LDPC Code-Design for the Relay Channel

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dc.citation.bibtexNamearticleen_US
dc.citation.journalTitleIEEE Journal in Selected Areas in Communicationen_US
dc.contributor.authorChakrabarti, Arnaben_US
dc.contributor.authorde Baynast, Alexandreen_US
dc.contributor.authorSabharwal, Ashutoshen_US
dc.contributor.authorAazhang, Behnaamen_US
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)en_US
dc.date.accessioned2007-10-31T00:39:16Zen_US
dc.date.available2007-10-31T00:39:16Zen_US
dc.date.issued2006-02-01en_US
dc.date.modified2006-03-09en_US
dc.date.submitted2006-03-09en_US
dc.descriptionJournal Paperen_US
dc.description.abstractWe propose LDPC code designs for the half-duplex relay channel. Our designs are derived from the information theoretic random coding scheme for decode-and-forward relaying. An important advantage of our scheme is that it is built entirely of single-user codes. The optimization of relay LDPC code profiles presents unique challenges, which are met by modifying the density evolution algorithm by introducing additional constraints for relaying. To speed up optimization, we use a Gaussian approximation of density evolution that converts the infinite dimensional code profile optimization into a simple linear programming problem. The thresholds of the discovered relay code profiles are a fraction of a dB from the achievable lower bound for decode-and-forward relaying.en_US
dc.identifier.citationA. Chakrabarti, A. de Baynast, A. Sabharwal and B. Aazhang, "LDPC Code-Design for the Relay Channel," <i>IEEE Journal in Selected Areas in Communication,</i> 2006.en_US
dc.identifier.urihttps://hdl.handle.net/1911/19780en_US
dc.language.isoengen_US
dc.subjectLDPCen_US
dc.subjectRelayen_US
dc.subjectUser-Cooperationen_US
dc.subjectCoding theoryen_US
dc.subject.keywordLDPCen_US
dc.subject.keywordRelayen_US
dc.subject.keywordUser-Cooperationen_US
dc.subject.keywordCoding theoryen_US
dc.titleLDPC Code-Design for the Relay Channelen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
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