Sample records for wireless sensor networks

  1. a Wireless Sensor Network for Environmental Monitoring

    E-Print Network [OSTI]

    Gburzynski, Pawel

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

  2. Monitoring Energy Consumption In Wireless Sensor Networks

    E-Print Network [OSTI]

    Turau, Volker

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

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

    E-Print Network [OSTI]

    California at Berkeley, University of

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

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

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

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

  5. Power Sources for Wireless Sensor Abstract. Wireless sensor networks are poised to become a very significant

    E-Print Network [OSTI]

    Frechette, Luc G.

    Power Sources for Wireless Sensor Networks Abstract. Wireless sensor networks are poised to become a very significant enabling technology in many sectors. Already a few very low power wireless sensor environment, alternative power sources must be employed. This paper reviews many potential power sources

  6. Implementing a wireless base station for a sensor network

    E-Print Network [OSTI]

    Song, Heewon, 1977-

    2004-01-01T23:59:59.000Z

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

  7. Software Update Recovery for Wireless Sensor Networks

    E-Print Network [OSTI]

    Sreenan, Cormac J.

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

  8. Radioactive Target Detection Using Wireless Sensor Network

    E-Print Network [OSTI]

    Zhang, Tonglin

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

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

    E-Print Network [OSTI]

    Elleithy, Abdelrahman

    2012-01-01T23:59:59.000Z

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

  10. Security Schemes for Wireless Sensor Networks with Mobile Sink

    E-Print Network [OSTI]

    Rasheed, Amar Adnan

    2011-08-08T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Turau, Volker

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

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

    E-Print Network [OSTI]

    Heys, Howard

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

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

    E-Print Network [OSTI]

    Huang, Yan

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

  14. Mobility in Wireless Sensor Networks

    E-Print Network [OSTI]

    Mehta, Ankur Mukesh

    2012-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Hempstead, Mark

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

  16. Syncob: Collaborative Time Synchronization in Wireless Sensor Networks

    E-Print Network [OSTI]

    Beigl, Michael

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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

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

    E-Print Network [OSTI]

    Samuels, Julie Marie

    2012-02-14T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Landfeldt, Bjorn

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

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

    E-Print Network [OSTI]

    Kumar, Ratnesh

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

  1. Attack-Resilient Time Synchronization for Wireless Sensor Networks

    E-Print Network [OSTI]

    Yener, Aylin

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

  2. 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

  3. Wireless Sensors and Networks for Advanced Energy Management

    SciTech Connect (OSTI)

    Hardy, J.E.

    2005-05-06T23:59:59.000Z

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

  4. A Wireless Sensor Network Air Pollution Monitoring System

    E-Print Network [OSTI]

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

    2010-01-01T23:59:59.000Z

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

  5. 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

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

    E-Print Network [OSTI]

    Nascimento, Mario A.

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

  7. Time Synchronization in Hierarchical TESLA Wireless Sensor Networks

    SciTech Connect (OSTI)

    Jason L. Wright; Milos Manic

    2009-08-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Tam, Vincent W. L.

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

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

    E-Print Network [OSTI]

    Jay Yang, Shanchieh

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

  10. Directed Budget-Based Clustering for Wireless Sensor Networks

    E-Print Network [OSTI]

    Stavrakakis, Ioannis

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

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

    E-Print Network [OSTI]

    Li, Baochun

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

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

    E-Print Network [OSTI]

    Han, Richard Y.

    A Taxonomy of Wireless Micro-Sensor Network Models £ 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

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

    E-Print Network [OSTI]

    Heys, Howard

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

  14. 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

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

    E-Print Network [OSTI]

    Roedig, Utz

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

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

    E-Print Network [OSTI]

    Abu-Ghazaleh, Nael B.

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

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

    SciTech Connect (OSTI)

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

    2010-10-26T23:59:59.000Z

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

  18. On the Reliability of Wireless Sensor Networks Communications

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

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

    E-Print Network [OSTI]

    Lynch, Jerome P.

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

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

    E-Print Network [OSTI]

    Zeinalipour, Demetris

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

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

    E-Print Network [OSTI]

    Rowe, Neil C.

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

  2. Optimizing physical layer parameters for wireless sensor networks

    E-Print Network [OSTI]

    Heinzelman, Wendi

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

  3. Optimizing Physical Layer Parameters for Wireless Sensor Networks

    E-Print Network [OSTI]

    Heinzelman, Wendi

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

  4. Energy-Efficient Routing Schemes for Wireless Sensor Networks

    E-Print Network [OSTI]

    Khan, Maleq

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

  5. Utility-based Routing in Wireless Sensor Networks

    E-Print Network [OSTI]

    Wu, Jie

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

  6. Leakage-Aware Energy Synchronization for Wireless Sensor Networks

    E-Print Network [OSTI]

    Zhang, Zhi-Li

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

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

    E-Print Network [OSTI]

    Raja, Anita

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

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

    E-Print Network [OSTI]

    Cerpa, Alberto E.

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

  9. Underground Coal Mine Monitoring with Wireless Sensor Networks

    E-Print Network [OSTI]

    Liu, Yunhao

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

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

    E-Print Network [OSTI]

    Varela, Carlos

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

  11. Energy Management in Wireless Sensor Network Operations

    E-Print Network [OSTI]

    Mohapatra, Arupa Kumar

    2013-07-26T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Rowe, Neil C.

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

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

    E-Print Network [OSTI]

    Simeone, Osvaldo

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

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

    E-Print Network [OSTI]

    Nasipuri, Asis

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

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

    E-Print Network [OSTI]

    Roedig, Utz

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

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

    E-Print Network [OSTI]

    Sreenan, Cormac J.

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

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

    E-Print Network [OSTI]

    Flener, Pierre

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

  18. Resource management in heterogeneous wireless sensor networks

    E-Print Network [OSTI]

    Regini, Edoardo

    2009-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Stojmenovic, Ivan

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

  20. Wireless Sensor Networks Lecture 1: Introduction

    E-Print Network [OSTI]

    Marůti, Miklůs

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

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

    E-Print Network [OSTI]

    Savazzi, Stefano

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

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

    SciTech Connect (OSTI)

    Yi Jia

    2011-02-28T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Beigl, Michael

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

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

    E-Print Network [OSTI]

    Chen, Sheng-Wei

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

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

    E-Print Network [OSTI]

    Voigt, Thiemo

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

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

    E-Print Network [OSTI]

    Jeong, Jaehoon "Paul"

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

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

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

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

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

    E-Print Network [OSTI]

    Culler, David E.

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

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

    E-Print Network [OSTI]

    California at Berkeley, University of

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

  10. 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

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

    E-Print Network [OSTI]

    Voigt, Thiemo

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

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

    E-Print Network [OSTI]

    Jourdan, Damien, 1978-

    2006-01-01T23:59:59.000Z

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

  13. Wireless Sensor Network for Advanced Energy Management Solutions

    SciTech Connect (OSTI)

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

    2009-09-23T23:59:59.000Z

    Eaton has developed an advanced energy management solution that has been deployed to several Industries of the Future (IoF) sites. This demonstrated energy savings and reduced unscheduled downtime through an improved means for performing predictive diagnostics and energy efficiency estimation. Eaton has developed a suite of online, continuous, and inferential algorithms that utilize motor current signature analysis (MCSA) and motor power signature analysis (MPSA) techniques to detect and predict the health condition and energy usage condition of motors and their connect loads. Eaton has also developed a hardware and software platform that provided a means to develop and test these advanced algorithms in the field. Results from lab validation and field trials have demonstrated that the developed advanced algorithms are able to detect motor and load inefficiency and performance degradation. Eaton investigated the performance of Wireless Sensor Networks (WSN) within various industrial facilities to understand concerns about topology and environmental conditions that have precluded broad adoption by the industry to date. A Wireless Link Assessment System (WLAS), was used to validate wireless performance under a variety of conditions. Results demonstrated that wireless networks can provide adequate performance in most facilities when properly specified and deployed. Customers from various IoF expressed interest in applying wireless more broadly for selected applications, but continue to prefer utilizing existing, wired field bus networks for most sensor based applications that will tie into their existing Computerized Motor Maintenance Systems (CMMS). As a result, wireless technology was de-emphasized within the project, and a greater focus placed on energy efficiency/predictive diagnostics. Commercially available wireless networks were only utilized in field test sites to facilitate collection of motor wellness information, and no wireless sensor network products were developed under this project. As an outgrowth of this program, Eaton developed a patented energy-optimizing drive control technology that is complementary to a traditional variable frequency drives (VFD) to enable significant energy savings for motors with variable torque applications, such as fans, pumps, and compressors. This technology provides an estimated energy saving of 2%-10% depending on the loading condition, in addition to the savings obtained from a traditional VFD. The combination of a VFD with the enhanced energy-optimizing controls will provide significant energy savings (10% to 70% depending on the load and duty cycle) for motors that are presently connected with across the line starters. It will also provide a more favorable return on investment (ROI), thus encouraging industries to adopt VFDs for more motors within their facilities. The patented technology is based on nonintrusive algorithms that estimate the instantaneous operating efficiency and motor speed and provide active energy-optimizing control of a motor, using only existing voltage and current sensors. This technology is currently being commercialized by 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

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

    E-Print Network [OSTI]

    Kumar, Sunil

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

  15. Wireless Sensor Network for Electric Transmission Line Monitoring

    SciTech Connect (OSTI)

    Alphenaar, Bruce

    2009-06-30T23:59:59.000Z

    Generally, federal agencies tasked to oversee power grid reliability are dependent on data from grid infrastructure owners and operators in order to obtain a basic level of situational awareness. Since there are many owners and operators involved in the day-to-day functioning of the power grid, the task of accessing, aggregating and analyzing grid information from these sources is not a trivial one. Seemingly basic tasks such as synchronizing data timestamps between many different data providers and sources can be difficult as evidenced during the post-event analysis of the August 2003 blackout. In this project we investigate the efficacy and cost effectiveness of deploying a network of wireless power line monitoring devices as a method of independently monitoring key parts of the power grid as a complement to the data which is currently available to federal agencies from grid system operators. Such a network is modeled on proprietary power line monitoring technologies and networks invented, developed and deployed by Genscape, a Louisville, Kentucky based real-time energy information provider. Genscape measures transmission line power flow using measurements of electromagnetic fields under overhead high voltage transmission power lines in the United States and Europe. Opportunities for optimization of the commercial power line monitoring technology were investigated in this project to enable lower power consumption, lower cost and improvements to measurement methodologies. These optimizations were performed in order to better enable the use of wireless transmission line monitors in large network deployments (perhaps covering several thousand power lines) for federal situational awareness needs. Power consumption and cost reduction were addressed by developing a power line monitor using a low power, low cost wireless telemetry platform known as the ''Mote''. Motes were first developed as smart sensor nodes in wireless mesh networking applications. On such a platform, it has been demonstrated in this project that wireless monitoring units can effectively deliver real-time transmission line power flow information for less than $500 per monitor. The data delivered by such a monitor has during the course of the project been integrated with a national grid situational awareness visualization platform developed by Oak Ridge National Laboratory. Novel vibration energy scavenging methods based on piezoelectric cantilevers were also developed as a proposed method to power such monitors, with a goal of further cost reduction and large-scale deployment. Scavenging methods developed during the project resulted in 50% greater power output than conventional cantilever-based vibrational energy scavenging devices typically used to power smart sensor nodes. Lastly, enhanced and new methods for electromagnetic field sensing using multi-axis magnetometers and infrared reflectometry were investigated for potential monitoring applications in situations with a high density of power lines or high levels of background 60 Hz noise in order to isolate power lines of interest from other power lines in close proximity. The goal of this project was to investigate and demonstrate the feasibility of using small form factor, highly optimized, low cost, low power, non-contact, wireless electric transmission line monitors for delivery of real-time, independent power line monitoring for the US power grid. The project was divided into three main types of activity as follows; (1) Research into expanding the range of applications for non-contact power line monitoring to enable large scale low cost sensor network deployments (Tasks 1, 2); (2) Optimization of individual sensor hardware components to reduce size, cost and power consumption and testing in a pilot field study (Tasks 3,5); and (3) Demonstration of the feasibility of using the data from the network of power line monitors via a range of custom developed alerting and data visualization applications to deliver real-time information to federal agencies and others tasked with grid reliability (Tasks 6,8)

