TY - GEN
T1 - One-bit quantization for multi-sensor GLRT detection of unknown deterministic signals
AU - Li, Xiaoying
AU - Fang, Jun
AU - Liu, Yumeng
AU - Li, Hongbin
PY - 2013/10/18
Y1 - 2013/10/18
N2 - In this paper, we consider a decentralized detection problem in which a number of sensor nodes collaborate to detect the presence of an unknown deterministic signal. Due to stringent power/bandwidth constraints, each sensor quantizes its local observation into one bit of information. The binary data are then sent to the fusion center (FC), where a generalized likelihood ratio test (GLRT) detector is employed to make a global decision. In this context, we study one-bit quantizer design and analyze the asymptotic performance of the one-bit GLRT detector for cases where the quantized data are sent to the FC via perfect or imperfect channels. Simulation results are carried out to corroborate our theoretical analysis and to illustrate the performance of the proposed scheme.
AB - In this paper, we consider a decentralized detection problem in which a number of sensor nodes collaborate to detect the presence of an unknown deterministic signal. Due to stringent power/bandwidth constraints, each sensor quantizes its local observation into one bit of information. The binary data are then sent to the fusion center (FC), where a generalized likelihood ratio test (GLRT) detector is employed to make a global decision. In this context, we study one-bit quantizer design and analyze the asymptotic performance of the one-bit GLRT detector for cases where the quantized data are sent to the FC via perfect or imperfect channels. Simulation results are carried out to corroborate our theoretical analysis and to illustrate the performance of the proposed scheme.
KW - Decentralized detection
KW - one-bit quantization
KW - wireless sensor networks (WSNs)
UR - http://www.scopus.com/inward/record.url?scp=84890534486&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890534486&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2013.6638461
DO - 10.1109/ICASSP.2013.6638461
M3 - Conference contribution
AN - SCOPUS:84890534486
SN - 9781479903566
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 4251
EP - 4255
BT - 2013 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2013 - Proceedings
T2 - 2013 38th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2013
Y2 - 26 May 2013 through 31 May 2013
ER -