Spatially Coupled LDPC Codes for Decode-and-Forward in Erasure Relay Channel

Details Spatially Coupled LDPC Codes for Decode-and-Forward in Erasure Relay Channel Spatially Coupled LDPC Codes for Decode-and-Forward in Erasure Relay Channel

2011-02-24

arxiv.org/abs/1102.5087v2

Computer Science

Information Theory

7 pages, extended version of ISIT2011

Scientific paper

We consider spatially-coupled protograph-based LDPC codes for the three terminal erasure relay channel. It is observed that BP threshold value, the maximal erasure probability of the channel for which decoding error probability converges to zero, of spatially-coupled codes, in particular spatially-coupled MacKay-Neal code, is close to the theoretical limit for the relay channel. Empirical results suggest that spatially-coupled protograph-based LDPC codes have great potential to achieve theoretical limit of a general relay channel.

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