  16. Wireless sensor networks and environmental monitoring applications

    E-Print Network [OSTI]

    Le Borgne, Yann-A√ęl

    by the Human Resources and Mobility program of the European community (MEST-CT-2004-505079) #12;ULB Machine Radio: 4kbps, 180m Sensors: Light and accelerometer Energy: Solar powered Golem and deputy dust 16mm3 ­ Remote or non invasive monitoring ·... #12;Solbosch greenhouses ·Greenhouses used by different research

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

    E-Print Network [OSTI]

    Lemmon, Michael

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

  18. Precise Time Synchronization for Wireless Sensor Networks using the

    E-Print Network [OSTI]

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

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

    E-Print Network [OSTI]

    Atkinson, Robert C

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

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

    E-Print Network [OSTI]

    Cauwenberghs, Gert

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

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

    E-Print Network [OSTI]

    Shihada, Basem

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

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

    E-Print Network [OSTI]

    Heidemann, John

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

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

    E-Print Network [OSTI]

    Roedig, Utz

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

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

    E-Print Network [OSTI]

    Tetteh, William Nii Adjetey

    2007-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Hari, Piyush

    2006-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Liblit, Ben

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

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

    DOE Patents [OSTI]

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

    2009-06-16T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Willett, Rebecca

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

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

    E-Print Network [OSTI]

    Heidemann, John

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

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

    E-Print Network [OSTI]

    Vokkarane, Vinod M.

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

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

    E-Print Network [OSTI]

    Sztrik, J√°nos

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

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

    E-Print Network [OSTI]

    Ulusoy, √?zg√ľr

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

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

    E-Print Network [OSTI]

    Dai, Huaiyu

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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

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

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

    E-Print Network [OSTI]

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

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

    E-Print Network [OSTI]

    Jay Yang, Shanchieh

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

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

    E-Print Network [OSTI]

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

  18. ENERGY EFFICIENT ROUTING IN WIRELESS SENSOR NETWORKS Curt Schurgers

    E-Print Network [OSTI]

    Shihada, Basem

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

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

    E-Print Network [OSTI]

    Turgut, Damla

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

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

    E-Print Network [OSTI]

    Prakash, Ravi

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

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

    E-Print Network [OSTI]

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

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

    E-Print Network [OSTI]

    Melodia, Tommaso

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

  3. Routing algorithms for large scale wireless sensor networks

    E-Print Network [OSTI]

    Nittala Venkata, Lakshmana Prasanth

    2005-02-17T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Braun, Torsten

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

  5. Wireless Multimedia Sensor Network for plant disease detections

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

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

    E-Print Network [OSTI]

    California at Davis, University of

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

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

    E-Print Network [OSTI]

    New South Wales, University of

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

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

    E-Print Network [OSTI]

    Bustamante, Fabi√°n E.

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

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

    E-Print Network [OSTI]

    Bölöni, Ladislau L

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

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

    E-Print Network [OSTI]

    Roman, Gruia-Catalin

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

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

    E-Print Network [OSTI]

    Boutaba, Raouf

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

  12. Reconfigurable Wireless Interface for Networking Sensors (ReWINS)

    E-Print Network [OSTI]

    California at Los Angeles, University of

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

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

    E-Print Network [OSTI]

    Choi, Dae H.

    2010-01-16T23:59:59.000Z

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

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

    E-Print Network [OSTI]

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

    2010-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Mohseni, Kamran

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

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

    E-Print Network [OSTI]

    Xue, Xin

    2009-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

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

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

    E-Print Network [OSTI]

    California at Davis, University of

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

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

    E-Print Network [OSTI]

    Wong, Vincent

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

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

    E-Print Network [OSTI]

    Agogino, Alice M.

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

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

    E-Print Network [OSTI]

    Pedram, Massoud

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

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

    E-Print Network [OSTI]

    Boutaba, Raouf

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

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

    E-Print Network [OSTI]

    Sikdar, Biplab

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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

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

    E-Print Network [OSTI]

    Picco, Gian Pietro

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

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

    SciTech Connect (OSTI)

    Carlos H. Rentel

    2007-03-31T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Braun, Torsten

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

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

    E-Print Network [OSTI]

    Howard, Sheryl

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

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

    E-Print Network [OSTI]

    Shihada, Basem

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

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

    E-Print Network [OSTI]

    Egerstedt, Magnus

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

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

    E-Print Network [OSTI]

    California at Davis, University of

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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

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

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

    E-Print Network [OSTI]

    Cerpa, Alberto E.

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

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

    E-Print Network [OSTI]

    Starobinski, David

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

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

    E-Print Network [OSTI]

    Hou, Y. Thomas

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

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

    E-Print Network [OSTI]

    Tsakalides, Panagiotis

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

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

    E-Print Network [OSTI]

    Boyer, Edmond

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

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

    E-Print Network [OSTI]

    Breu, Ruth

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

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

    E-Print Network [OSTI]

    Zhang, Tonglin

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

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

    E-Print Network [OSTI]

    Shilton, Alistair

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

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

    E-Print Network [OSTI]

    Hou, Y. Thomas

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

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

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

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

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

    E-Print Network [OSTI]

    Ingram, Mary Ann

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

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

    E-Print Network [OSTI]

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

    2008-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Ahvar, Ehsan; Piran, Mohammad Jalil

    2011-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Vouyioukas, Demosthenes

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

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

    E-Print Network [OSTI]

    Bahk, Saewoong

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

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

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

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

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

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

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

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

    E-Print Network [OSTI]

    Li, Xiaolin "Andy"

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

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

    E-Print Network [OSTI]

    Tsouri, Gill

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

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

    E-Print Network [OSTI]

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

    2008-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Johansson, Karl Henrik

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

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

    E-Print Network [OSTI]

    Boyer, Edmond

    ^ut ¬īenerg¬īetique de cette estimation et de ses cons¬īequences sur la stabilit¬īe des routes construites sur (WSN) 1 Introduction Much research has considered the problem of characterizing wireless links

  15. On Perimeter Coverage in Wireless Sensor Networks with Minimum Cost

    E-Print Network [OSTI]

    Tam, Vincent W. L.

    , and asset tracking [1], [2]. In monitoring applications, small battery-powered sensor nodes are deployed of the white house so as to ensure its security. Each sensor is associated with a cost. To reduce the total

  16. Key Distribution Mechanisms for Wireless Sensor Networks: a Survey

    E-Print Network [OSTI]

    Bystroff, Chris

    of physical attacks to unattended sensors. Moreover, in some deployment sce- narios sensor nodes need, Computer Science Department, Lally 310, 110 8th Street, Troy, NY 12180-3590. Technical Report TR-05

  17. Key Distribution Mechanisms for Wireless Sensor Networks: a Survey

    E-Print Network [OSTI]

    Bystroff, Chris

    of physical attacks to unattended sensors. Moreover, in some deployment sce­ narios sensor nodes need, Computer Science Department, Lally 310, 110 8th Street, Troy, NY 12180­3590. Technical Report TR­05

  18. Integration of Groundwater Transport Models with Wireless Sensor Networks

    E-Print Network [OSTI]

    Han, Qi "Chee"

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

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

    E-Print Network [OSTI]

    Rossi, Michele

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

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

    E-Print Network [OSTI]

    Huang, Yi

    2010-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Shankar, Sonu

    2009-05-15T23:59:59.000Z

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

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

    E-Print Network [OSTI]

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

  3. Performance of wireless sensor networks under random node failures

    SciTech Connect (OSTI)

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

    2011-01-28T23:59:59.000Z

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

  4. Design & implementation of a wireless sensor prototyping kit

    E-Print Network [OSTI]

    Hope, Jamison Roger

    2005-01-01T23:59:59.000Z

    In recent years, wireless sensor networks (WSN) has become an active area of research among computer scientists. In this work, JONA, a prototyping kit for wireless sensors, will be described. The intention of this kit is ...

  5. WIRELESS SENSORS EMBEDDED IN CONCRETE Amal Abbadi

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    WIRELESS SENSORS EMBEDDED IN CONCRETE Amal Abbadi 1 Phd Student, IRCICA, IEMN, Université Lille1 antennas with concrete are investigated at 860MHz. Simulations for different cases (different concrete are presented. KEYWORDS : Wireless sensor networks, concrete attenuation, embedded antenna, concrete

  6. Loss-Resilient Proactive Data Transmission in Wireless Sensor Networks

    E-Print Network [OSTI]

    Xu, Jianliang

    environments. Moreover, sensor nodes are con- strained by energy, computation power and storage. Existing to the destination without loss. However, existing reliable transmission techniques either are too costly forecast, structural condition assessment) require reliable data communications, such that a target

  7. Backbone Discovery In Thick Wireless Linear Sensor Networks

    E-Print Network [OSTI]

    Wu, Jie

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

  8. Exploring Architectural Challenges in Scalable Underwater Wireless Sensor Networks

    E-Print Network [OSTI]

    Shi, Zhijie Jerry

    on climate and living conditions of plants and animals ¬≠ Marine microorganism ¬≠ Pollution Disaster early ¬≠ Acoustic channels adopted ¬∑ Limited bandwidth: Bandwidth √? Range product = 40 kbps¬∑km ¬∑ Long delay: 1.48 x node Sensor probes ¬≠ Interface circuitry Controller (processors) Trans-receiver ¬≠ Acoustic modem

  9. Towards Autonomous Indoor Flights Using Wireless Sensor Network Based Localization

    E-Print Network [OSTI]

    Breu, Ruth

    , 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

  10. An Adaptive Coordinated Medium Access Control for Wireless Sensor Networks

    E-Print Network [OSTI]

    Turgut, Damla

    , Damla Turgut Electrical and Computer Engineering University of Central Florida Orlando, FL 32816 Email the adaptive duty cycle scheme within the framework of sensor-MAC (S-MAC). The novelty of our protocol latency and throughput are always trying to follow the classic IEEE 802.11 MAC (no duty cycle), which

  11. Wireless Sensor Network Architecture for Smart Venkata Reddy Adama

    E-Print Network [OSTI]

    discovery. For this purpose, we implemented an API to access services on sensor nodes following the architectural style of representational state transfer REST). We implemented a prototype application based and are made accessible using a REST full web service. While many existing approaches provide web services

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

    SciTech Connect (OSTI)

    Carols H. Rentel

    2007-03-31T23:59:59.000Z

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

  13. Wireless Sensor Networks in the Area of Medical

    E-Print Network [OSTI]

    Narasayya, Vivek

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

  14. Resilient Event Detection in Wireless Sensor Networks Angelika Herbold1

    E-Print Network [OSTI]

    Bulusu, Nirupama

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

  15. A congestion control scheme for wireless sensor networks

    E-Print Network [OSTI]

    Xiong, Yunli

    2005-08-29T23:59:59.000Z

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

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

    E-Print Network [OSTI]

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

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

    E-Print Network [OSTI]

    Wu, Jie

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

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

    E-Print Network [OSTI]

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

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

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

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

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

    E-Print Network [OSTI]

    Boyer, Edmond

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

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

    E-Print Network [OSTI]

    Zhou, Shengli

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

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

    E-Print Network [OSTI]

    Dobson, Kelly

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

  3. Wireless passive radiation sensor

    DOE Patents [OSTI]

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

    2013-12-03T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Radha, Hayder

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

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

    SciTech Connect (OSTI)

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

    2010-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Kuzmanov, Georgi

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

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

    E-Print Network [OSTI]

    Fariborzi, Hossein

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

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

    E-Print Network [OSTI]

    Wong, Vincent

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

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

    E-Print Network [OSTI]

    Lynch, Jerome P.

