To cooperate or not to cooperate: Detection strategies in sensor networks (bibtex)
by , , and
Abstract:
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.
Reference:
To cooperate or not to cooperate: Detection strategies in sensor networksM.A. Lexa, C.J. Rozell, S. Sinanovi\'c and D.H. Johnson. In Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 841–844, May 2004.
Bibtex Entry:
@INPROCEEDINGS{lexa.04,
  author = {Lexa, M.A. and Rozell, C.J. and Sinanovi{\'c}, S. and Johnson, D.H.},
  title = {To cooperate or not to cooperate: Detection strategies in sensor networks},
  booktitle = {{Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP)}},
  year = {2004},
  address = {Montreal, Canada},
  month = {May},
  pages = {841--844},
  abstract = {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.},
  url = {http://siplab.gatech.edu/pubs/lexaICASSP2004.pdf},
}
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