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Taking advantage of the sum of the light in outphasing technique for visible light communication transmitter

dc.contributor.authorGarcía Aller, Daniel 
dc.contributor.authorGonzález Lamar, Diego 
dc.contributor.authorFernández Miaja, Pablo 
dc.contributor.authorRodríguez Méndez, Juan 
dc.contributor.authorSebastián Zúñiga, Francisco Javier 
dc.date.accessioned2020-01-20T12:15:10Z
dc.date.available2020-01-20T12:15:10Z
dc.date.issued2021
dc.identifier.citationIEEE Journal of Emerging and Selected Topics in Power Electronics, 14(8), (2021); doi:10.1109/JESTPE.2020.2965774
dc.identifier.issn2168-6777
dc.identifier.issn2168-6785
dc.identifier.urihttp://hdl.handle.net/10651/53602
dc.description.abstractVisible Light Communication (VLC) takes advantage of the widespread use of the LEDs, and by modifying the driver stage, the LEDs are capable of lighting and transmitting information. One of the main drawbacks is the low power efficiency due to the modification of the LED driver stage in order to add the communication capability. Most of the research work related to VLC is towards the communication task, whereas there is a limited work about the improvement on the power efficiency. This paper proposes a high efficiency LED driver for VLC working as a transmitter based on the outphasing technique. This technique is used also in RF communications and increases the efficiency of the amplifiers. The proposed transmitter is made up of two switching-mode power amplifiers that reproduce the signals required for the outphasing technique and a DC/DC converter that biases the LEDs. The proposal exploits the light and, instead of being added electrically, the signals are added in their light form, which leads to a reduction in the complexity of the design. As experimental results, a transmitter was built of two Class E amplifiers reproducing a 16-QAM modulation, achieving a signal-generation efficiency of 78% and an overall efficiency of 92%
dc.description.sponsorshipThis work was supported in part by European Regional Development Fund grants, in part by the Spanish Government under project MINECO-17- DPI2016-75760-R, and in part by the Principality of Asturias under project IDI/2018/000179 and scholarship BP17-91
dc.language.isoengspa
dc.publisherIEEEspa
dc.relation.ispartofIEEE Journal of Emerging and Selected Topics in Power Electronics, 9(1)spa
dc.rights© 2021 IEEE
dc.subjectVisible Light Communication (VLC)spa
dc.subjectWireless Communicationspa
dc.subjectHigh-brightness LEDs (HB-LEDs)spa
dc.subjectClass E Amplifierspa
dc.titleTaking advantage of the sum of the light in outphasing technique for visible light communication transmitterspa
dc.typejournal articlespa
dc.identifier.doi10.1109/JESTPE.2020.2965774
dc.relation.projectIDMINECO/17- DPI2016-75760-Rspa
dc.relation.projectIDPrincipado de Asturias/IDI-2018/000179
dc.relation.publisherversionhttp://dx.doi.org/10.1109/JESTPE.2020.2965774spa
dc.rights.accessRightsopen accessspa
dc.type.hasVersionAM


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