Colloquia, Seminars and Conference News
Title : Mobility: Friend of Foe? The Case for Wireless Sensor Networks
Date : March 20, 2009. (11:00 am) Tea starts half an hour before each seminar
Location: ITEB 360
Speaker : Stefano Basagni
Abstract:
We are interested in determining how to use mobility as a blessing in wireless networks rather than coping with it as the usual curse. We explore mobility exploitation in the case of wireless sensor networks (WSNs). In particular, in this talk we show our results on the definition of analytical models and distributed protocols for determining the routes of mobile data collectors (sinks) traveling through the a network of statically deployed sensor nodes of a WSN. Routes are determined with the overall aim of maximizing the network lifetime.
First, we introduce novel mixed integer linear programming formulations for determining the sinks routes and the sojourn time at the different “sink sites.” We then propose a residual energy based heuristic protocol for sink mobility that are distributed and localized. Simulation results show that our proposed heuristics lead to improvements in network lifetime that are several times the lifetime obtainable when the sink are kept static, and that energy consumption is well balanced throughout the network. At the same time, we show how the expected increases in data latency are reasonably contained.
Bio:Stefano Basagni is associate professor of computer engineering
at Northeaster University.
He holds a Ph.D. in electrical engineering from the University
of Texas at Dallas (December 2001) and a Ph.D. in computer
science from the University of Milano, Italy (May 1998).
Dr. Basagni has published over five dozens of refereed,
highly cited technical papers and book chapters. He is
also co-editor of two books and served as a guest editor
of multiple special issues of prominent journals in the field
of wireless and mobile computing. His current research interests
range from theoretical and implementation aspects of mobile
networks and wireless communications systems, Bluetooth and
sensor networking, definition and performance evaluation of
network protocols and theoretical and practical aspects of
distributed algorithms.
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