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dc.contributor.authorViñals Terrés, Roser
dc.contributor.authorMuñoz Medina, Olga
dc.contributor.authorAgustín de Dios, Adrián
dc.contributor.authorVidal Manzano, José
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationViñals, R., Muñoz, O., Agustin, A., Vidal, J. Cooperative linear precoding for multi-user MISO visible light communications. A: IEEE Global Communications Conference. "2017 IEEE Global Communications Conference (GLOBECOM): proceedings: Singapore: 4-8 December 2017". Singapur: Institute of Electrical and Electronics Engineers (IEEE), 2017.
dc.description© 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.
dc.description.abstractThis paper develops and evaluates precoding techniques for coordinated joint transmission in visible light communications (VLC). A multi-user multiple-input single-output (MISO) setup is adopted. Transmitters are equipped with light emitting diode (LED) arrays, while receivers incorporate a single photodetector (PD). We design zero forcing (ZF) linear precoders considering, as figure of merit, the weighted sumrate for multilevel pulse amplitude modulation (PAM) and take into account the optical power constraints. We present two approaches. First, we formulate the design as a convex optimization problem and find its exact solution. Second, by considering certain approximations, we find an alternative precoder that despite being suboptimal can be computed in an almost closed-form, achieving a good trade-off between performance and complexity. Finally, we demonstrate that the proposed approaches largely outperform the conventional pseudo-inverse precoding and single-user TDMA approaches
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
dc.subjectÀrees temàtiques de la UPC::Ciències de la visió::Òptica física::Llum
dc.subject.lcshOptical communications
dc.subject.lcshLight - Scattering
dc.subject.otherVisible light communications
dc.subject.otherMulti-user multiple-input single-output
dc.subject.otherAdaptive modulation
dc.subject.otherZero forcing
dc.subject.otherWeighted sum-rate maximization
dc.titleCooperative linear precoding for multi-user MISO visible light communications
dc.typeConference report
dc.subject.lemacComunicacions òptiques
dc.subject.lemacLlum -- Dispersió
dc.contributor.groupUniversitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/AGAUR/PRI2010-2013/2014 SGR 60
upcommons.citation.authorViñals, R.; Muñoz, O.; Agustin, A.; Vidal, J.
upcommons.citation.contributorIEEE Global Communications Conference
upcommons.citation.publicationName2017 IEEE Global Communications Conference (GLOBECOM): proceedings: Singapore: 4-8 December 2017

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