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dc.contributor.authorChakrabarti, Arnab
de Baynast, Alexandre
Sabharwal, Ashutosh
Aazhang, Behnaam
dc.creatorChakrabarti, Arnab
de Baynast, Alexandre
Sabharwal, Ashutosh
Aazhang, Behnaam
dc.date.accessioned 2007-10-31T00:39:16Z
dc.date.available 2007-10-31T00:39:16Z
dc.date.issued 2006-02-01
dc.date.submitted 2006-03-09
dc.identifier.urihttps://hdl.handle.net/1911/19780
dc.description Journal Paper
dc.description.abstract We 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.
dc.language.iso eng
dc.subjectLDPC
Relay
User-Cooperation
Coding theory
dc.title LDPC Code-Design for the Relay Channel
dc.type Journal article
dc.citation.bibtexName article
dc.citation.journalTitle IEEE Journal in Selected Areas in Communication
dc.date.modified 2006-03-09
dc.contributor.orgCenter for Multimedia Communications (http://cmc.rice.edu/)
dc.subject.keywordLDPC
Relay
User-Cooperation
Coding theory
dc.type.dcmi Text
dc.type.dcmi Text
dc.identifier.citation A. Chakrabarti, A. de Baynast, A. Sabharwal and B. Aazhang, "LDPC Code-Design for the Relay Channel," IEEE Journal in Selected Areas in Communication, 2006.


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    Publications by Rice University Electrical and Computer Engineering faculty and graduate students

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