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dc.contributor.authorNarmanlıoğlu, Ömer
dc.contributor.authorUysal, Murat
dc.date.accessioned2021-06-16T11:53:58Z
dc.date.available2021-06-16T11:53:58Z
dc.date.issued2020
dc.identifier.isbn978-172815089-5
dc.identifier.urihttp://hdl.handle.net/10679/7440
dc.identifier.urihttps://ieeexplore.ieee.org/document/9148729
dc.description.abstractBuilding on the existing illumination infrastructure, visible light communication (VLC) utilizes light emitting diode (LED) luminaries as wireless access points. The presence of large number of ceiling lights in conference halls, classrooms and similar public places makes possible the implementation of massive multiple-input multiple-output (MIMO) VLC systems in a distributed manner. In order to obtain the full benefits of massive MIMO communications, channel state information must be available at transmitter side. Estimation of downlink channel through pilot signals, if not judiciously designed, requires huge pilot overhead and makes the implementation of massive MIMO system infeasible. In our study, we address the design of massive MIMO VLC systems with a limited number of pilot signals. We explore different pilot arrangements in spatial, frequency, and time domains where interpolation is performed to obtain global channel matrix taking advantage of the indoor environment geometry and layout of luminaries. We consider direct current biased orthogonal frequency division multiplexing as the basis of physical layer and present simulation results to demonstrate the achievable spectral efficiencies for pilot signal arrangements under consideration.en_US
dc.description.sponsorshipTÜBİTAK
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.relation.ispartofICC 2020 - 2020 IEEE International Conference on Communications (ICC)
dc.rightsrestrictedAccess
dc.titleLimited feedback channel estimation for multi-user massive mimo visible light communicationsen_US
dc.typeConference paperen_US
dc.publicationstatusPublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0001-5945-0813 & YÖK ID 124615) Uysal, Murat
dc.contributor.ozuauthorUysal, Murat
dc.identifier.doi10.1109/ICC40277.2020.9148729en_US
dc.relation.tubitakinfo:turkey/grantAgreement/TUBITAK/215E311
dc.subject.keywordsMassive MIMOen_US
dc.subject.keywordsOFDMen_US
dc.subject.keywordsPilot arrangementen_US
dc.subject.keywordsBeamformingen_US
dc.subject.keywordsVisible light communicationsen_US
dc.identifier.scopusSCOPUS:2-s2.0-85089417107
dc.contributor.ozugradstudentNarmanlıoğlu, Ömer
dc.contributor.authorMale2
dc.relation.publicationcategoryConference Paper - International - Institutional Academic Staff and PhD Student


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