TY - GEN
T1 - Distributed SNR estimation using constant modulus signaling over Gaussian multiple-access channels
AU - Banavar, Mahesh K.
AU - Tepedelenlioglu, Cihan
AU - Spanias, Andreas
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - A sensor network is used for distributed SNR estimation. Sensors observe a signal embedded in noise. These observations are phase modulated using a constant-modulus scheme and transmitted over a Gaussian multiple-access channel to a fusion center. At the fusion center, the location parameter and scale parameter are estimated using a minimum-variance estimator as well as computationally simple alternatives. Performance evaluated using the asymptotic variance of the estimators shows that the computationally simple estimators have the same asymptotic performance as the minimum-variance estimators. The optimal phase transmission parameters are also determined for different sensing noise distributions. Simulation results corroborate analytical results.
AB - A sensor network is used for distributed SNR estimation. Sensors observe a signal embedded in noise. These observations are phase modulated using a constant-modulus scheme and transmitted over a Gaussian multiple-access channel to a fusion center. At the fusion center, the location parameter and scale parameter are estimated using a minimum-variance estimator as well as computationally simple alternatives. Performance evaluated using the asymptotic variance of the estimators shows that the computationally simple estimators have the same asymptotic performance as the minimum-variance estimators. The optimal phase transmission parameters are also determined for different sensing noise distributions. Simulation results corroborate analytical results.
KW - Asymptotic Analysis
KW - Covariance Matrix
KW - Distributed Estimation
KW - SNR Estimation
KW - Wireless Sensor Networks
UR - http://www.scopus.com/inward/record.url?scp=79954532702&partnerID=8YFLogxK
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U2 - 10.1109/DSP-SPE.2011.5739181
DO - 10.1109/DSP-SPE.2011.5739181
M3 - Conference contribution
AN - SCOPUS:79954532702
SN - 9781612842271
T3 - 2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011 - Proceedings
SP - 24
EP - 29
BT - 2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011 - Proceedings
T2 - 2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011
Y2 - 4 January 2011 through 7 January 2011
ER -