A concavity result for output relative entropy

Devon Ding,Ken Lau,Chandra Nair, Dustin Wang

semanticscholar（2021）

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摘要

We generalize a convexity result due to Wyner and Ziv to channels with binary inputs and arbitrary outputs. This results in a convex reformulation of some non-convex optimization problems that arise naturally in multi-user information theory.

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