TY - GEN
T1 - Cooperative relay for decentralized detection
AU - Chen, Hao
AU - Varshney, Pramod K.
AU - Chen, Biao
PY - 2008
Y1 - 2008
N2 - We consider decentralized detection for resource-constrained wireless sensor networks where local sensor decisions need to go through a multi-hop relay network before reaching the fusion center. Our objective is to collectively design sensor decision rules and relay rules for optimum detection performance. Under the Bayesian criterion, we establish the necessary conditions for an optimal system and derive the form of the optimal fusion rule at the fusion center. Under some conditional independence assumptions, we derive the forms of the optimal local decision rules and the optimal relay rules and show that the optimal set of decision rules for the entire system can be specified by a set of parameters. We demonstrate the advantages of our proposed systematic approach against more conventional design approaches through a numerical example.
AB - We consider decentralized detection for resource-constrained wireless sensor networks where local sensor decisions need to go through a multi-hop relay network before reaching the fusion center. Our objective is to collectively design sensor decision rules and relay rules for optimum detection performance. Under the Bayesian criterion, we establish the necessary conditions for an optimal system and derive the form of the optimal fusion rule at the fusion center. Under some conditional independence assumptions, we derive the forms of the optimal local decision rules and the optimal relay rules and show that the optimal set of decision rules for the entire system can be specified by a set of parameters. We demonstrate the advantages of our proposed systematic approach against more conventional design approaches through a numerical example.
KW - Cooperative relay
KW - Distributed detection
KW - Wireless sensor network
UR - http://www.scopus.com/inward/record.url?scp=51449113378&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=51449113378&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2008.4518104
DO - 10.1109/ICASSP.2008.4518104
M3 - Conference contribution
AN - SCOPUS:51449113378
SN - 1424414849
SN - 9781424414840
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 2293
EP - 2296
BT - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
T2 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Y2 - 31 March 2008 through 4 April 2008
ER -