The capacity region of a multiple-access discrete memoryless channel can increase with feedback (Corresp.)

  • Authors:

  • N. Gaarder;J. Wolf

  • Affiliations:

  • -;-

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2006

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Abstract

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.