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

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

    E-Print Network [OSTI]

    Rossi, Sabina

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

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

    E-Print Network [OSTI]

    Fan, Jeffrey

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

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

    E-Print Network [OSTI]

    Chen, Shigang

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

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

    E-Print Network [OSTI]

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

    2011-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Malesci, Umberto

    2005-01-01T23:59:59.000Z

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

  15. Energy Aware Node Selection for Cluster-based Data Accuracy Estimation in Wireless Sensor Networks

    E-Print Network [OSTI]

    Karjee, Jyotirmoy

    2011-01-01T23:59:59.000Z

    The main objective of this paper is to reduce the number of sensor nodes by estimating a trade off between data accuracy and energy consumption for selecting nodes in probabilistic approach in distributed networks. Design Procedure/Approach: Observed data are highly correlated among sensor nodes in the spatial domain due to deployment of high density of sensor nodes. These sensor nodes form non-overlapping distributed clusters due to high data correlation among them. We develop a probabilistic model for each distributed cluster to perform data accuracy and energy consumption model in the network. Finally we find a trade off between data accuracy and energy consumption model to select an optimal number of sensor nodes in each distributed cluster. We also compare the performance for our data accuracy estimation model with information accuracy model for each distributed cluster in the network. Practical Implementation: Measuring temperature in physical environment and measuring moisture content in agricultural f...

  16. Applications of Industrial Wireless Sensor Milan Erdelj

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ...................................... 10 1.3.2.2 Hazard ........................................ 10 1.3.2.3 Security manuscript, published in "Industrial Wireless Sensor Networks: Applications, Protocols, and Standards CRC the problems of air, water (together with waste water) pollution, but covers the production material pollution

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

    E-Print Network [OSTI]

    Heidemann, John

    networks: tuning density to trade operational quality against lifetime; using multi- ple sensor modalities, water, soil, chemistry); condition based maintenance; smart spaces; military surveillance; preci- sion or urban locations). The above requirements impose substantial physical constraints at both the node

  18. Calibrating Wireless Sensor Network Simulation Models with Real-World Experiments

    E-Print Network [OSTI]

    Braun, Torsten

    ,braun}@iam.unibe.ch Abstract. This paper studies the energy-efficiency and service charac- teristics of a recently developed energy-efficient MAC protocol for wire- less sensor networks in simulation and on a real sensor hardware level of detail. In this paper we analyze the energy-efficiency and service characteristics

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

    E-Print Network [OSTI]

    Lanthier, Mark

    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

  20. 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

  1. Modular sensor network node

    DOE Patents [OSTI]

    Davis, Jesse Harper Zehring (Berkeley, CA); Stark, Jr., Douglas Paul (Tracy, CA); Kershaw, Christopher Patrick (Hayward, CA); Kyker, Ronald Dean (Livermore, CA)

    2008-06-10T23:59:59.000Z

    A distributed wireless sensor network node is disclosed. The wireless sensor network node includes a plurality of sensor modules coupled to a system bus and configured to sense a parameter. The parameter may be an object, an event or any other parameter. The node collects data representative of the parameter. The node also includes a communication module coupled to the system bus and configured to allow the node to communicate with other nodes. The node also includes a processing module coupled to the system bus and adapted to receive the data from the sensor module and operable to analyze the data. The node also includes a power module connected to the system bus and operable to generate a regulated voltage.

  2. Energy-efficient wireless sensors : fewer bits, Moore MEMS

    E-Print Network [OSTI]

    Chen, Fred (Fred Fu-Chin)

    2011-01-01T23:59:59.000Z

    Adoption of wireless sensor network (WSN) technology could enable improved efficiency across a variety of industries that include building management, agriculture, transportation, and health care. Most of the technical ...

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

    E-Print Network [OSTI]

    Won, Myounggyu

    2013-07-17T23:59:59.000Z

    Complex Network Topologies (CNTs)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...

  4. acoustic wave sensors: Topics by E-print Network

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

    acoustic wave devices can be used as wireless sensor elements (SAW transponders Zachmann, Gabriel 30 Underwater Acoustic Sensor Networks: Research Challenges CiteSeer...

  5. acoustic wave sensor: Topics by E-print Network

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

    acoustic wave devices can be used as wireless sensor elements (SAW transponders Zachmann, Gabriel 30 Underwater Acoustic Sensor Networks: Research Challenges CiteSeer...

  6. Localized Pipeline Encroachment Detector System Using Sensor Network

    E-Print Network [OSTI]

    Ou, Xiaoxi 1986-

    2011-08-08T23:59:59.000Z

    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...

  7. Scalable Coordination for Wireless Sensor Networks: SelfConfiguring Localization Systems

    E-Print Network [OSTI]

    Heidemann, John

    networks: tuning density to trade operational quality against lifetime; using multi­ ple sensor modalities, water, soil, chemistry); condition based maintenance; smart spaces; military surveillance; preci­ sion) or inhospitable terrain (toxic or urban locations). The above requirements impose substantial physical constraints

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

    E-Print Network [OSTI]

    Guo, Minyi

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

  9. Anti-Collusion Position Estimation in Wireless Sensor Networks Negar Kiyavash Farinaz Koushanfar

    E-Print Network [OSTI]

    and demand-initiated self-organizing structure of sensor net- malicious attacks. A host of nefarious attacks networks. Addi- niques typically use distance measurements from a spe- tionally, we propose a practical the best random sample. The performance of the pro- Strength (RSSI) [4] measurements for calculating

  10. Prolonging Sensor Network Lifetime Through Wireless Charging Yang Peng, Zi Li, Wensheng Zhang, and Daji Qiao

    E-Print Network [OSTI]

    Qiao, Daji

    networks. In this paper, we design such a system, build a proof-of-concept proto- type, conduct experiments, little work has been reported on designing and implementing a wire- less charging system for sensor and design pa- rameters have also been studied, which may serve as useful guidelines in actual deployment

  11. Wireless sensor networks for off-shore oil and gas installations

    E-Print Network [OSTI]

    Gjessing, Stein

    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

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

    E-Print Network [OSTI]

    Nasipuri, Asis

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

  13. Network coded wireless architecture

    E-Print Network [OSTI]

    Katti, Sachin Rajsekhar

    2008-01-01T23:59:59.000Z

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

  14. Sustainability of Self-Configuring Wireless Sensor Bozena Kaminska

    E-Print Network [OSTI]

    Gburzynski, Pawel

    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

  15. Epidemic Propagation In Overlaid Wireless Networks

    SciTech Connect (OSTI)

    Yanmaz, Evsen [Los Alamos National Laboratory

    2008-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Holliday, JoAnne

    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

  17. CCEC Seminar Wireless Sensors for SemiconductorWireless Sensors for Semiconductor

    E-Print Network [OSTI]

    Akhmedov, Azer

    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

  18. Topology Control in Wireless Ad Hoc and Sensor PAOLO SANTI

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    - works to reduce energy consumption, which is essential to extend the network operational time. The goal, with the purpose of maintaining some global graph property (e.g., connectivity) while reducing energy consumption and Phrases: Connectivity, Energy consumption, Sensor networks, Topol- ogy control, Wireless ad hoc networks 1

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

    E-Print Network [OSTI]

    Wu, Jie

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

  20. Chapters 6 & 8 Wireless Networks

    E-Print Network [OSTI]

    Lu, Enyue "Annie"

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

  1. Video transmission over wireless networks

    E-Print Network [OSTI]

    Zhao, Shengjie

    2005-08-29T23:59:59.000Z

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

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

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

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

  3. Special Issue "Underwater Sensor Nodes and Underwater Sensor Networks" A special issue of Sensors (ISSN 1424-8220)

    E-Print Network [OSTI]

    Chen, Min

    aquatic environments. Marine surveillance, pollution detection and monitoring, and oceanographic data (salinity, conductivity, turbidity, pH, oxygen, temperature, depth, etc.) - Sediments and pollution sensor nodes - Acoustic sensors - Underwater sensor network architectures - Wired and wireless protocols

  4. ORACLE: Mobility control in wireless sensor and actor networks Kaoru Ota a,b,

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    as energy suppliers to recharge energy in the battery of deployed sensors. Another category includes

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

    E-Print Network [OSTI]

    Atkinson, Robert C

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

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

    E-Print Network [OSTI]

    Johansson, Karl Henrik

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

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

    E-Print Network [OSTI]

    Ning, Peng

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

  8. 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

  9. Automated Intruder Tracking using Particle Filtering and a Network of Binary Motion Sensors

    E-Print Network [OSTI]

    Goldberg, Ken

    infrared (PIR) motion sensors that suggest that our estimator is effective and degrades gracefully with increasing sensor refractory periods. Index Terms - Security, Sensor Networks, Particle Filter, Tracking, Sensor Fusion. I. INTRODUCTION Many new technologies for automated security, wireless networks

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

    E-Print Network [OSTI]

    Picco, Gian Pietro

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

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

    E-Print Network [OSTI]

    Isler, Ibrahim Volkan

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

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

    E-Print Network [OSTI]

    Nasipuri, Asis

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

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

    E-Print Network [OSTI]

    Tsakalides, Panagiotis

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

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

    E-Print Network [OSTI]

    Goldstein, Seth Copen

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

  15. Experimental Analysis of Coordination Strategies to Support Wireless Sensor Networks Composed by

    E-Print Network [OSTI]

    Wagner, Fl√°vio Rech

    in relation to energy consumption, and, due to this fact, algorithms to coordinate these systems are generally strategies; unmanned aerial vehicle ­carried sensors; area surveillance. I. INTRODUCTION A number of studies or in fixed places and sensors that are carried by mobile autonomous robots like platforms. These platforms

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

    E-Print Network [OSTI]

    Lin, Hui 1981-

    2010-11-11T23:59:59.000Z

    ignated as clusterheads (CHs). Each sensor is assigned to at least one CH which reduces the total data size that it receives from sensors via aggregation. Each CH routes data to a sink either through other CHs, which act only as relays without... aggregation, or directly. Such a structure is beneficial in terms of energy efficiency in three ways: 1) Since the sensors in close proximity of each other are likely to be in the same cluster and may generate very similar data, data aggregation at CHs helps...

