TY - JOUR
T1 - One-bit quantizer design for multisensor GLRT fusion
AU - Fang, Jun
AU - Liu, Yumeng
AU - Li, Hongbin
AU - Li, Shaoqian
PY - 2013
Y1 - 2013
N2 - In this letter, 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 letter, 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=84873694709&partnerID=8YFLogxK
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U2 - 10.1109/LSP.2013.2243144
DO - 10.1109/LSP.2013.2243144
M3 - Article
AN - SCOPUS:84873694709
SN - 1070-9908
VL - 20
SP - 257
EP - 260
JO - IEEE Signal Processing Letters
JF - IEEE Signal Processing Letters
IS - 3
M1 - 6422327
ER -