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dc.contributor.advisorDjordjevic, Ivan B.
dc.contributor.authorVangapandu, Sai Rakesh Mohan Krishna
dc.creatorVangapandu, Sai Rakesh Mohan Krishna
dc.date.accessioned2018-06-26T16:55:19Z
dc.date.available2018-06-26T16:55:19Z
dc.date.issued2018
dc.identifier.urihttp://hdl.handle.net/10150/628099
dc.description.abstractVisible light communications (VLC) technology has gained prominence in the development of high data rate transmission for the fifth generation (5G) networks. VLC technology can be used in conjunction with the existing Wi-Fi technology to improve access and data transmission. In optical wireless communications, LED transmitters are used in applications that desire mobility and the LED divergence enable larger coverage. VLC systems offer simultaneous data transmission and illumination. However, the LED’s limited modulation bandwidth and non-linear distortions pose difficulty in achieving high transmission data rates. Wavelength division multiplexing in VLC (WDM-VLC) can be used improve the data rates to meet gigabit data standards. This thesis work focuses on VLC experiments using WDM, discrete multitone modulation (DMT), and multi-input multi-output (MIMO) techniques. The VLC system is demonstrated over commercial four-color red-green-blue-amber (RGBA) LED transmitters in three cases of interest: (a) a single LED transmitter, (b) repetition encoding, and (c) spatial multiplexing. Our proposed VLC system used bit-power allocation strategies to maximize the data transmission under bit error rate (BER) threshold of 2×10-3, which is the typical hard-decision forward error correction (FEC) threshold.en_US
dc.language.isoen_USen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.subjectBERen_US
dc.subjectDMTen_US
dc.subjectMIMOen_US
dc.subjectRGBA LEDsen_US
dc.subjectVisible light communicationsen_US
dc.subjectWDMen_US
dc.titleVisible Light Communications Using Four-Color LEDsen_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.contributor.committeememberKost, Alan
dc.contributor.committeememberKilper, Dan
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineOptical Sciencesen_US
thesis.degree.nameM.S.en_US
refterms.dateFOA2018-06-26T16:55:19Z


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