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

    E-Print Network [OSTI]

    Noh, Kyoung Lae

    2009-05-15T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Liu, Mingyan

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

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

    E-Print Network [OSTI]

    Kam, Clement

    2010-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Lu, Chenyang

    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

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

    E-Print Network [OSTI]

    Kam, Clement

    2010-01-01T23:59:59.000Z

    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

  2. Insecurity of Wireless Networks

    SciTech Connect (OSTI)

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

    2012-01-01T23:59:59.000Z

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

  3. ERTP: Energy-Efficient and Reliable Transport Protocol for Data Streaming in Wireless Sensor

    E-Print Network [OSTI]

    New South Wales, University of

    ERTP: Energy-Efficient and Reliable Transport Protocol for Data Streaming in Wireless Sensor applications in Wireless Sensor Networks require re- liable and energy-efficient transport protocols [17] [18 of minutes or hours), energy-efficiency is. Long-term operation and reliable delivery of the sensed data

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

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

    the consumption of energy throughout the network. In general terms, energy saving protocols are not necessarily to efficiently sup- port the exchange of information--basically by saving processing overhead and thus energy, energy savers and energy balancers. The former try to decrease the energy consumption of the network

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

    E-Print Network [OSTI]

    Namboodiri, Vinod

    - 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

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

    E-Print Network [OSTI]

    Shinozuka, Masanobu

    , 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

  7. Event Classification and Filtering of False Alarms in Wireless Sensor Networks Markus Walchli and Torsten Braun

    E-Print Network [OSTI]

    Braun, Torsten

    or non-relevant event reports, communication costs can be saved and false alarms prevented. To evaluate an impact on reporting delays. On the other hand, preventing false alarms saves costs in terms of energy- age, a radio, and an array of sensors to monitor the physical environment. Environmental data

  8. Energy-efficient Management of Heterogeneous Wireless Sensor Markus Anwander, Gerald Wagenknecht, Torsten Braun

    E-Print Network [OSTI]

    Braun, Torsten

    Energy-efficient Management of Heterogeneous Wireless Sensor Networks Markus Anwander, Gerald) management and code distribution framework. This includes the determination of appropriate sensor node and implementation of a management architecture for WSNs. In a first step several types of sensor nodes and sensor

  9. Relay node placement in large scale wireless sensor networks Jian Tang*, Bin Hao, Arunabha Sen

    E-Print Network [OSTI]

    Tang, Jian "Neil"

    efficient design is needed for prolonging network lifetime. Computer Communications 29 (2006) 490­501 www for a fairly short period of time if operated at high transmission power levels. As a consequence, energy

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

    E-Print Network [OSTI]

    Turau, Volker

    to control heliostats of a solar power plant. For this purpose a base station ei- ther communicates these execution environments can seamlessly be interconnected to a virtual, homogeneous network. This provides

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

    E-Print Network [OSTI]

    Allen, Michael

    Water distribution systems comprise labyrinthine networks of pipes, often in poor states of repair, that are buried beneath our city streets and relatively inaccessible. Engineers who manage these systems need reliable ...

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

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

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

  13. IMPLEMENTATION OF TEAN-SLEEP FOR WIRELESS SENSOR NETWORKS Jesus Jaquez, David Valencia, Manikanden Balakrishnan,

    E-Print Network [OSTI]

    Johnson, Eric E.

    , storage but most importantly in energy. When a node's energy is exhausted, the node can no longer provide. A node is able to save energy while idle by sleeping. Topology and Energy Adaptive, Non-synchronous (TEAN) sleep provides the nodes in a network a mechanism to save energy by sleeping while also keeping

  14. Energy Management for Time-Critical Energy Harvesting Wireless Sensor Networks

    E-Print Network [OSTI]

    Aydin, Hakan

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

  15. Lightweight Detection and Classification for Wireless Sensor Networks in Realistic Environments

    E-Print Network [OSTI]

    Batson, Alan

    too complex for energy-and-cost-effective WSN nodes. This study explores how to design efficient sensing and classification al- gorithms that achieve reliable sensing performance on energy-and- cost network system. Moreover, a sen- sor node must be energy efficient. As a res

  16. Scheduling Data Delivery in Heterogeneous Wireless Sensor Networks Daeseob Lim1

    E-Print Network [OSTI]

    Simunic, Tajana

    to the internet backbone for further analysis and storage. Quality of service (QoS) is an important issue and tracking temperature distributions of server racks to studying wildlife and aiding military in warfare. Although much of the research on WSNs has been primarily focused on design of homogeneous networks

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

    E-Print Network [OSTI]

    Gomez-Castellanos, Javier

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

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

    E-Print Network [OSTI]

    Sean Askay

    2006-01-01T23:59:59.000Z

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

  19. Towards a Tailored Sensor Network for Fire Emergency Monitoring in Large buildings†

    E-Print Network [OSTI]

    Upadhyay, Rochan

    2007-10-02T23:59:59.000Z

    In this presentation, we describe some of the ongoing efforts in developing a wireless sensor network tailored specifically for fire emergency monitoring. Network simulations of a dense sensor network with a flat architecture ...

  20. Steam distribution and energy delivery optimization using wireless sensors

    SciTech Connect (OSTI)

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

    2011-01-01T23:59:59.000Z

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

  1. Ultra-wideband radar sensors and networks

    DOE Patents [OSTI]

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

    2013-08-06T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Dai, Lillian Lei, 1978-

    2008-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    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

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

    E-Print Network [OSTI]

    Ray, Asok

    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

  5. Hybrid Sensor Networks: A Small World Gaurav Sharma

    E-Print Network [OSTI]

    Mazumdar, Ravi R.

    wires to a wireless sensor network can not only reduce the average energy expenditure per sensor node, but also the non-uniformity in the energy expenditure across the sensor nodes. Categories and Subject the average hop count of the network, resulting in a reduced energy dissipa- tion per node. We also show

  6. Partially Controlled Deployment Strategies for Wireless Sensors

    E-Print Network [OSTI]

    Santi, Paolo

    be formed and used in several application scenarios: smart home environ- ments, intrusion detection a certain set of grid-like strategies that reflect the (one- or two-dimensional) symmetry of the region years. By con- necting tiny, smart sensor nodes by means of wireless transceivers, large WSNs Part

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

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

  8. Workplace Applications of Sensor Networks* W. Steven Conner1

    E-Print Network [OSTI]

    Heidemann, John

    ]. The recent trend to integrate wireless networking into interactive devices such as PDAs, cellular phones throughout workplaces in both industrial and non-industrial office environments. These sensors include HVAC

  9. Nano-scale Sensor Networks for Chemical Eisa Zarepour1

    E-Print Network [OSTI]

    New South Wales, University of

    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

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

    E-Print Network [OSTI]

    Wu, Jie

    ' 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

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

    E-Print Network [OSTI]

    Rajan, Dinesh

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

  12. Energy efficiency in wireless networks

    E-Print Network [OSTI]

    Jung, Eun-Sun

    2005-11-01T23:59:59.000Z

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

  13. Periodic Constraint-Based Control Using Dynamic Wireless Sensor Scheduling

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    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

  14. Test Plan of the Anticipatory Wirelss Sensor Network for the Critical Energy Infrastructure

    SciTech Connect (OSTI)

    Carlos Rentel

    2006-09-01T23:59:59.000Z

    The test plan for the performance of the Anticipatory Wireless Sensor Network (A-WSN) is presented. The results of the test campaigns will be obtained after actual measurements are taken in the field with the Wireless Sensor Network developed by The Innovation Center-Eaton Corp., and the Anticipatory algorithms developed by ORNL.

  15. Recent advances in the development of a self-powered wireless sensor network for structural health prognosis

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    on acoustic emission produced by corrosion on reinforced concrete and by crack propagation on steel components. Several wireless prototype nodes have been already requested for applications on offshore oil platforms, energy harvesting, structural health monitoring, diagnosis and prognosis, corrosion, crack propagation. 1

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

    E-Print Network [OSTI]

    Jiang, Jehn-Ruey

    )(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

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

    E-Print Network [OSTI]

    Levis, Philip

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

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

    SciTech Connect (OSTI)

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

    2008-01-01T23:59:59.000Z

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

  19. Energy Efficient Routing in Wireless Sensor Mehdi Kalantari and Mark Shayman

    E-Print Network [OSTI]

    Shayman, Mark A.

    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

  20. Energy-efficient Management of Heterogeneous Wireless Sensor Markus Anwander, Gerald Wagenknecht, Torsten Braun

    E-Print Network [OSTI]

    Braun, Torsten

    Energy-efficient Management of Heterogeneous Wireless Sensor Networks Markus Anwander, Gerald as an appropriate operating system to support dynamic and energy-efficient reconfiguration as well as code updates for communication. The management architecture consists of the following infrastructural elements: a management

  1. Optimizing Data Replication for Expanding Ring-based Queries in Wireless Sensor

    E-Print Network [OSTI]

    Krishnamachari, Bhaskar

    Optimizing Data Replication for Expanding Ring-based Queries in Wireless Sensor Networks Bhaskar are disseminated using expand- ing rings. We obtain closed-form approximations for the expected energy costs such as changes, movements and failures of nodes in the net- work). Randomized storage can also provide for a more

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

    E-Print Network [OSTI]

    Patwari, Neal

    .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

  3. Energy Conservation in Reliable Wireless Sensor Fatma Bouabdallah, Nizar Bouabdallah and Raouf Boutaba

    E-Print Network [OSTI]

    Boutaba, Raouf

    Energy Conservation in Reliable Wireless Sensor Networks Fatma Bouabdallah, Nizar Bouabdallah in the event area, enables significant energy conservation. I. INTRODUCTION Energy-efficiency is a critical the significant energy conservation that could be achieved when spatial correlation is exploited to reduce

  4. Copyrighted (Textbook) Fei Hu and Xiaojun Cao, Wireless Sensor Networks: Principles and Practice, CRC Press Page 1 Chapter 1: Introduction

    E-Print Network [OSTI]

    Hu, Fei

    it keep track of accurate positions. A solar panel could be used to absorb solar energy, which avoids. The entire sensor can be powered by batteries or other power sources (such as solar) with a lifetime applications. In the future the unit price could be less than $1 each [Akyildiz02].

  5. Everlast: Long-life, Supercapacitor-operated Wireless Sensor Node

    E-Print Network [OSTI]

    Chou, Pai H.

    Everlast: Long-life, Supercapacitor-operated Wireless Sensor Node Farhan Simjee and Pai H. Chou,phchou}@uci.edu ABSTRACT This paper describes a supercapacitor-operated, solar-powered wire- less sensor node called, Design Keywords Maximum power point tracking, supercapacitor, solar power, wire- less sensors 1

  6. Routing in heterogeneous wireless ad hoc networks

    E-Print Network [OSTI]

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

    2008-01-01T23:59:59.000Z

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

  7. Virtual infrastructure for wireless ad hoc networks

    E-Print Network [OSTI]

    Gilbert, Seth, 1976-

    2007-01-01T23:59:59.000Z

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

  8. Wireless Network Capacity Management: A Real Options Approach

    E-Print Network [OSTI]

    Forsyth, Peter A.

