OSTI)

The application of wireless sensors is an important approach for monitoring natural water systems in remote locations; however, limited power sources are a key challenge for successful application of these sensors. Sediment microbial fuel cells (SMFCs) have shown potential as a sustainable power source with low maintenance requirements to power wireless sensors. This study examines electricity generation in lab-scale \\{SMFCs\\} with the sediment from Lake Michigan. Two \\{SMFCs\\} are operated in parallel with a difference in cathode arrangement (floating cathode vs. bottom cathode). The data show that the SMFC with a floating cathode produces more electricity and results in a shorter charging time when an ultracapacitor is connected to the circuit. To control electricity delivery and voltage elevation to a value that can drive a wireless temperature sensor, a power management system (PMS) is developed. With the PMS, both \\{SMFCs\\} can consistently power the wireless temperature sensor for data transmission to a computer, although the number of recorded data within the same period differs. This research provides an effective PMS for power control and valuable experience in SMFC configurations for the next onsite test of the developed \\{SMFCs\\} in Lake Michigan.

Fei Zhang; Lei Tian; Zhen He

2011-01-01T23:59:59.000Z

476

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

477

Cooperative UAV-Based Communications Backbone for Sensor Networks  

SciTech Connect

The objective of this project is to investigate the use of unmanned air vehicles (UAVs) as mobile, adaptive communications backbones for ground-based sensor networks. In this type of network, the UAVs provide communication connectivity to sensors that cannot communicate with each other because of terrain, distance, or other geographical constraints. In these situations, UAVs provide a vertical communication path for the sensors, thereby mitigating geographic obstacles often imposed on networks. With the proper use of UAVs, connectivity to a widely disbursed sensor network in rugged terrain is readily achieved. Our investigation has focused on networks where multiple cooperating UAVs are used to form a network backbone. The advantage of using multiple UAVs to form the network backbone is parallelization of sensor connectivity. Many widely spaced or isolated sensors can be connected to the network at once using this approach. In these networks, the UAVs logically partition the sensor network into sub-networks (subnets), with one UAV assigned per subnet. Partitioning the network into subnets allows the UAVs to service sensors in parallel thereby decreasing the sensor-to-network connectivity. A UAV services sensors in its subnet by flying a route (path) through the subnet, uplinking data collected by the sensors, and forwarding the data to a ground station. An additional advantage of using multiple UAVs in the network is that they provide redundancy in the communications backbone, so that the failure of a single UAV does not necessarily imply the loss of the network.

Roberts, R S

2001-10-07T23:59:59.000Z

478

Microsoft PowerPoint - Wireless, Passive Ceramic Strain Sensors_An [Compatibility Mode]  

NLE Websites -- All DOE Office Websites (Extended Search)

June 13, 2013 June 13, 2013 Wireless, Passive Ceramic Strain Sensors for Turbine Engine Applications Gang Shao and Linan An Advanced Materials Processing and Analysis Center (AMPAC) Department of Materials Science and Engineering (MSE) University of Central Florida Orlando, FL 32816 2 Outline ÔĀģ Motivation ÔĀģ Strain Sensors - State of the Art ÔĀģ Objectives ÔĀģ Schedule and timelines ÔĀģ Accomplishment ÔĀģ Future Work ÔĀģ Summary 3 Motivation - applications of turbines ÔĀģ Turbine engines - key for energy generation and propulsion 2007 Energy Generation Statistics (DOE) ~50% Major power generation techniques need turbine engines 4 Motivation - need for wireless strain sensors ÔĀģ Many parts in turbine engines subjected to severe strain/stress in extreme environments ÔĀģ Strain sensors

479

Adaptive coherent interferometric imaging for sensor networks Gregoire Derveauxa)  

E-Print Network (OSTI)

with distributed sensor networks is presented. The sensors record the impulse response of the unknown background imaging when the background is known is considered in Ref.8. The sensors record an approximate impulseAdaptive coherent interferometric imaging for sensor networks Gr¬īegoire Derveauxa) INRIA Domaine de

Papanicolaou, George C.

480

E-Print Network 3.0 - advanced telemedicine development Sample...  

NLE Websites -- All DOE Office Websites (Extended Search)

b ** Summary: Networks, Telemedicine, CAC, QoS, Data Query 1. INTRODUCTION Advances in micro-electro-mechanical systems... QoS Considerations in Wireless Sensor Networks for...

Note: This page contains sample records for the topic "wireless sensor networks" 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 - actuated impact device Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

impact of reducing communication costs by using... Modeling wireless sensor and actuator networks using frame theory Christopher J. Rozell and Don H... an actuator network, it is...

