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Aligning the light without channel state information for visible light communications

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dc.affiliation.dptoUC3M. Departamento de Teoría de la Señal y Comunicacioneses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Comunicacioneses
dc.contributor.authorMorales Céspedes, Máximo
dc.contributor.authorParedes Paredes, Martha Cecilia
dc.contributor.authorGarcía-Armada, Ana
dc.contributor.authorVanderdorpe, Luc
dc.date.accessioned2020-09-23T15:40:39Z
dc.date.available2020-09-23T15:40:39Z
dc.date.issued2018-01-01
dc.description.abstractThe use of light-emitting diodes (LEDs) for ambient illumination leads to visible light communications (VLC) as a promising technology for providing both constant lighting and high-speed wireless services in indoor environments. Since multiple LED sources can be transmitted to several users, this scenario naturally forms a multiple-user multiple-input single-output system. In this sense, transmit precoding (TPC) schemes based on channel state information at the transmitter (CSIT) originally devised for radio-frequency (RF) systems have been proposed for their implementation in VLC. However, beyond providing CSIT or the need for cooperation among transmitters, which also result challenging in RF systems, there are several constraints such as the non-negativity of the transmitted signal or providing constant illumination that hamper the performance of TPC schemes in VLC. Considering these constraints, this paper explores the use of blind interference alignment (BIA) for achieving multiplexing gain without CSIT or cooperation among LED lights. To do that, we devise the concept of reconfigurable photodetector that allows switching among distinct and linearly independent channel responses. Simulation results show that the use of BIA in VLC systems schemes based on the proposed reconfigurable photodetector results suitable for VLC systems.en
dc.description.sponsorshipThis work was supported in part by the ELISA Project under Grant TEC2014-59255-C3-3-R, in part by the Belgian Programme on Interuniversity Attractive Poles Programme initiated by the Belgian Science Policy Office: IUAP P7/23 “Belgian network on stochastic modeling analysis design and optimization of communication systems” 2012–2017, in part by the Escuela Politécnica Nacional through the PIJ-16-01 Project, and in part by CEDIA through the CECIRA-IV-2016, 5G MIMO Project.en
dc.description.statusPublicadoes
dc.format.extent14
dc.identifier.bibliographicCitationIEEE Journal on Selected Areas in Communications, (2018), 36(1), pp.: 91-105.en
dc.identifier.doihttps://doi.org/10.1109/JSAC.2017.2774518
dc.identifier.issn0733-8716
dc.identifier.publicationfirstpage91
dc.identifier.publicationissue1
dc.identifier.publicationlastpage105
dc.identifier.publicationtitleIEEE Journal on Selected Areas in Communicationsen
dc.identifier.publicationvolume36
dc.identifier.urihttps://hdl.handle.net/10016/30847
dc.identifier.uxxiAR/0000025243
dc.language.isoengen
dc.publisherIEEEen
dc.relation.projectIDGobierno de España. TEC2014-59255-C3-3-R/ELISAes
dc.rights© 2017 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.en
dc.rights.accessRightsopen accessen
dc.subject.ecienciaTelecomunicacioneses
dc.subject.otherVisible light communicationsen
dc.subject.otherOptical MIMOen
dc.subject.otherPrecodingen
dc.subject.otherBlind interference alignmenten
dc.subject.otherReconfigurable photodetectoren
dc.subject.otherChannel state informationen
dc.titleAligning the light without channel state information for visible light communicationsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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