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

  9. 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]

    Heinzelman, Wendi

    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

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

    E-Print Network [OSTI]

    Dutta, Prabal

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

  11. Multiscale wireless sensor node for impedance-based SHM and low-frequency vibration data acquisition

    SciTech Connect (OSTI)

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

    2009-01-01T23:59:59.000Z

    This paper presents recent developments in an extremely compact, wireless impedance sensor node (WID3, Wireless Impedance Device) at Los Alamos National Laboratory for use in impedance-based structural health monitoring (SHM), Sensor diagnostics and low-frequency vibrational data acquisition. The current generation WID3 is equipped with an Analog Devices AD5933 impedance chip that can resolve measurements up to 100 kHz, a frequency range ideal for many SHM applications. An integrated set of multiplexers allows the end user to monitor seven piezoelectric sensors from a single sensor node. The WID3 combines on-board processing using an Atmega1281 microcontroller, data storage using flash memory, wireless communications capabilities, and a series of internal and external triggering options into a single package to realize a truly comprehensive, self-contained wireless active-sensor node for SHM applications. Furthermore, we recently extended the capability of this device by implementing low-frequency analog to digital and digital and analog converters so that the same device can measure structural vibration data. The WID3 requires less than 70 mW of power to operate, and it can operate in various wireless network paradigms. The performance of this miniaturized and portable device is compared to our previous results and its broader capabilities are demonstrated.

  12. Network Embedded Systems Sensor Networks

    E-Print Network [OSTI]

    Amir, Yair

    Battery Energy Reserve Manager = Bank Each task requests an account with conditions W ≠ fraction Tracking 9 #12;Virtual Battery: An Energy Reserve Abstraction for Embedded Sensor Networks Qing Cao of real battery allocated N ≠ number of energy installments L ≠ expected lifetime of the task C

  13. Building Adaptable Sensor Networks with Sensor Cubes

    E-Print Network [OSTI]

    Roussos, George

    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

  14. Physiological Sensor System for a wireless tactile display

    E-Print Network [OSTI]

    Deo, Nikhila

    2005-01-01T23:59:59.000Z

    This research focuses on the development of a wearable Physiological Sensor System (PSS) that can be used with a wireless tactile control unit to monitor the physiological status of a mobile user. Two physiological variables, ...

  15. 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

  16. SPAPI: A Security and Protection Architecture for Physical Infrastructures and Its Deployment Strategy Using Wireless Sensor Networks

    E-Print Network [OSTI]

    infrastructures such as important government and corporate buildings and manufacturing facilities; water supply facility. 1. Introduction People's lives in a modern state depend on the smooth functioning of critical, electricity, telecommunication, gas and petroleum distribution networks; interstate roads, etc. Until recently

  17. A Mechanically Stable, Low Profile, Omni-Directional Solar-Cell Integrated Antenna for Outdoor Wireless Sensor Nodes

    E-Print Network [OSTI]

    Tentzeris, Manos

    sensor network standard is proposed by integrating a circular array of slot antennas with solar cells. IIA Mechanically Stable, Low Profile, Omni-Directional Solar-Cell Integrated Antenna for Outdoor Wireless Sensor Nodes T. Wu, R.L. Li, and M. M. Tentzeris School of Electrical and Computer Engineering

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

    E-Print Network [OSTI]

    Tentzeris, Manos

    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

  19. Reconfigurable middleware architectures for large scale sensor networks

    SciTech Connect (OSTI)

    Brennan, Sean M.

    2010-03-01T23:59:59.000Z

    Wireless sensor networks, in an e#11;ffort to be energy efficient, typically lack the high-level abstractions of advanced programming languages. Though strong, the dichotomy between these two paradigms can be overcome. The SENSIX software framework, described in this dissertation, uniquely integrates constraint-dominated wireless sensor networks with the flexibility of object-oriented programming models, without violating the principles of either. Though these two computing paradigms are contradictory in many ways, SENSIX bridges them to yield a dynamic middleware abstraction unifying low-level resource-aware task recon#12;figuration and high-level object recomposition.

  20. 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]

    Roedig, Utz

    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 monitoring and debugging Integration with IT Systems Fig. 1. The GINSENG approach. Fig. 2. GALP oil refinery

  1. On Minimum Delay Duty-Cycling Protocol in Sustainable Sensor Network

    E-Print Network [OSTI]

    Wu, Jie

    by other energy sources such as solar power. Due to the varying environment conditions, the energy supply networks, solar powered, duty- cycle, submodular. I. INTRODUCTION The wireless sensor network (WSN over time. To support those long-term applications, sustainable sensor networks, which harvest energy

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

    E-Print Network [OSTI]

    Tentzeris, Manos

    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

  3. SECURITY FOR WIRELESS NETWORKS AND DEVICES

    E-Print Network [OSTI]

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

  4. Reliability Gain of Network Coding in Lossy Wireless Networks

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

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

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

    E-Print Network [OSTI]

    Lou, Chong

    2015-01-01T23:59:59.000Z

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

  6. Ultra-High Temperature Distributed Wireless Sensors

    SciTech Connect (OSTI)

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

    2013-03-31T23:59:59.000Z

    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.

  7. DAMAGE DETECTION METHODS ON WIND TURBINE BLADE TESTING WITH WIRED AND WIRELESS ACCELEROMETER SENSORS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    DAMAGE DETECTION METHODS ON WIND TURBINE BLADE TESTING WITH WIRED AND WIRELESS ACCELEROMETER turbine blade. We compare the data collected from the wireless sensors against wired sensors for nonstationary blade excitations. KEYWORDS : Structural Health Monitoring, Damage Detection, Wind Turbine

  8. Iterative Collision Resolution in Wireless Networks

    E-Print Network [OSTI]

    Stuckman, Katherine Christine

    2013-03-29T23:59:59.000Z

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

  9. Interference management in wireless cellular networks

    E-Print Network [OSTI]

    Burchardt, Harald Peter

    2013-07-01T23:59:59.000Z

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

  10. Communication in automation, including networking and wireless

    E-Print Network [OSTI]

    Antsaklis, Panos

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

  11. Controlled mobility in sensor networks

    E-Print Network [OSTI]

    Sugihara, Ryo

    2009-01-01T23:59:59.000Z

    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

  12. Intrusion detection and monitoring for wireless networks.

    SciTech Connect (OSTI)

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

    2005-11-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Serdijn, Wouter A.

    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

  14. Mobility in Wireless Sensor Networks

    E-Print Network [OSTI]

    Mehta, Ankur Mukesh

    2012-01-01T23:59:59.000Z

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

  15. Towards a Tailored Sensor Network for Fire Emergency Monitoring in Large Buildings†

    E-Print Network [OSTI]

    Tsertou, Athanasia; Upadhyay, Rochan; McLaughlin, Stephen; Laurenson, David I

    2007-01-01T23:59:59.000Z

    Modern fire emergency systems are slowly moving from the traditional data-logging systems to a heterogeneous and dense network of wired/wireless sensors that can give a more complete view of the phenomenon. When the density ...

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

    SciTech Connect (OSTI)

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

    2003-12-01T23:59:59.000Z

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

  17. Insider Attacker Detection in Wireless Sensor Fang Liu & Xiuzhen Cheng

    E-Print Network [OSTI]

    Cheng, Xiuzhen "Susan"

    to be low-cost and lack of tamper resistance. The compromise or capture of a sensor releases all the intrusion detection techniques developed for a fixed wired network. A typical low-cost sensor has limited working towards securing sensor networks in the fields of pairwise key establishment [13

  18. Wireless, automated monitoring for potential landslide hazards

    E-Print Network [OSTI]

    Garich, Evan Andrew

    2007-09-17T23:59:59.000Z

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

  19. Tethys: A Distributed Algorithm for Intelligent Aggregation in Sensor Networks

    E-Print Network [OSTI]

    Kravets, Robin

    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

  20. Redundancy Control in Large Scale Sensor Networks via Compressive Sensing

    E-Print Network [OSTI]

    Wang, Yongcai

    . R. China 2 NEC Labs, Beijing, P. R. China Abstract: In wireless sensor networks for smart city 1 Introduction & background With the growing demands of "smart planet" and "smart city" applications or smart planet applications, massive volumes of real-time sensory data are being generated in every second

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

    E-Print Network [OSTI]

    Ozgul, Damla

    2011-10-21T23:59:59.000Z

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

  2. Wireless Magnetic Sensor Applications in Transportation Infrastructure

    E-Print Network [OSTI]

    Sanchez, Rene Omar

    2012-01-01T23:59:59.000Z

    and fourth vehicle downstream signature (five vehicleof Figures Upstream and downstream middle sensor raw signals2.2 Upstream and downstream middle sensor signature

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

    E-Print Network [OSTI]

    Sharma, Vinod

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

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

    E-Print Network [OSTI]

    Wang, Yu

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

  5. Topology Reconstruction and Characterisation of Wireless Ad Hoc Networks

    E-Print Network [OSTI]

    Roughan, Matthew

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

  6. On the Performance of Lossy Compression Schemes for Energy Constrained Sensor Networking

    E-Print Network [OSTI]

    Rossi, Michele

    A On the Performance of Lossy Compression Schemes for Energy Constrained Sensor Networking DAVIDE of Padova Lossy temporal compression is key for energy constrained wireless sensor networks (WSN), where complexity and energy consumption. Specifically, we first carry out a performance evaluation of existing

  7. Flexible network wireless transceiver and flexible network telemetry transceiver

    DOE Patents [OSTI]

    Brown, Kenneth D. (Grain Valley, MO)

    2008-08-05T23:59:59.000Z

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

  8. LOCALIZATION AND ENERGY MODELING IN WIRELESS SENSOR Ali Shareef

    E-Print Network [OSTI]

    Zhu, Yifeng

    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

  9. Lifetime Prediction for Supercapacitor-powered Wireless Sensor Nodes

    E-Print Network [OSTI]

    Turau, Volker

    Lifetime Prediction for Supercapacitor-powered Wireless Sensor Nodes Christian Renner, J step towards reaching this goal: It explores discharging-characteristics of supercapacitors, discusses-ion polymers, supercapacitors can last for 10 years or even more. Superca- pacitors do not need a complex

  10. Prediction and Management in Energy Harvested Wireless Sensor Nodes

    E-Print Network [OSTI]

    Simunic, Tajana

    : tajana@ucsd.edu Abstract--Solar panels are frequently used in wireless sensor nodes because they can with rechargeable energy storage (e.g. batteries and super capacitors). Many different types of energy harvesting as energy storage units and a solar panel for energy harvesting. Shimmer evaluates the health of a large

  11. AN ENERGY BENCHMARK FOR SOFTWARE UPDATES ON WIRELESS SENSOR NODES

    E-Print Network [OSTI]

    Sreenan, Cormac J.

