On the relay channel with receiver-transmitter feedback

  • Authors:
  • Shraga I. Bross;Michèle A. Wigger

  • Affiliations:
  • School of Engineering, Bar-Ilan University, Ramat Gan, Israel;Department of Electrical Engineering, ETH Zürich, Zurich, Switzerland

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2009

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Abstract

An achievable rate for the discrete memoryless relay channel with receiver-transmitter feedback is proposed based on block-Markov superposition encoding. The achievable rate can also be extended to Gaussian channels. A second achievable rate for the Gaussian relay channel based on a Schalkwijk-Kailath type scheme is presented. For some channels both achievable rates strictly improve upon all previously known achievable rates. For the discrete memoryless relay channel also a converse result is provided.