Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80455
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dc.contributorDepartment of Electronic and Information Engineering-
dc.creatorRen, H-
dc.creatorWang, ZX-
dc.creatorDu, S-
dc.creatorHe, YX-
dc.creatorChen, J-
dc.creatorHan, SY-
dc.creatorYu, CY-
dc.creatorXu, C-
dc.creatorYu, JL-
dc.date.accessioned2019-03-26T09:17:18Z-
dc.date.available2019-03-26T09:17:18Z-
dc.identifier.urihttp://hdl.handle.net/10397/80455-
dc.language.isoenen_US
dc.publisherOptical Society of Americaen_US
dc.rights© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (https://www.osapublishing.org/library/license_v1.cfm#VOR-OA)en_US
dc.rights© 2018 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.en_US
dc.rightsJournal © 2018en_US
dc.rightsThe following publication Ren, H., Wang, Z. X., Du, S., He, Y. X., Chen, J., Han, S. Y., . . . Yu, J. L. (2018). Performance improvement of NOMA visible light communication system by adjusting superposition constellation: a convex optimization approach. Optics Express, 26(23), 29796-29806 is available at https://dx.doi.org/10.1364/OE.26.029796en_US
dc.titlePerformance improvement of NOMA visible light communication system by adjusting superposition constellation : a convex optimization approachen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage29796-
dc.identifier.epage29806-
dc.identifier.volume26-
dc.identifier.issue23-
dc.identifier.doi10.1364/OE.26.029796-
dcterms.abstractNon-orthogonal multiple access (NOMA) can increase the overall spectral efficiency of visible light communication (VLC) system. In this paper, we propose a novel scheme to improve the bit error rate (BER) performance of a two-user NOMA VLC system by adjusting superposition constellation. The corresponding closed-form BER expressions are derived. Convex optimization is used to find the optimal parameters of the adjusted superposition constellation, where the overall BER is minimized. The BER performances are evaluated by theoretical analysis, Monte-Carlo (MC) simulation and experiment. The results illustrate that 8.9-dB and 8.1-dB signal-to-noise ratios (SNRs) are reduced to achieve BER of 10(-3) for the two users, whose power allocation coefficients are 0.6 and 0.4, respectively.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationOptics express, 12 Nov. 2018, v. 26, no. 23, p. 29796-29806-
dcterms.isPartOfOptics express-
dcterms.issued2018-
dc.identifier.isiWOS:000449972600017-
dc.identifier.pmid30469938-
dc.identifier.eissn1094-4087-
dc.description.validate201903 bcrc-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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