Decode-and-Forward Relaying via Standard AWGN Coding and Decoding

Anatoly Khina, Yuval Kochman, Uri Erez, Gregory W. Wornell

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A framework is developed for decode-and-forward-based relaying using standard coding and decoding that are good for the single-input single-output (SISO) additive white Gaussian noise channel. The framework is applicable to various scenarios and is demonstrated for several important cases. Each of these scenarios is transformed into an equivalent Gaussian multiple-input multiple-output (MIMO) common-message broadcast problem, which proves useful even when all links are SISO ones. Over the effective MIMO broadcast channel, a recently developed Gaussian MIMO common-message broadcast scheme is applied. This scheme transforms the MIMO links into a set of parallel SISO channels with no loss of mutual information, using linear pre-and post-processing combined with successive decoding. Over these resulting SISO channels, off-the-shelf scalar codes may be used.

Original languageAmerican English
Article number7368165
Pages (from-to)3547-3560
Number of pages14
JournalIEEE Transactions on Information Theory
Issue number6
StatePublished - Jun 2016

Bibliographical note

Funding Information:
A. Khina was supported in part by the Feder Family Award, in part by the Yitzhak and Chaya Weinstein Research Institute for Signal Processing, and in part by the Clore Israel Foundation. Y. Kochman was supported in part by the Israel Science Foundation under Grant 956/12. U. Erez was supported in part by ISF under Grant 1956/15. G. W.Wornell was supported in part by the Air Force Office of Scientific Research under Grant FA9550-11-1-0183 and in part by the National Science Foundation under Grant CCF-1319828.

Publisher Copyright:
© 2016 IEEE.


  • MIMO channels
  • Relay channel
  • rateless coding
  • successive interference cancellation


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