The Capacity Region of a Multiple-Access Discrete Memoryless Channel Can Increase with Feedback.

摘要

The capacity of a single-input single-output discrete memoryless channel is not increased by the use of a noiseless feedback link. It is shown, by example, that this is not the case for a multiple-access discrete memoryless channel. That is, it is shown that the capacity region for such a channel is enlarged if a noiseless feedback link is utilized. (Author)