    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

  12. An Environmental Monitoring System with Integrated Wired and Wireless Sensors

    E-Print Network [OSTI]

    Huang, Yan

    environmental monitoring cyber infrastruc- ture that features (1) soil moisture monitoring with flexible spatial Environmental Observatory (TEO) infrastructure [9] for long-term operation. The new WSN-based soil moistureAn Environmental Monitoring System with Integrated Wired and Wireless Sensors Jue Yang, Chengyang

  13. 1076 IEEE TRANSACTIONS ON SMART GRID, VOL. 4, NO. 2, JUNE 2013 Wireless Network Design for Transmission Line

    E-Print Network [OSTI]

    Manimaran, Govindarasu

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

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

    E-Print Network [OSTI]

    Barthelat, Francois

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

  15. Energy Conservation in Sensor and

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    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

  16. Secure and efficient wireless networks

    E-Print Network [OSTI]

    Bellardo, John Michael

    2006-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Han, Qi "Chee"

    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

  18. E-Print Network 3.0 - array device capable Sample Search Results

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

    8 Ad-hoc Wireless Sensor Networks CS 385 --Fall 2009 Course: Ad-hoc Wireless Sensor Networks (CS-385) Summary: - ing and remote sensing are tiny wireless computing devices...

  19. Wireless sensor systems and methods, and methods of monitoring structures

    DOE Patents [OSTI]

    Kunerth, Dennis C.; Svoboda, John M.; Johnson, James T.; Harding, L. Dean; Klingler, Kerry M.

    2007-02-20T23:59:59.000Z

    A wireless sensor system includes a passive sensor apparatus configured to be embedded within a concrete structure to monitor infiltration of contaminants into the structure. The sensor apparatus includes charging circuitry and a plurality of sensors respectively configured to measure environmental parameters of the structure which include information related to the infiltration of contaminants into the structure. A reader apparatus is communicatively coupled to the sensor apparatus, the reader apparatus being configured to provide power to the charging circuitry during measurements of the environmental parameters by the sensors. The reader apparatus is configured to independently interrogate individual ones of the sensors to obtain information measured by the individual sensors. The reader apparatus is configured to generate an induction field to energize the sensor apparatus. Information measured by the sensor apparatus is transmitted to the reader apparatus via a response signal that is superimposed on a return induction field generated by the sensor apparatus. Methods of monitoring structural integrity of the structure are also provided.

  20. E-Print Network 3.0 - advancement research cpar Sample Search...

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

    13 Cost Efficient Routing Strategies over Virtual Coordinates for Wireless Sensor Networks Summary: few years, advances in the hardware for wireless networking,...

  1. ENERGY EFFICIENCY AND SECURITY FOR MULTIHOP WIRELESS NETWORKS

    E-Print Network [OSTI]

    Vaidya, Nitin

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

  2. Survivability Considerations in Wireless Networks

    E-Print Network [OSTI]

    Ning, Jianxia

    2012-01-01T23:59:59.000Z

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

  3. Graphene-enabled Wireless Communication Networks

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

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

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

    E-Print Network [OSTI]

    Rahnavard, Nazanin

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

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

    E-Print Network [OSTI]

    New South Wales, University of

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

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

    E-Print Network [OSTI]

    Chaudhuri, Soma

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

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

    E-Print Network [OSTI]

    Ezeife, Christie

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

  8. Wireless sensor for detecting explosive material

    SciTech Connect (OSTI)

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

    2014-10-28T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Wu, Jie

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

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

    E-Print Network [OSTI]

    Chandra, Surendar

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

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

    E-Print Network [OSTI]

    Gong, Nan-Wei

    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 ...

  12. Constrained Flow Optimization with Applications to Data Gathering in Sensor Networks

    E-Print Network [OSTI]

    Prasanna, Viktor K.

    ]. In this paper, we study the energy efficiency of data gathering in the WSNs from an algorithmic perspective.edu Abstract. We focus on data gathering problems in energy-constrained wireless sensor networks. We study a unified framework to study a variety of data gathering problems in sensor net- works. The efficiency

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

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

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

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

    E-Print Network [OSTI]

    Jagannatham, Aditya K.

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

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

    E-Print Network [OSTI]

    2011-03-04T23:59:59.000Z

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

  16. Self-powered wireless sensor system using MEMS piezoelectric micro power generator (PMPG)

    E-Print Network [OSTI]

    Xia, YuXin, M.B.A. Sloan School of Management.

    2006-01-01T23:59:59.000Z

    A thin-film lead zirconate titanate, Pb(Zr,Ti)03, MEMS Piezoelectric Micro Power Generator (PMPG) has been integrated with a commercial wireless sensor node (Telos), to demonstrate a self-powered RF temperature sensor ...

  17. Enabling Long-Lived Sensor Networks Through Solar Energy Harvesting

    E-Print Network [OSTI]

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

    2005-01-01T23:59:59.000Z

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

  18. On the robustness of clustered sensor networks

    E-Print Network [OSTI]

    Cho, Jung Jin

    2009-05-15T23:59:59.000Z

    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...

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

    E-Print Network [OSTI]

    Sirer, Emin Gun

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

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

    E-Print Network [OSTI]

    Nemat-Nasser, Sia

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

  1. Underwater Data Collection Using Robotic Sensor Networks

    E-Print Network [OSTI]

    Hollinger, Geoffrey A.

    We examine the problem of utilizing an autonomous underwater vehicle (AUV) to collect data from an underwater sensor network. The sensors in the network are equipped with acoustic modems that provide noisy, range-limited ...

  2. Sensor network localization based on natural phenomena

    E-Print Network [OSTI]

    Kim, Daniel Sang

    2006-01-01T23:59:59.000Z

    Autonomous localization is crucial for many sensor network applications. The goal of this thesis is to develop a distributed localization algorithm for the PLUG indoor sensor network by analyzing sound and light sensory ...

  3. Adaptive sampling in autonomous marine sensor networks

    E-Print Network [OSTI]

    Eickstedt, Donald Patrick

    2006-01-01T23:59:59.000Z

    In this thesis, an innovative architecture for real-time adaptive and cooperative control of autonomous sensor platforms in a marine sensor network is described in the context of the autonomous oceanographic network scenario. ...

  4. Energy efficient sensor network implementations

    SciTech Connect (OSTI)

    Frigo, Janette R [Los Alamos National Laboratory; Raby, Eric Y [Los Alamos National Laboratory; Brennan, Sean M [Los Alamos National Laboratory; Kulathumani, Vinod [WEST VIRGINIA UNIV.; Rosten, Ed [CAMBRIDGE UNIV.; Wolinski, Christophe [IRISA; Wagner, Charles [IRISA; Charot, Francois [IRISA

    2009-01-01T23:59:59.000Z

    In this paper, we discuss a low power embedded sensor node architecture we are developing for distributed sensor network systems deployed in a natural environment. In particular, we examine the sensor node for energy efficient processing-at-the-sensor. We analyze the following modes of operation; event detection, sleep(wake-up), data acquisition, data processing modes using low power, high performance embedded technology such as specialized embedded DSP processors and a low power FPGAs at the sensing node. We use compute intensive sensor node applications: an acoustic vehicle classifier (frequency domain analysis) and a video license plate identification application (learning algorithm) as a case study. We report performance and total energy usage for our system implementations and discuss the system architecture design trade offs.

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

    E-Print Network [OSTI]

    Kondis, Lisimachos Paul

    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

  6. Energy Modeling of Wireless Sensor Nodes Based on Petri Nets Ali Shareef, Yifeng Zhu

    E-Print Network [OSTI]

    Zhu, Yifeng

    Energy Modeling of Wireless Sensor Nodes Based on Petri Nets Ali Shareef, Yifeng Zhu Department step for the design of energy saving strategies. This paper develops a detailed probabilistic model based on Petri nets to evaluate the energy consumption of a wireless sensor node. The model factors

  7. Vehicle Re-Identification using Wireless Magnetic Sensors: Algorithm Revision, Modifications and Performance Analysis

    E-Print Network [OSTI]

    Horowitz, Roberto

    Vehicle Re-Identification using Wireless Magnetic Sensors: Algorithm Revision, Modifications, CA 94305, US. Email: ram.rajagopal@stanford.edu Abstract--A vehicle re-identification method based on match- ing vehicle signatures obtained from wireless magnetic sensors was studied on a single lane loop

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

    E-Print Network [OSTI]

    De Micheli, Giovanni

    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

  9. 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]

    Hamilton, Michael P.

    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

  10. Explicit congestion indication for TCP over wireless networks

    E-Print Network [OSTI]

    Shishir

    2012-06-07T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Adve, Raviraj

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

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

    E-Print Network [OSTI]

    Liang, Weifa

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

  13. Energy-Efficient Capacity Optimization in Wireless Networks

    E-Print Network [OSTI]

    Wang, Yu

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

  14. Network Electricity Use Associated with Wireless Personal Digital Assistants

    E-Print Network [OSTI]

    Kammen, Daniel M.

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

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

    E-Print Network [OSTI]

    Wichmann, Felix

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

  16. Wireless Sensors Improve Data Center Efficiency | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf TheViolations | Department ofEnergyWireless Sensors Improve

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

    E-Print Network [OSTI]

    Amir, Yair

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

  18. Radiation detection and situation management by distributed sensor networks

    SciTech Connect (OSTI)

    Jan, Frigo [Los Alamos National Laboratory; Mielke, Angela [Los Alamos National Laboratory; Cai, D Michael [Los Alamos National Laboratory

    2009-01-01T23:59:59.000Z

    Detection of radioactive materials in an urban environment usually requires large, portal-monitor-style radiation detectors. However, this may not be a practical solution in many transport scenarios. Alternatively, a distributed sensor network (DSN) could complement portal-style detection of radiological materials through the implementation of arrays of low cost, small heterogeneous sensors with the ability to detect the presence of radioactive materials in a moving vehicle over a specific region. In this paper, we report on the use of a heterogeneous, wireless, distributed sensor network for traffic monitoring in a field demonstration. Through wireless communications, the energy spectra from different radiation detectors are combined to improve the detection confidence. In addition, the DSN exploits other sensor technologies and algorithms to provide additional information about the vehicle, such as its speed, location, class (e.g. car, truck), and license plate number. The sensors are in-situ and data is processed in real-time at each node. Relevant information from each node is sent to a base station computer which is used to assess the movement of radioactive materials.

  19. 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

  20. Thermoelectric powered wireless sensors for spent fuel monitoring

    SciTech Connect (OSTI)

    Carstens, T.; Corradini, M.; Blanchard, J. [Dept. of Engineering Physics, Univ. of Wisconsin-Madison, Madison, WI 53706 (United States); Ma, Z. [Dept. of Electrical and Computer Engineering, Univ. of Wisconsin-Madison, Madison, WI 53706 (United States)

    2011-07-01T23:59:59.000Z

    This paper describes using thermoelectric generators to power wireless sensors to monitor spent nuclear fuel during dry-cask storage. OrigenArp was used to determine the decay heat of the spent fuel at different times during the service life of the dry-cask. The Engineering Equation Solver computer program modeled the temperatures inside the spent fuel storage facility during its service life. The temperature distribution in a thermoelectric generator and heat sink was calculated using the computer program Finite Element Heat Transfer. From these temperature distributions the power produced by the thermoelectric generator was determined as a function of the service life of the dry-cask. In addition, an estimation of the path loss experienced by the wireless signal can be made based on materials and thickness of the structure. Once the path loss is known, the transmission power and thermoelectric generator power requirements can be determined. This analysis estimates that a thermoelectric generator can produce enough power for a sensor to function and transmit data from inside the dry-cask throughout its service life. (authors)

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

    E-Print Network [OSTI]

    Bakshi, Bikram Singh

    1996-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Lui, John C.S.

