Turbo joint source-channel coding of non-uniform memoryless sources in the bandwidth-limited regime

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dc.contributor.authorOchoa, Idoia
dc.contributor.authorCrespo, Pedro
dc.contributor.authorSer, Javier Del
dc.contributor.authorHernaez, Mikel
dc.contributor.institutionIA
dc.date.accessioned2024-07-24T12:01:30Z
dc.date.available2024-07-24T12:01:30Z
dc.date.issued2010-04
dc.description.abstractThis letter proposes a novel one-layer coding/ shaping scheme with single-level codes and sigma-mapping for the bandwidth-limited regime. Specifically, we consider nonuniform memoryless sources sent over AWGN channels. At the transmitter, binary data are encoded by a Turbo code composed of two identical RSC (Recursive Systematic Convolutional) encoders. The encoded bits are randomly interleaved and modulated before entering the sigma-mapper. The modulation employed in this system follows the unequal energy allocation scheme first introduced in [1]. The receiver consists of an iterative demapping/decoding algorithm, which incorporates the a priori probabilities of the source symbols. To the authors knowledge, work in this area has only been done for the power-limited regime. In particular, the authors in [2] proposed a scheme based on a Turbo code with RSC encoders and unequal energy allocation. Therefore, it is reasonable to compare the performance with respect to the Shannon limit of our proposed bandwidthlimited regime scheme with this former power-limited regime scheme. Simulation results show that our performance is as good or slightly better than that of the system in [2].en
dc.description.sponsorshipACKNOWLEDGMENT This work was supported in part by the Spanish Ministry of Science and Innovation through the CONSOLIDER-INGENIO 2010 programme (CSD200800010, www.comonsens.org).
dc.description.statusPeer reviewed
dc.format.extent3
dc.identifier.citationOchoa , I , Crespo , P , Ser , J D & Hernaez , M 2010 , ' Turbo joint source-channel coding of non-uniform memoryless sources in the bandwidth-limited regime ' , IEEE Communications Letters , vol. 14 , no. 4 , 5439357 , pp. 336-338 . https://doi.org/10.1109/LCOMM.2010.04.092462
dc.identifier.doi10.1109/LCOMM.2010.04.092462
dc.identifier.issn1089-7798
dc.identifier.urihttps://hdl.handle.net/11556/3151
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=77950631774&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofIEEE Communications Letters
dc.relation.projectIDMinisterio de Ciencia e InnovaciĆ³n, MICINN, CSD200800010
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsBandwidth-limited regime
dc.subject.keywordsNon-uniform memoryless sources
dc.subject.keywordsSigma-mapping
dc.subject.keywordsTurbo codes
dc.subject.keywordsModeling and Simulation
dc.subject.keywordsComputer Science Applications
dc.subject.keywordsElectrical and Electronic Engineering
dc.titleTurbo joint source-channel coding of non-uniform memoryless sources in the bandwidth-limited regimeen
dc.typejournal article
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