Abstract
Nonlinear channels with non-Gaussian noise where the transmitted signal is a random function of the input signal are considered. Under some assumptions on smoothness and the behavior of tails of the noise density function, higher-order asymptotics of the mutual information between the input and output signals in such channels is obtained, as the mean power of the input signal (or, equivalently, the signal-to-noise ratio) goes to zero.
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Prelov, V.V., van der Meulen, E.C. Higher-Order Asymptotics of Mutual Information for Nonlinear Channels with Non-Gaussian Noise. Problems of Information Transmission 39, 324–340 (2003). https://doi.org/10.1023/B:PRIT.0000011271.44336.b2
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DOI: https://doi.org/10.1023/B:PRIT.0000011271.44336.b2