Desempenho de enlace VLC com Modulação OOK e OFDM sob Condições Adequadas de Iluminação

David Esteban Farfán, Paulo de Tarso Neves Jr., Alexandre Pohl

DOI: 10.14209/sbrt.2021.1570724189

Evento: XXXIX Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2021)

Keywords: Comunicação em luz visível LED Fotodiodo Interior

Abstract

Visible light communications (VLC) transmit data through light emitting diodes. In this work, a VLC communication system is implemented with a commercial lamp composed of 7 white LEDs. The system includes the design-assembly of the electronic circuits of the transmission and reception front-ends. The different simulations carried out for an indoor environment show that VLC systems can transmit data while also maintaining the adequate lighting condition. OOK and OFDM modulations are used for the data transmission (BER ≤ 10 −3 for distances up to d ≥ 1, 7 m). To characterize the illumination condition, photoradiometric measurements are made, ensuring adequate lighting up to 1,6 m.

Download