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Conference paper

Broadcasting a message over erasure channels with cooperating receivers

Khalili, Ramin; Lasaulce, Samson; Duhamel, Pierre
  • Presented at: Allerton
  • Publication date: 2006

In this paper we consider the orthogonal cooperative broadcast channel with a common message. The downlink and cooperation channels are modelled by erasure channels and assumed to be orthogonal. We derive an achievable rate for this channel by using a combination of decode-and-forward and estimate-and-forward and considering both symmetric and asymmetric cooperation. These schemes are based on a two-step cooperation. It is shown under which conditions the proposed achievable rate coincides with the considered upper bound that is in fact the interpretation of the traditional cut-set bound in the context of broadcast cooperative erasure channels. Moreover we propose a time-sharing-based iterative coding scheme with more than two cooperation steps.

Keywords: Broadcating channels ; Cooperating receivers

Reference

  • EPFL-CONF-148829

Record created on 2010-05-19, modified on 2011-07-15

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