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Publicação
Consumer LED lamp with ODAC technology for high-speed visible light communications
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Orientador(es)
Resumo(s)
Optical digital-to-analog converters (ODACs) were recently proposed to mitigate the non-linear characteristic of light emitting diodes (LEDs) and to simplify the transceiver in optical wireless communication systems. This paper describes the
implementation and performance of an ODAC lamp built with commercial phosphor coated LEDs. It is shown to have sufficient performance to cope with data-rates compatible with those recommended for Ultra HD quality internet download speed (25Mbps), despite the very low bandwidth of these LEDs. Also, the structure of a low-cost and high-speed OFDM-based Visible Light Communication transceiver, based on commercial LEDs and off-the-shelf components, is presented. This solution does not require D/A conversion or complex LED driving circuitry in the transmitter, which are usually seen as limiting factors to the deployment of high-speed VLC systems in the consumer LED lighting market.
Descrição
Palavras-chave
Digital-analog conversion Driver circuits Optical transmitters Visible light communication
Contexto Educativo
Citação
M. Figueiredo, C. Ribeiro, A. Dobesch, L. N. Alves and O. Wilfert, "Consumer LED lamp with ODAC technology for high-speed visible light communications," in IEEE Transactions on Consumer Electronics, vol. 63, no. 3, pp. 285-290, August 2017, doi: 10.1109/TCE.2017.014873
Editora
Institute of Electrical and Electronics Engineers (IEEE)
Licença CC
Sem licença CC