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On the accuracy of the high SNR approximation of the differential entropy of signals in additive Gaussian noise
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
One approach for analyzing the high signal-to-noise ratio (SNR) capacity of non-coherent wireless communication systems is to ignore the noise component of the received signal in the computation of its differential entropy. In this paper we consider the error incurred by this approximation when the transmitter and the receiver have one antenna each, and the noise has a Gaussian distribution. For a general instance of this case, we show that the approximation error decays as 1/SNR. In addition,doi:10.1109/icassp.2014.6854702 dblp:conf/icassp/GoharyY14 fatcat:lpy4vlr4snet5ik7ljobanqwiy