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Lights and Shadows: A Comprehensive Survey on Cooperative and Precoding Schemes to Overcome LOS Blockage and Interference in Indoor VLC

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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.authorGenovés Guzmán, Borja
dc.contributor.authorGil Jiménez, Víctor Pedro
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2021-05-18T11:57:49Z
dc.date.available2021-05-18T11:57:49Z
dc.date.issued2021-01-28
dc.description.abstractVisible light communications (VLC) have received significant attention as a way of moving part of the saturated indoor wireless traffic to the wide and unregulated visible optical spectrum. Nowadays, VLC are considered as a suitable technology, for several applications such as high-rate data transmission, supporting internet of things communications or positioning. The signal processing originally derived from radio-frequency (RF) systems such as cooperative or precoding schemes can be applied to VLC. However, its implementation is not straightforward. Furthermore, unlike RF transmission, VLC present a predominant line-of-sight link, although a weak non-LoS component may appear due to the reflection of the light on walls, floor, ceiling and nearby objects. Blocking effects may compromise the performance of the aforementioned transmission schemes. There exist several surveys in the literature focused on VLC and its applications, but the management of the shadowing and interference in VLC requires a comprehensive study. To fill this gap, this work introduces the implementation of cooperative and precoding schemes to VLC, while remarking their benefits and drawbacks for overcoming the shadowing effects. After that, the combination of both cooperative and precoding schemes is analyzed as a way of providing resilient VLC networks. Finally, we propose several open issues that the cooperative and precoding schemes must face in order to provide satisfactory VLC performance in indoor scenarios.en
dc.description.sponsorshipThis work has been supported partially by Spanish National Project TERESA-ADA(TEC2017-90093-C3-2-R) (MINECO/AEI/FEDER, UE), the research project GEOVEOLUZ-CM-UC3Mfunded by the call “Programa de apoyo a la realización de proyectos interdisciplinares de I+D parajóvenes investigadores de la Universidad Carlos III de Madrid 2019-2020” under the frame ofthe Convenio Plurianual Comunidad de Madrid-Universidad Carlos III de Madrid and projectMadrid Flight on Chip (Innovation Cooperative Projects Comunidad of Madrid - HUBS 2018/MadridFlightOnChip). Additionally, it has been supported partially by the Juan de la CiervaIncorporación grant IJC2019-040317-I and Juan de la Cierva Formación grant (FJC2019-039541-I/AEI/10.13039/501100011033).en
dc.identifier.bibliographicCitationCéspedes MM, Guzmán BG, Jiménez VPG. Lights and Shadows: A Comprehensive Survey on Cooperative and Precoding Schemes to Overcome LOS Blockage and Interference in Indoor VLC. Sensors. 2021; 21(3):861.
dc.identifier.doihttps://doi.org/10.3390/s21030861
dc.identifier.issn1424-8220
dc.identifier.publicationfirstpage861
dc.identifier.publicationissue3
dc.identifier.publicationtitleSensors
dc.identifier.publicationvolume21
dc.identifier.urihttps://hdl.handle.net/10016/32668
dc.identifier.uxxiAR/0000026851
dc.language.isoeng
dc.publisherMDPI
dc.relation.projectIDGobierno de España. TEC2017-90093-C3-2-R
dc.rights© 2021 by the authors
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/
dc.subject.ecienciaTelecomunicacioneses
dc.subject.otherVLCen
dc.subject.otherIndooren
dc.subject.otherCooperative schemesen
dc.subject.otherPrecodingen
dc.subject.otherLoS blockageen
dc.titleLights and Shadows: A Comprehensive Survey on Cooperative and Precoding Schemes to Overcome LOS Blockage and Interference in Indoor VLCen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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