Multi-layer Gelfand-Pinsker strategies for the generalized multiple-access channel

Emadi, M. J ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1109/IWCIT.2013.6555750
  3. Publisher: 2013
  4. Abstract:
  5. We study a two-user state-dependent generalized multiple-access channel (GMAC) with correlated states. It is assumed that each encoder noncausally knows partial channel state information. We develop an achievable rate region by employing rate-splitting, block Markov encoding, Gelfand-Pinsker multicoding, superposition coding and jointly typical decoding. In the proposed scheme, the encoders use a partial decoding strategy to collaborate in the next block, and the receiver uses a backward decoding strategy with a joint unique decoding at each stage. Our achievable rate region includes several previously known rate regions proposed in the literature for different scenarios of multiple-access and relay channels. We finally consider a Gaussian GMAC with an additive interference which is known noncausally at both of the encoders and construct a multi-layer Costa precoding scheme that removes completely the effect of the interference
  6. Keywords:
  7. Achievable rate region ; Additive interference ; Block Markov encoding ; Decoding strategy ; Multiple access channels ; Partial channel state information ; Precoding scheme ; Super-position coding ; Communication ; Communication channels (information theory) ; Decoding
  8. Source: 2013 Iran Workshop on Communication and Information Theory ; 2013 ; 9781467350235 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6555750