Mismatched multi-letter successive decoding for the multiple-access channel

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• dc.contributor.author Scarlett, Jonathan
• dc.contributor.author Martínez, Alfonso, 1973-
• dc.contributor.author Guillén i Fábregas, A. (Albert)
• dc.date.accessioned 2021-06-29T08:10:42Z
• dc.date.available 2021-06-29T08:10:42Z
• dc.date.issued 2018
• dc.description.abstract This paper studies channel coding for the discrete memoryless multiple-access channel with a given (possibly suboptimal) decoding rule. A multi-letter successive decoding rule depending on an arbitrary non-negative decoding metric is considered, and achievable rate regions and error exponents are derived both for the standard MAC (independent codebooks), and for the cognitive MAC (one user knows both messages) with superposition coding. In the cognitive case, the rate region and error exponent are shown to be tight with respect to the ensemble average. The rate regions are compared with those of the commonly considered decoder that chooses the message pair maximizing the decoding metric, and numerical examples are given for which successive decoding yields a strictly higher sum rate for a given pair of input distributions.
• dc.description.sponsorship This work was supported in part by the European Research Council through ERC under Grant 259663 and Grant 725411, in part by the European Union’s 7th Framework Programme under Grant 303633, and in part by the Spanish Ministry of Economy and Competitiveness under Grant RYC-2011-08150, Grant TEC2012-38800-C03-03, and Grant TEC2016-78434-C3-1-R
• dc.format.mimetype application/pdf
• dc.identifier.citation Scarlett J, Martinez A, Guillén i Fàbregas A. Mismatched multi-letter successive decoding for the multiple-access channel. IEEE Trans Inf Theory. 2018;64(4):2253-66. DOI: 10.1109/TIT.2017.2781363
• dc.identifier.doi http://dx.doi.org/10.1109/TIT.2017.2781363
• dc.identifier.issn 0018-9448
• dc.identifier.uri http://hdl.handle.net/10230/47999
• dc.language.iso eng
• dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
• dc.relation.ispartof IEEE Transactions on Information Theory. 2018;64(4):2253-66
• dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/259663
• dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/725411
• dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/303633
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/RYC-2011-08150
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/TEC2012-38800-C03-03
• dc.relation.projectID info:eu-repo/grantAgreement/ES/1PE/TEC2016-78434-C3-1-R
• dc.rights © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. http://dx.doi.org/10.1109/TIT.2017.2781363
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.subject.keyword Mismatched decoding
• dc.subject.keyword Multiple-access channel
• dc.subject.keyword Successive decoding
• dc.subject.keyword Channel capacity
• dc.subject.keyword Error exponents
• dc.title Mismatched multi-letter successive decoding for the multiple-access channel
• dc.type info:eu-repo/semantics/article
• dc.type.version info:eu-repo/semantics/acceptedVersion