TY - GEN
T1 - Decentralized CUSUM change detection
AU - Moustakides, George V.
PY - 2006
Y1 - 2006
N2 - We consider the problem of decentralized change detection using the CUSUM test. More than one sensors acquire independent signals and send their quantized version to a fusion center that uses this information to detect a simultaneous change in all sensors. By introducing a recurrence relation that defines the optimum performance of the CUSUM test for given quantization, we further optimize this measure with respect to the quantization scheme. We compare the resulting optimum test with a simple, asynchronous one shot strategy, where each sensor performs a local CUSUM test and communicates with the fusion center only once to signal its detection.
AB - We consider the problem of decentralized change detection using the CUSUM test. More than one sensors acquire independent signals and send their quantized version to a fusion center that uses this information to detect a simultaneous change in all sensors. By introducing a recurrence relation that defines the optimum performance of the CUSUM test for given quantization, we further optimize this measure with respect to the quantization scheme. We compare the resulting optimum test with a simple, asynchronous one shot strategy, where each sensor performs a local CUSUM test and communicates with the fusion center only once to signal its detection.
KW - CUSUM
KW - Change detection
KW - Decentralized detection
UR - http://www.scopus.com/inward/record.url?scp=50149111358&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50149111358&partnerID=8YFLogxK
U2 - 10.1109/ICIF.2006.301578
DO - 10.1109/ICIF.2006.301578
M3 - Conference contribution
AN - SCOPUS:50149111358
SN - 1424409535
SN - 9781424409532
T3 - 2006 9th International Conference on Information Fusion, FUSION
BT - 2006 9th International Conference on Information Fusion, FUSION
T2 - 2006 9th International Conference on Information Fusion, FUSION
Y2 - 10 July 2006 through 13 July 2006
ER -