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dc.contributor.authorArdakani, Maryam Haghighi
dc.contributor.authorUysal, Murat
dc.date.accessioned2017-02-09T08:20:51Z
dc.date.available2017-02-09T08:20:51Z
dc.date.issued2017
dc.identifier.issn1536-1276en_US
dc.identifier.urihttp://hdl.handle.net/10679/4779
dc.identifier.urihttp://ieeexplore.ieee.org/document/7738576/
dc.description.abstractUltraviolet (UV) communication enables non-line-of-sight (NLOS) outdoor wireless connectivity and is particularly desirable to relax or eliminate pointing and tracking requirements of infrared links. In comparison to infrared counterparts, UV links are subject to relatively higher path loss as well as intersymbol interference resulting from frequency selective nature of the channel. In this paper, we propose the powerful combination of relay-assisted transmission and multi-carrier architecture based on orthogonal frequency division multiplexing (OFDM). Specifically, we consider a cooperative diversity system with orthogonal cooperation protocol and use DC-biased optical OFDM as the underlying physical layer. We consider both amplify-and-forward (AF) and detect-and-forward (DF) relaying. We investigate the error rate performance of the proposed relay-assisted OFDM UV system under consideration and demonstrate performance gains over point-to-point OFDM UV systems. We further determine optimal power allocation schemes to improve the performance. We also propose a variable-rate UV OFDM system and improve system throughput via bit loading.en_US
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.relation.ispartofIEEE Transactions on Wireless Communicationsen_US
dc.rightsrestrictedAccess
dc.titleRelay-assisted OFDM for ultraviolet communications: performance analysis and optimizationen_US
dc.typeArticleen_US
dc.peerreviewedyesen_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.volume16en_US
dc.identifier.issue1en_US
dc.identifier.wosWOS:000393876200046
dc.identifier.doi10.1109/TWC.2016.2626438en_US
dc.subject.keywordsOptical wireless communicationen_US
dc.subject.keywordsUltraviolet communicationen_US
dc.subject.keywordsOFDMen_US
dc.subject.keywordsCooperative transmissionen_US
dc.identifier.scopusSCOPUS:2-s2.0-85009804112
dc.contributor.ozugradstudentArdakani, Maryam Haghighi
dc.contributor.authorMale1
dc.contributor.authorFemale1


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