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Spatially Coupled Protograph-Based LDPC Codes for Decode-and-Forward in Erasure Relay Channel Hironori UCHIKAWA Kenta KASAI Kohichi SAKANIWA Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E94-A No.11 pp.2127-2134 Publication Date: 2011/11/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E94.A.2127 Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Coding Theory Keyword: spatially coupled codes, protograph-based LDPC codes, relay, erasure channel, Full Text: PDF(510.2KB)>>
Summary: 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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