Exploiting Mobility for Energy Efficient Data Collection in Wireless Sensor Networks |
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Authors: | Sushant Jain Rahul C Shah Waylon Brunette Gaetano Borriello Sumit Roy |
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Affiliation: | (1) Computer Science and Engineering, University of Washington, Box 352350, Seattle, WA, 98195;(2) University of California, 2108 Allston Way, Suite 200, Berkeley, CA, 94704;(3) Department of Electrical Engineering, University of Washington, Box 352500, Seattle, WA, 98195 |
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Abstract: | We analyze an architecture based on mobility to address the problem of energy efficient data collection in a sensor network.
Our approach exploits mobile nodes present in the sensor field as forwarding agents. As a mobile node moves in close proximity
to sensors, data is transferred to the mobile node for later depositing at the destination. We present an analytical model
to understand the key performance metrics such as data transfer, latency to the destination, and power. Parameters for our
model include: sensor buffer size, data generation rate, radio characteristics, and mobility patterns of mobile nodes. Through
simulation we verify our model and show that our approach can provide substantial savings in energy as compared to the traditional
ad-hoc network approach.
Sushant Jain is a Ph.D. candidate in the Department of Computer Science and Engineering at the University of Washington. His research
interests are in design and analysis of routing algorithms for networking systems. He received a MS in Computer Science from
the University of Washington in 2001 and a B.Tech degree in Computer Science from IIT Delhi in 1999.
Rahul C. Shah completed the B. Tech (Hons) degree from the Indian Institute of Technology, Kharagpur in 1999 majoring in Electronics and
Electrical Communication Engineering. He is currently pursuing his Ph.D. in Electrical Engineering at the University of California,
Berkeley. His research interests are in energy-efficient protocol design for wireless sensor/ad hoc networks, design methodology
for protocols and next generation cellular networks.
Waylon Brunette is a Research Engineer in the Department of Computer Science and Engineering at the University of Washington. His research
interests include mobile and ubiquitous computing, wireless sensor networks, and personal area networks. Currently, he is
engaged in collaborative work with Intel Research Seattle to develop new uses for embedded devices and RFID technologies in
ubiquitous computing. He received a BS in Computer Engineering from the University of Washington in 2002.
Gaetano Borriello is a Professor in the Department of Computer Science and Engineering at the University of Washington. His research interests
are in embedded and ubiquitous computing, principally new hardware devices that integrate seamlessly into the user’s environment
with particular focus on location and identification systems. His principal projects are in creating manageable RFID systems
that are sensitive to user privacy concerns and in context-awareness through sensors distributed in the environment as well
as carried by users.
Sumit Roy received the B. Tech. degree from the Indian Institute of Technology (Kanpur) in 1983, and the M. S. and Ph. D. degrees from
the University of California (Santa Barbara), all in Electrical Engineering in 1985 and 1988 respectively, as well as an M.
A. in Statistics and Applied Probability in 1988. His previous academic appointments were at the Moore School of Electrical
Engineering, University of Pennsylvania, and at the University of Texas, San Antonio. He is presently Prof, of Electrical
Engineering, Univ. of Washington where his research interests center around analysis/design of communication systems/networks,
with a topical emphasis on next generation mobile/wireless networks. He is currently on academic leave at Intel Wireless Technology
Lab working on high speed UWB radios and next generation Wireless LANs. His activities for the IEEE Communications Society
includes membership of several technical committees and TPC for conferences, and he serves as an Editor for the IEEE Transactions
on Wireless Communications. |
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Keywords: | simulations stochastic processes system design |
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