Summary: 2436 IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 58, NO. 4, APRIL 2010
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On the Optimal Performance in Asymmetric Gaussian
Wireless Sensor Networks With Fading
Hamid Behroozi, Fady Alajaji, and Tamás Linder
Abstract--We study the estimation of a Gaussian source by a Gaussian
wireless sensor network (WSN) where distributed sensors transmit
noisy observations of the source through a fading Gaussian multiple access
channel to a fusion center. In a recent work Gastpar, ["Uncoded trans-
mission is exactly optimal for a Simple Gaussian Sensor Network," IEEE
Trans. Inf. Theory, vol. 54, no. 11, pp. 52475251, Nov. 2008] showed that