Design of LDPC codes for two-way relay systems with physical-layer network coding

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dc.citation.epage2359en_US
dc.citation.issueNumber12en_US
dc.citation.spage2356en_US
dc.citation.volumeNumber17en_US
dc.contributor.authorTanc, A. K.en_US
dc.contributor.authorDuman, T. M.en_US
dc.contributor.authorTepedelenlioglu, C.en_US
dc.date.accessioned2016-02-08T11:03:53Z
dc.date.available2016-02-08T11:03:53Z
dc.date.issued2013en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractThis letter presents low-density parity-check (LDPC) code design for two-way relay (TWR) systems employing physical-layer network coding (PLNC). We focus on relay decoding, and propose an empirical density evolution method for estimating the decoding threshold of the LDPC code ensemble. We utilize the proposed method in conjunction with a random walk optimization procedure to obtain good LDPC code degree distributions. Numerical results demonstrate that the specifically designed LDPC codes can attain improvements of about 0.3 dB over off-the-shelf LDPC codes (designed for point-to-point additive white Gaussian noise channels), i.e., it is new code designs are essential to optimize the performance of TWR systems.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T11:03:53Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2013en
dc.identifier.doi10.1109/LCOMM.2013.111113.132134en_US
dc.identifier.issn1089-7798
dc.identifier.urihttp://hdl.handle.net/11693/26719
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/LCOMM.2013.111113.132134en_US
dc.source.titleIEEE Communications Lettersen_US
dc.subjectDensity evolutionen_US
dc.subjectAdditive white Gaussian noise channelen_US
dc.subjectDegree distributionsen_US
dc.subjectDensity evolutionen_US
dc.subjectLow-density parity-check (LDPC) codesen_US
dc.subjectOptimization proceduresen_US
dc.subjectPhysical-layer network codingen_US
dc.subjectRelay channelsen_US
dc.subjectTwo-way relay systemsen_US
dc.subjectDecodingen_US
dc.subjectDesignen_US
dc.subjectForward error correctionen_US
dc.subjectNetwork codingen_US
dc.subjectOptimizationen_US
dc.titleDesign of LDPC codes for two-way relay systems with physical-layer network codingen_US
dc.typeArticleen_US

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