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

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

    E-Print Network [OSTI]

    Sarkar, Saswati

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

  4. 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

  5. Handover Performance of HVAC Duct Based Indoor Wireless Networks

    E-Print Network [OSTI]

    Stancil, Daniel D.

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

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

    E-Print Network [OSTI]

    Politècnica de Catalunya, Universitat

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

  7. Roadmap Query Protocols for Sensor Network Guided Navigation in Dynamic Environments

    E-Print Network [OSTI]

    Sangeeta Bhattacharya; et al.

    Autonomous mobile entity navigation through dynamic and unknown environments is an essential part of many mission critical applications like search and rescue and fire fighting. The dynamism of the environment makes it particularly difficult to achieve navigation using just on-board sensors and existing navigation methods. This motivates the integration of wireless sensor networks with navigation. The ease of deployment of a wireless sensor network along with its capability of collecting and delivering information about the surrounding environment makes it feasible to use wireless sensor networks to aid navigation in dynamic environments. In this paper, we present integrated navigation and network query strategies that achieve good navigation performance with low network communication cost. The reduced communication cost not only increases network lifetime but also improves navigation performance by increasing network responsiveness, which is required to maintain a high degree of awareness in dynamic environments. The proposed strategies include a roadmap based navigation strategy coupled with two different query strategies called Roadmap Query (RQ) and Robust Roadmap Query (RRQ). The query strategies are optimized for the roadmap based navigation strategy, and are shown, through simulation under realistic fire scenarios, to outperform existing approaches in terms of both navigation performance and communication cost. We also present a mobile agent based implementation of RQ and provide empirical results of its performance on a Mica2 mote testbed.

  8. Context-aware energy-efficient wireless sensor architecture for body activity recognition

    E-Print Network [OSTI]

    Boyer, Edmond

    conditions [13], [15], [16], and the usage of devices with higher computing, storage and energy capabilitiesContext-aware energy-efficient wireless sensor architecture for body activity recognition Tifenn 60205 CompiŤgne, France Abstract--In this paper, we present EEWAA, a new Energy- Efficient Wireless

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

    E-Print Network [OSTI]

    Tentzeris, Manos

    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

  10. HandWave : design and manufacture of a wearable wireless skin conductance sensor and housing

    E-Print Network [OSTI]

    Strauss, Marc D

    2005-01-01T23:59:59.000Z

    This thesis report details the design and manufacture of HandWave, a wearable wireless Bluetooth skin conductance sensor, and dedicated housing. The HandWave collects Electrodermal Activity (EDA) data by measuring skin ...

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

    E-Print Network [OSTI]

    Aylward, Ryan P

    2006-01-01T23:59:59.000Z

    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 ...

  12. Antenna Beam Steering For Wireless Sensors Using Real Time Phase Shifter

    E-Print Network [OSTI]

    Saha, S.; Unnikrishna, U.; Khanna, P.; Al-Attar, T.

    2010-01-01T23:59:59.000Z

    As part of the increasing demand for accurate, secure and robust short range wireless sensors for Smart Grid systems, we present the design and the simulation of phased array transmitter with variable delay based phase shifters. Multiple antennas...

  13. Optimising Quality of Information in Data Collection for Mobile Sensor Networks

    E-Print Network [OSTI]

    Flener, Pierre

    , such as carbon monoxide (CO), carbon dioxide (CO2), and nitrogen dioxide (NO2). Cameras could be deployed the density of wireless sensors or the underlying network infrastructure. Coupled with the low cost and almost Technology, Box 337, SE­75105 Uppsala, Sweden Email: {Farshid.Hassani, Pierre.Flener, Edith.Ngai, Justin

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

    E-Print Network [OSTI]

    Chen, Yiling

    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

  15. Wireless Industrial Monitoring and Control using a Smart Sensor Platform

    E-Print Network [OSTI]

    California at Los Angeles, University of

    . Prabhu and Rajit Gadh Wireless Internet for the Mobile Enterprise Consortium University of California

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

    E-Print Network [OSTI]

    Hassanzadeh, Amin

    2014-05-03T23:59:59.000Z

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

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

    E-Print Network [OSTI]

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

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

    E-Print Network [OSTI]

    Hassan-Ali, Mudhafar

    2007-01-01T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

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

    E-Print Network [OSTI]

    Johansson, Karl Henrik

    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

  1. 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

  2. Optimize Storage Placement in Sensor Networks

    E-Print Network [OSTI]

    Li, Qun

    of limited storage, communication capacity, and battery power is ameliorated. Placing storage nodesOptimize Storage Placement in Sensor Networks Bo Sheng, Member, IEEE, Qun Li, Member, IEEE, and Weizhen Mao Abstract--Data storage has become an important issue in sensor networks as a large amount

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

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

  4. Technology Development: Wireless Sensors and Controls BT0201 Review of Energy Scavenging Schemes and Recommended Order of Investigation

    SciTech Connect (OSTI)

    DeSteese, John G.; Olsen, Larry C.; Schienbein, Lawrence A.

    2004-09-01T23:59:59.000Z

    This report reviews the characteristics of four candidate concepts that extract and convert ambient energy to provide electrical power for wireless sensors.

  5. academic digital repositories: Topics by E-print Network

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

    and Information Sciences Websites Summary: in wireless sensor networks for PCSSCADA. In: Proceedings of the 1st International ICST Conference on Sensor Forward &...

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

    E-Print Network [OSTI]

    Tseng, Yu-Chee

    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

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

    E-Print Network [OSTI]

    Modiano, Eytan H.

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

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

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

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

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

    E-Print Network [OSTI]

    Sarkar, Saswati

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

  10. Portable Wireless Sensors for Object Usage Sensing in the Home: Challenges and Practicalities

    E-Print Network [OSTI]

    with creating such "object usage" sensors. We describe the existing technologies used to recognize object usage these applications, researchers require an object usage sensing technology that allows them to easily enterPortable Wireless Sensors for Object Usage Sensing in the Home: Challenges and Practicalities

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

    E-Print Network [OSTI]

    Sikdar, Biplab

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

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

    E-Print Network [OSTI]

    Correll, Nikolaus

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

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

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

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

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

    E-Print Network [OSTI]

    Chen, Yuanzhu Peter

    Report on a Working Session on Security in Wireless Ad Hoc Networks Levente Butty¬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

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

    E-Print Network [OSTI]

    Jiang, Hai

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

  16. 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

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

    SciTech Connect (OSTI)

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

    2004-01-01T23:59:59.000Z

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

  18. Localized Minimum-Energy Broadcasting for Wireless Multihop Networks

    E-Print Network [OSTI]

    Stojmenovic, Ivan

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

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

    E-Print Network [OSTI]

    Jia, Xiaohua

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

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

    E-Print Network [OSTI]

    Leung, Kin K.

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

  1. Ivan Stojmenovic 1 Wireless Sensor Networks

    E-Print Network [OSTI]

    Stojmenovic, Ivan

    · Temperature, Chemicals · Light, Vibrations, Motion · Seismic data, Acoustic data · strain, torque, load Stojmenovic 7 Applications.. more.. Habitat monitoring UCLA Environment Agriculture Pollution Meteorological

  2. GINSENG: Performance Control in Wireless Sensor Networks

    E-Print Network [OSTI]

    Roedig, Utz

    MAC, 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, safety and pollution supervision in the GALP oil refinery. Within this refinery, there are approximately

  3. Ferry-Based Linear Wireless Sensor Networks

    E-Print Network [OSTI]

    Wu, Jie

    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

  4. Distributed A Wireless Sensor Network for

    E-Print Network [OSTI]

    . . . . . . . . . . . . . . . . . . . . . . . . 11 4.3.1 Transmission Lines . . . . . . . . . . . . . . . . . . . . . . 12 4.3.2 Microstrip Lines

  5. Robust Clock Synchronization in Wireless Sensor Networks

    E-Print Network [OSTI]

    Saibua, Sawin

    2010-10-12T23:59:59.000Z

    , 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...

  6. Distributed Spatial Analysis in Wireless Sensor Networks

    E-Print Network [OSTI]

    Fernandes, Alvaro A. A.

    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

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

    E-Print Network [OSTI]

    Saksupakul, Rattanachai

    2007-05-18T23:59:59.000Z

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

  8. Configurable dynamic privacy for pervasive sensor networks

    E-Print Network [OSTI]

    Gong, Nan-Wei

    2009-01-01T23:59:59.000Z

    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 ...

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

    E-Print Network [OSTI]

    Lui, John C.S.

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

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

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

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

  11. Query Processing in Mobile Sensor Networks Wang-Chien Lee

    E-Print Network [OSTI]

    Giles, C. Lee

    , 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

  12. Cognitive Radio Networks as Sensor Networks

    E-Print Network [OSTI]

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

    2007-01-01T23:59:59.000Z

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

  13. 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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

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

  15. [1] Self-organizing sensor networks with reconfigurable smart components. Auburn University, SensIT web site http://www.eng.auburn.edu/users/lim/sensit.html. [ bib | .html

    E-Print Network [OSTI]

    Briesemeister, Linda

    . Doherty. Algorithms for position and data recovery in wireless sensor networks. Master's thesis, UC schemes is reported. Blind correlation methods are found to provide meager compression while semi-blind

  16. Online, In-Situ Monitoring Combustion Turbines Using Wireless Passive Ceramic Sensors

    SciTech Connect (OSTI)

    Gong, Xun; An, Linan; Xu, Chengying

    2013-06-30T23:59:59.000Z

    The overall objective of this project is to develop high-temperature wireless passive ceramic sensors for online, real-time monitoring combustion turbines. During this project period, we have successfully demonstrated temperature sensors up to 1300{degrees}C and pressure sensors up to 800oC. The temperature sensor is based on a high-Q-factor dielectric resonator and the pressure sensor utilizes the evanescent-mode cavity to realize a pressure-sensitive high-Q-factor resonator. Both sensors are efficiently integrated with a compact antenna. These sensors are wirelessly interrogated. The resonant frequency change corresponding to either temperature or pressure can be identified using a time-domain gating technique. The sensors realized in this project can survive harsh environments characterized by high temperatures (>1000{degrees}C) and corrosive gases, owing to the excellent material properties of polymer-derived ceramics (PDCs) developed at University of Central Florida. It is anticipated that this work will significantly advance the capability of high-temperature sensor technologies and be of a great benefit to turbine industry and their customers.

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

    E-Print Network [OSTI]

    Bystroff, Chris

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

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

    E-Print Network [OSTI]

    Sarkar, Saswati

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

  19. Wireless Relay Networks for Green Environment Professor Zbigniew Dziong

    E-Print Network [OSTI]

    Huang, Jianwei

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

  20. Reliable Packet Transmissions in Multipath Routed Wireless Networks

    E-Print Network [OSTI]

    Valaee, Shahrokh

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

  1. Reliable Packet Transmissions in Multipath Routed Wireless Networks

    E-Print Network [OSTI]

    Valaee, Shahrokh

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

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

    E-Print Network [OSTI]

    de Veciana, Gustavo

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

  3. Optimizing Communication Energy Consumption in Perpetual Wireless Nanosensor Networks

    E-Print Network [OSTI]

    Weigle, Michele

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

  4. BAAP: Blackhole Attack Avoidance Protocol for Wireless Network

    E-Print Network [OSTI]

    Dharmaraja, S.

