Social Learning in Adaptive Sensor Networks

Prof. Vikram Krishnamurthy (University of British Columbia, Canada)

APPLIED SIGNAL PROCESSING SERIES

DATE: 2012-11-02
TIME: 10:00:00 - 11:00:00
LOCATION: RSISE Seminar Room, ground floor, building 115, cnr. North and Daley Roads, ANU
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ABSTRACT:
This talk deals with decentralized information processing and Bayesian social learning in sensor networks. The aim is to show how simple local behavior can result in sophisticated global behavior thereby facilitating decentalized awareness in a sensor network.

The talk comprises of three parts. In the first part of the talk, we illustrate how the theory of global games gives a powerful method for designing decentralized data-aware sensor activation algorithms in dense sensor networks. We show that the Nash equilibrium of the sensor network has a simple threshold structure, yet the network exhibits complex global behavior. The second part of the talk considers Bayesian social learning where sensors learn from local decisions of previous sensors. We examine how such local decisions affects global decision making. Finally, we describe how decentralized adaptive filtering algorithms deployed at each sensor node can guide the global network behavior to a correlated equilibrium.

BIO:
Vikram Krishnamurthy (S'90-M'91-SM'99-F'05) was born in 1966. He received his bacheloras degree from the University of Auckland, New Zealand in 1988, and the Ph.D. from the Australian National University in 1992. He currently is a professor and Canada Research Chair at the Department of Electrical Engineering, University of British Columbia, Vancouver, BC, Canada. Dr. Krishnamurthyas current research interests include computational game theory, stochastic control in sensor networks, and stochastic dynamical systems for modeling of biological ion channels and biosensors. Dr. Krishnamurthy currently serves as Editor-in-Chief of the IEEE JOURNAL SELECTED TOPICS IN SIGNAL PROCESSING. He has served as an associate editor for several journals, including the IEEE TRANSACTIONS AUTOMATIC CONTROL and the IEEE TRANSACTIONS ON SIGNAL PROCESSING. In 2009a"2010, he served as Distinguished lecturer for the IEEE signal processing society.