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dc.contributor.authorLameiro Gutiérrez, Christian 
dc.contributor.authorSantamaría Caballero, Luis Ignacio 
dc.contributor.authorSchreier, Peter J.
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2018-02-02T19:21:21Z
dc.date.available2018-02-02T19:21:21Z
dc.date.issued2017-03
dc.identifier.issn0090-6778
dc.identifier.issn1558-0857
dc.identifier.otherTEC2013-47141-C4-3-Res_ES
dc.identifier.otherTEC2016-75067-C4-4-Res_ES
dc.identifier.urihttp://hdl.handle.net/10902/12988
dc.description.abstractThis paper provides a complete characterization of the boundary of an achievable rate region, called the Pareto boundary, of the single-antenna Z interference channel (Z-IC), when interference is treated as noise and users transmit complex Gaussian signals that are allowed to be improper. By considering the augmented complex formulation, we derive a necessary and sufficient condition for improper signaling to be optimal. This condition is stated as a threshold on the interference channel coefficient, which is a function of the interfered user rate and which allows insightful interpretations into the behavior of the achievable rates in terms of the circularity coefficient (i.e., degree of impropriety). Furthermore, the optimal circularity coefficient is provided in closed form. The simplicity of the obtained characterization permits interesting insights into when and how improper signaling outperforms proper signaling in the single-antenna Z-IC. We also provide an in-depth discussion on the optimal strategies and the properties of the Pareto boundary.es_ES
dc.description.sponsorshipThe work of C. Lameiro and P. J. Schreier was supported by the German Research Foundation (DFG) under grant SCHR 1384/6-1. The work of I. Santamaría was supported by the Ministerio de Economía y Competitividad (MINECO), Spain, under projects RACHEL (TEC2013-47141-C4-3-R) and CARMEN (TEC2016-75067-C4-4-R).es_ES
dc.format.extent13 p.es_ES
dc.language.isoenges_ES
dc.publisherInstitute of Electrical and Electronics Engineerses_ES
dc.rights© 2017 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.es_ES
dc.sourceIEEE Transactions on Communications, 2017, 65(3), 1022-1034es_ES
dc.subject.otherImproper signalinges_ES
dc.subject.otherZ interference channeles_ES
dc.subject.otherPareto boundaryes_ES
dc.titleRate region boundary of the SISO Z-interference channel with improper signalinges_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherVersionhttps://doi.org/10.1109/TCOMM.2016.2641948es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1109/TCOMM.2016.2641948
dc.type.versionacceptedVersiones_ES


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