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

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

    E-Print Network [OSTI]

    Braun, Torsten

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

  6. Jamming-Aware Minimum Energy Routing in Wireless Networks

    E-Print Network [OSTI]

    Goeckel, Dennis L.

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

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

    E-Print Network [OSTI]

    Holte, Robert

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

  8. Experimental Investigations into TCP Performance over Wireless Multihop Networks

    E-Print Network [OSTI]

    Kawadia, Vikas

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

  9. Video Source Identification in Lossy Wireless Networks Shaxun Chen

    E-Print Network [OSTI]

    California at Davis, University of

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

  10. Energy Efficient Scheduling with Power Control for Wireless Networks

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

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

    E-Print Network [OSTI]

    Abdi, Ali

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

  13. A Distributed Wearable, Wireless Sensor System for Evaluating Professional

    E-Print Network [OSTI]

    Lapinski, Michael Tomasz

    This paper introduces a compact, wireless, wearable system that measures signals indicative of forces, torques and other descriptive and evaluative features that the human body undergoes during bursts of extreme physical ...

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

    E-Print Network [OSTI]

    Fang, Xi; Xue, Guoliang

    2011-01-01T23:59:59.000Z

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

  15. Issues in autonomous mobile sensor networks

    E-Print Network [OSTI]

    Dharne, Avinash Gopal

    2009-05-15T23:59:59.000Z

    moni- toring, surveillance, search and rescue, and emergency management [9]-[15]. For example, one application for mobile sensor networks is in offshore oil and gas ex- ploration and condition monitoring. It is envisaged that a team of autonomous... another example of a network would be the ?Dominator? UAV network being envisaged by the USAF for surveillance, monitor- ing and engagement of targets on a cluttered battlefield [16]. A human in the loop provides initial directives to a group of agents...

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

    SciTech Connect (OSTI)

    Daniel Sexton

    2008-03-28T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Zemen, Thomas

    , New Jersey, USA Dept. of ECE, Polytechnic Inst. of NYU, New York, USA Abstract--This work addresses1 Energy-Neutral Source-Channel Coding in Energy-Harvesting Wireless Sensors P. Castiglione, O the problem of energy alloca- tion over source processing and transmission for a single energy- harvesting

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

    E-Print Network [OSTI]

    Simeone, Osvaldo

    , New Jersey, USA Dept. of ECE, Polytechnic Inst. of NYU, New York, USA Abstract--This work addressesEnergy-Neutral Source-Channel Coding in Energy-Harvesting Wireless Sensors P. Castiglione, O the problem of energy allo- cation over source compression and transmission for a single energy

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

    E-Print Network [OSTI]

    Arabshahi, Payman

    Maximizing Lifetime in an Energy Constrained Wireless Sensor Array Using Team Optimization of Cooperating Systems Robert J. Marks II, Arindam K. Das, Mohamed El-Sharkawi Department of Electrical trees to do this. For a known node constellation, the maximum lifetime of a single tree is equal

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

    E-Print Network [OSTI]

    Kwak, Juhyoun

    -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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    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

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

    E-Print Network [OSTI]

    Gburzynski, Pawel

    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

  3. A Reconfigurable Active Retrodirective/Direct Conversion Receiver Array for Wireless Sensor Systems

    E-Print Network [OSTI]

    Itoh, Tatsuo

    A Reconfigurable Active Retrodirective/Direct Conversion Receiver Array for Wireless Sensor Systems retrodirective/direct conversion receiver array is presented. The system can serve as both a retrodirective array transponder and a direct conversion receiver simply by changing the frequency of the LO applied to the mixers

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

    E-Print Network [OSTI]

    Tentzeris, Manos

    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

  5. An Energy-Efficient Broadcasting Scheme for Unsynchronized Wireless Sensor MAC Protocols

    E-Print Network [OSTI]

    Braun, Torsten

    An Energy-Efficient Broadcasting Scheme for Unsynchronized Wireless Sensor MAC Protocols Philipp, Switzerland Abstract--In the past couple of years, many Energy-Efficient Medium Access Control (E2 -MAC of energy-efficiency in case of unicast point-to-point transmissions, they yet lack an efficient solution

  6. Empirical Modelling and Simulation of Transmission Loss between Wireless Sensor Nodes

    E-Print Network [OSTI]

    Atkinson, Robert C

    ; channel model; gas turbine engine I. INTRODUCTION Testing of gas turbine engines currently demands the useEmpirical Modelling and Simulation of Transmission Loss between Wireless Sensor Nodes in Gas a grid of hypothetical WSN node locations on the surface of a gas turbine engine are reported for eight

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

    E-Print Network [OSTI]

    Markopoulou, Athina

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

  8. E-Print Network 3.0 - alpha cluster states Sample Search Results

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

    of Wireless Sensor Networks via Unequal Clustering Summary: head is similar. IV NETWORK MODEL As stated previously, the positions of the cluster head nodes... section to...

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

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

  10. E-Print Network 3.0 - actuated impact device Sample Search Results

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

  11. Cooperative UAV-Based Communications Backbone for Sensor Networks

    SciTech Connect (OSTI)

    Roberts, R S

    2001-10-07T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Pappas, George J.

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

  13. Adaptive coherent interferometric imaging for sensor networks Gregoire Derveauxa)

    E-Print Network [OSTI]

    Papanicolaou, George C.

    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

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

    E-Print Network [OSTI]

    Shi, Xiaomeng

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

  15. Multiagent coordination in microgrids via wireless networks

    E-Print Network [OSTI]

    Hao Liang; Atef Abdrabou

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

  16. Wireless networks and mobile Ivan Stojmenovic

    E-Print Network [OSTI]

    Stojmenovic, Ivan

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

  17. Multiagent Coordination in Microgrids via Wireless Networks

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

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

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

    E-Print Network [OSTI]

    Park, Seung-Jong "Jay"

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

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

    E-Print Network [OSTI]

    Ramkumar, Mahalingam

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

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

    E-Print Network [OSTI]

    Hemmers, Oliver

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

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

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

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

    E-Print Network [OSTI]

    Belding-Royer, Elizabeth M.

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

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

    E-Print Network [OSTI]

    Morrell, Darryl

    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

  4. Universal Wireless Event Monitoring System

    E-Print Network [OSTI]

    Yambem, Lamyanba

    2012-10-19T23:59:59.000Z

    of remote query sensor systems have been investigated and various products have been developed for sensing different applications like water leakage, temperature, pressure, gas, diaper wetting etc [2-7]. The wireless link in these systems which is needed...-9]. One of the means of remote query sensing is the direct measurement of impedance of antenna which is wirelessly connected to the sensor. By measuring the impedance of the antenna using instrument like Impedance analyzer or network analyzer, the exact...

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

    E-Print Network [OSTI]

    2010-12-20T23:59:59.000Z

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

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

    E-Print Network [OSTI]

    Wichmann, Felix

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

  7. A single sediment-Microbial Fuel Cell powering a wireless telecommunication system Yohann R. J. Thomas a

    E-Print Network [OSTI]

    Paris-Sud XI, Universitť de

    1 A single sediment-Microbial Fuel Cell powering a wireless telecommunication system Yohann R. J Abstract We report the ability of a single sediment-Microbial Fuel Cell (MFC) to power wireless sensor, with no membrane or artificial catalysts. Key words: Sediment-Microbial Fuel Cell; Sensor Networks; Wireless

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

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

    the cost of sensors by improving the technology-specifically, through the use of advanced manufacturing techniques, including printable electronics and additive roll-to-roll...

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

    SciTech Connect (OSTI)

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

    2006-11-01T23:59:59.000Z

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

  10. Wireless Networks A Cross-layer Perspective

    E-Print Network [OSTI]

    Libre de Bruxelles, Université

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

  11. Energy Balanced Chain in Distributed Sensor Networks

    E-Print Network [OSTI]

    Howitt, Ivan

    Energy Balanced Chain in Distributed Sensor Networks Ivan Howitt Electrical & Computer Engineering because of their higher traffic. This paper suggests an energy balanced chain (EBC) which can efficiently the energy balance optimization problem in terms of the segmentation space. By adjusting the transmission

  12. Explicit Sensor Network Localization using Semidefinite ...

    E-Print Network [OSTI]

    2010-01-29T23:59:59.000Z

    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 =.

  13. Designing Self-Sustainable Photovoltaic Sensor Network

    E-Print Network [OSTI]

    California at Berkeley, University of

    , 2006 #12;2 Target Environment · Outdoor application ­ Wired power and battery has limitations. ­ Solar for power saving. ­ Power saving for single-hop is trivial. #12;3 Related Work on Solar Powered Sensor #12;4 Goals · Power saving for multi-hop networks under solar energy source. ­ Solar Energy: time

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

    E-Print Network [OSTI]

    Kolner, Brian H.

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

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

    E-Print Network [OSTI]

    Liang, Weifa

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

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

    E-Print Network [OSTI]

    Heidemann, John

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

  17. Energy harvesting and wireless energy transmission for powering SHM sensor nodes

    SciTech Connect (OSTI)

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

    2009-01-01T23:59:59.000Z

    In this paper, we present a feasibility study of using energy harvesting and wireless energy transmission systems to operate SHM sensor nodes. The energy harvesting approach examines the use of kinetic energy harvesters to scavenge energy from the ambient sources. Acceleration measurements were made on a bridge, and serve as the basis for a series of laboratory experiments that replicate these sources using an electromagnetic shaker. We also investigated the use of wireless energy transmission systems to operate SHM sensor nodes. The goal of this investigation is to develop SHM sensing systems which can be permanently embedded in the host structure and do not require on-board power sources. This paper summarizes considerations needed to design such systems, experimental procedures and results, and additional issues that can be used as guidelines for future investigations.

  18. Homogeneous vs Heterogeneous Clustered Sensor Networks: A Comparative Study

    E-Print Network [OSTI]

    Rosenberg, Catherine P.

    1 Homogeneous vs Heterogeneous Clustered Sensor Networks: A Comparative Study Vivek Mhatre elected, serve for the entire lifetime of the network) in a homoge- neous network, it is evident

  19. Underwater Sensor Networking: Research Challenges and Potential Applications

    E-Print Network [OSTI]

    Heidemann, John

    synchronization, and localization protocols for high- latency acoustic networks, long-duration network sleeping SCADA systems, but in- creasingly with more rapidly deployed sensor networks [39]. Advances in reducing

  20. Multi-Resolution Storage and Search in Sensor Networks

    E-Print Network [OSTI]

    Ganesan, Deepak; Greenstein, Ben; Estrin, D; Heidemann, John; Govindan, Ramesh

    2007-01-01T23:59:59.000Z

    users of a micro-climate monitoring network [Hamilton 2004]Fig. 21. Micro-climate monitoring sensor network deploymentNetworks Table I. Data Requirement Estimates for Scienti?c Applications Application Building Health Monitoring [Kohler] Micro-