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On Capacity Analysis of Continuous Alphabet Channels

机译:连续字母通道的容量分析

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摘要

In this paper, we address an analytical framework for capacity analysis of continuous alphabet channels with side information at the receiver. We study the mutual information function and some of its analytical properties such as strict concavity and continuity. For this purpose, we use the weak topology and establish necessary and sufficient conditions for strict concavity and continuity of the mutual information based on the weak topology. We then raise the issue of capacity analysis and address necessary and sufficient conditions for the existence, uniqueness, and the expression of capacity-achieving measure.
机译:在本文中,我们提出了一个分析框架,用于分析在接收器处带有辅助信息的连续字母通道的容量。我们研究了互信息功能及其某些分析属性,例如严格的凹度和连续性。为此,我们使用弱拓扑,并基于弱拓扑为相互信息的严格凹度和连续性建立必要和充分的条件。然后,我们提出能力分析的问题,并针对存在,唯一性和表达能力获得度量的条件,解决必要和充分的条件。

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