On LDPC codes for Gaussian interference channels

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dc.citation.epage1996en_US
dc.citation.spage1992en_US
dc.contributor.authorSharifi, S.en_US
dc.contributor.authorTanç, A. K.en_US
dc.contributor.authorDuman, Tolga M.en_US
dc.coverage.spatialHonolulu, HI, USAen_US
dc.date.accessioned2016-02-08T11:46:38Z
dc.date.available2016-02-08T11:46:38Z
dc.date.issued2014en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionDate of Conference: 29 June-4 July 2014en_US
dc.descriptionConference Name: International Symposium on Information Theory, IEEE 2014en_US
dc.description.abstractIn this paper, we focus on the two-user Gaussian interference channel (GIC), and study the Han-Kobayashi (HK) coding/decoding strategy with the objective of designing low-density parity-check (LDPC) codes. A code optimization algorithm is proposed which adopts a random perturbation technique via tracking the average mutual information. The degree distribution optimization and convergence threshold computation are carried out for strong and weak interference channels, employing binary phase-shift keying (BPSK). Under strong interference, it is observed that optimized codes operate close to the capacity boundary. For the case of weak interference, it is shown that via the newly designed codes, a nontrivial rate pair is achievable, which is not attainable by single user codes with time-sharing. Performance of the designed LDPC codes are also studied for finite block lengths through simulations of specific codes picked from the optimized degree distributions.en_US
dc.identifier.doi10.1109/ISIT.2014.6875182en_US
dc.identifier.issn2157-8095en_US
dc.identifier.urihttp://hdl.handle.net/11693/27175
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/ISIT.2014.6875182en_US
dc.source.titleProceedings of the International Symposium on Information Theory, IEEE 2014en_US
dc.subjectAlgorithmsen_US
dc.subjectForward error correctionen_US
dc.subjectOptimizationen_US
dc.subjectRandom processesen_US
dc.subjectSignal interferenceen_US
dc.subjectAverage mutual informationen_US
dc.subjectCode optimizationen_US
dc.subjectDegree distributionsen_US
dc.subjectFinite block lengthen_US
dc.subjectGaussian interference channelsen_US
dc.subjectInterference channelsen_US
dc.subjectLow-density parity-check (LDPC) codesen_US
dc.subjectStrong interferenceen_US
dc.subjectCodes (symbols)en_US
dc.titleOn LDPC codes for Gaussian interference channelsen_US
dc.typeConference Paperen_US

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