To cooperate or not to cooperate: detection strategies in sensor networks

This paper is an initial investigation into the following question: can cooperation among sensors in a sensor network improve detection performance in a simple hypothesis test? We analyze a simple cooperative system using the Kullback-Leibler (KL) discrimination distance and a quantity known as the...

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Bibliographic Details
Main Authors: Lexa, M.A., Rozell, C.J., Sinanovic, S., Johnson, D.H.
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Cooperative systems
Degradation
Detectors
Exact sciences and technology
Information analysis
Information processing
Intelligent networks
Sensor fusion
Sensor systems
System performance
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Testing
Transmission and modulation (techniques and equipments)
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Summary:This paper is an initial investigation into the following question: can cooperation among sensors in a sensor network improve detection performance in a simple hypothesis test? We analyze a simple cooperative system using the Kullback-Leibler (KL) discrimination distance and a quantity known as the information transfer ratio which is a ratio of KL distances. We discover that, asymptotically, gain over a non-cooperative system depends on the conditional KL distance. We conclude with an illustrative example which demonstrates that cooperation not only significantly improves performance but can also degrade it.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2004.1326676