Systems Seminar
Wireless Sensor Networks -- An Invitation
Ke Liu
UW ECE Department
Abstract
Wireless sensor networks represents an emerging technology that has
recently attracted intensive research interest. It consists of a
distributive network of mobile sensing nodes with wireless connectivity
that can sense, monitor or even control the surrounding environment. The
distributive nature of wireless sensor network and its associated
complexity have posed many challenging open problems for the research
community. In this talk, we will discuss some interesting aspects of
system design in terms of collaborative information and signal processing.
In particular, we will focus on the decentralized detection problem in
wireless sensor networks. We propose a novel decentralized detection
scheme based on the method of types. Contrary to conventional methods, the
proposed decentralized type detection (DTD) scheme achieves the optimal
asymptotic performance as its centralized counterpart. The key to DTD is
that the required network information flow is of vanishing entropy rate,
which solves the network communication bottleneck.
Time and Place: Wed., Feb. 11, at 3:30 pm in 4610 EH
SYSTEMS SEMINAR WEB PAGE:
http://www.cae.wisc.edu/~gubner/seminar/