482

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

483

Load Adaptive and Fault Tolerant Framework for Energy Saving in FiberĖWireless Access Networks  

Science Journals Connector (OSTI)

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

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

2013-01-01T23:59:59.000Z

484

A Wireless Sensor-Based Driving Assistant for Automobiles Fred Yu, Bozena Kaminska, and Pawel Gburzynski  

E-Print Network (OSTI)

A Wireless Sensor-Based Driving Assistant for Automobiles Fred Yu, Bozena Kaminska, and Pawel alone, approximately six million automobile accidents take place. In total, those accidents result 230 billion US dollars [1]. A large fraction of all automobile accidents is caused by the drivers

Gburzynski, Pawel

485

Sensors and Actuators B 102 (2004) 2734 A miniaturized low-power wireless remote environmental  

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-site monitoring of water pollution by heavy-metal ions. The system is composed of three parts: an electrochemical wireless remote environmental monitoring sys- tem. This system monitors water pollution of heavy-metal ions sensor module using microfabricated electrodes for detecting heavy-metal contamination in sample water

Kwak, Juhyoun

486

CHIPLESS PASSIVE SENSOR FOR WIRELESS MONITORING OF HIGH RADIATION DOSES IN NUCLEAR INFRASTRUCTURES  

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CHIPLESS PASSIVE SENSOR FOR WIRELESS MONITORING OF HIGH RADIATION DOSES IN NUCLEAR INFRASTRUCTURES for Nuclear Research, Otwock, Poland 4 Wroclaw University of Technology, Wroclaw, Poland 5 TRAD, BP 47471, Labège, France ppons@laas.fr ABSTRACT The dosimetry is one of the crucial techniques that are needed

Paris-Sud XI, Université de

487

RF-Powered Variable Duty Cycle Wireless Sensor Daniel Costinett, Erez Falkenstein, Regan Zane, Zoya Popovic  

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is monitored, and the duty cycle for wireless data transmission adaptively adjusted through use of a low-power with optimizing the interface between the power reception device, and typical low-power sensor loads to achieve presents an optimal DC load to the energy storage device, which provides power to the microcontroller

Popovic, Zoya

488

A Novel Graphene-Based Inkjet-Printed WISP-Enabled Wireless Gas Sensor  

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A Novel Graphene-Based Inkjet-Printed WISP- Enabled Wireless Gas Sensor Taoran Le, Vasileios thin films produced from environmentally friendly, water-based, inkjet printed graphene oxide (GO) ink is achieved using the graphene thin films, with over 30% of material recovery observed within 5 minutes

Tentzeris, Manos

489

NodeMD: Diagnosing Node-Level Faults in Remote Wireless Sensor Systems  

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, Richard Han Department of Computer Science University of Colorado at Boulder krunic@ieee.org, Eric.Trumpler@colorado.edu, Richard.Han@colorado.edu ABSTRACT Software failures in wireless sensor systems are notoriously diffi- cult Island off the coast of Maine [2], around wildfires in the Bitterroot National Forest in Idaho [3

Han, Richard Y.

490

MINIMIZATION OF SENSOR USAGE FOR TARGET TRACKING IN A NETWORK OF IRREGULARLY SPACED SENSORS  

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MINIMIZATION OF SENSOR USAGE FOR TARGET TRACKING IN A NETWORK OF IRREGULARLY SPACED SENSORS Thomas address the following scenario: a single target moves through a field of stationary sensors with known locations. At each time epoch, each sensor is either active or not; each active sensor outputs either target

Morrell, Darryl

491

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

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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"

492

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

493

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

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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

494

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

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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

495

Explicit Sensor Network Localization using Semidefinite ...  

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Key Words: Sensor Network Localization, Euclidean Distance Matrix ... Cliques in the graph of the SNL problem give rise to this degeneracy in the ..... cone (S) denote the convex cone generated by the set S. We use the Matlab notation 1 : n =.

2010-01-29T23:59:59.000Z

496

Geometric algorithms for sensor networks  

Science Journals Connector (OSTI)

...the communication cost and energy consumption by avoiding network-wide...network is a two-dimensional grid. The information storage curves...and X. Lin2001Loop-free hybrid single-path/flooding routing...D. Joseph2001Tapestry: an infrastructure for fault-tolerant wide-area...

2012-01-01T23:59:59.000Z

497

Secure Aggregation for Wireless Networks Lingxuan Hu David Evans  

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. 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

498

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

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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

499

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

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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

500

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

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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