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dc.contributor.authorLameiro Gutiérrez, Christian 
dc.contributor.authorSantamaría Caballero, Luis Ignacio 
dc.contributor.authorUtschick, Wolfgang
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2016-11-02T14:11:38Z
dc.date.available2016-11-02T14:11:38Z
dc.date.issued2014
dc.identifier.isbn978-1-4799-2894-1
dc.identifier.isbn978-1-4799-2893-4
dc.identifier.isbn978-1-4799-2892-7
dc.identifier.otherTEC2010-19545-C04-03es_ES
dc.identifier.otherCSD2008-00010es_ES
dc.identifier.urihttp://hdl.handle.net/10902/9439
dc.description.abstractIn this paper, a cognitive radio (CR) scenario comprised of a secondary interference channel (IC) and a primary point-to-point link (PPL) is studied, when the former interferes the latter. In order to satisfy a given rate requirement at the PPL, typical approaches impose an interference temperature constraint (IT).When the PPL transmits multiple streams, however, the spatial structure of the interference comes into play. In such cases, we show that spatial interference shaping constraints can provide higher sum-rate performance to the IC while ensuring the required rate at the PPL. Then, we extend the interference leakage minimization algorithm (MinIL) to incorporate such constraints. An additional power control step is included in the optimization procedure to improve the sum-rate when the interference alignment (IA) problem becomes infeasible due to the additional constraint. Numerical examples are provided to illustrate the effectiveness of the spatial shaping constraint in comparison to IT when the PPL transmits multiple data streams.es_ES
dc.description.sponsorshipThe research leading to these results has received funding from the Spanish Government (MICINN) under projects TEC2010-19545-C04-03 (COSIMA), CONSOLIDER-INGENIO 2010 CSD2008-00010 (COMONSENS), and FPU Grant AP2010-2189. This research has been funded by the Deutsche Forschungsgemeinschaft (DFG) under the grant Ut36/15-1.es_ES
dc.format.extent5 p.es_ES
dc.language.isoenges_ES
dc.publisherIEEEes_ES
dc.rights© 2014 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 International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014), Florence, Italy, 2014, 7313-7317es_ES
dc.subject.otherCognitive radioes_ES
dc.subject.otherInterference alignmentes_ES
dc.subject.otherInterference channeles_ES
dc.subject.otherInterference temperaturees_ES
dc.titleInterference shaping constraints for underlay MIMO interference channelses_ES
dc.typeinfo:eu-repo/semantics/conferenceObjectes_ES
dc.relation.publisherVersionhttps://doi.org/10.1109/ICASSP.2014.6855020es_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1109/ICASSP.2014.6855020
dc.type.versionacceptedVersiones_ES


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