ECE Wireless Sensor Network Seminar

Date: Friday, February 27
Time: Noon to 1PM
Location: ****** 3609 EH  ********  (Note it is 3rd floor conference room)
Seminar web page: http://www.ece.wisc.edu/~hu/ecesensor/index.html


Distributed Detection and Classification in Wireless Sensor Networks

                  Akbar Sayeed
                   UW Madison

Wireless sensor networks are built on two vital operations:
i) distributed processing of sensed data, and ii) transport
of sensed information from one part of the network to another.
Furthermore, due to the distributed network topology, the
two operations intimately tied and their interplay is governed
by the spatio-temporal statistics of sensed data. In this talk
I will discuss the interplay between sensing and communication
in the context of distributed detection and classification
algorithms using a simple stationary Gaussian model for the
spatio-temporal signal field. This simple model yields many
useful insights. First, it helps us identify key signal field
parameters that impact the performance of classification
algorithms. Second, it provides simple guidelines for spatio-temporal
sampling to attain a desired level of performance. Third, it
dictates a structure on distributed detection and classification
algorithms that is naturally suited to the communication
(energy/bandwidth) constraints in wireless sensor networks.
Generalization to more general signal fields models will be
discussed.