Asymptotic Expansions for Gaussian Channels with Feedback under a Peak Power Constraint
Silas L. Fong; Vincent Y. F. Tan · 2014 · arXiv
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Abstract (excerpt)
This paper investigates the asymptotic expansion for the size of block codes defined for the additive white Gaussian noise (AWGN) channel with feedback under the following setting: A peak power constraint is imposed on every transmitted codeword, and the average error probability of decoding the transmitted message is non-vanishing as the blocklength increases. It is well-known that the presence of feedback does not increase the first-order asymptotics (i.e., capacity) in the asymptotic expansion for the AWGN channel. The main contribution of this paper is a self-contained proof of an upper bo
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Metadata source: arXiv