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OFDM based visible light broadcasting systems

Abstract

Visible light communication (VLC) involves the use of light emitting diode (LED)- based illumination infrastructure for communication purposes [1]. Recent experimental studies on VLC have demonstrated data speeds more than 3 Gigabits per second [2]. Although indoor spaces usually have more than one light source, most of the existing works on VLC in the current literature consider point-topoint communication and few efforts have been made on the scenarios with multiple transmitters. In this work, we consider a broadcasting scenario in which multiple transmitters (light sources) simultaneously emit the same information using orthogonal frequency division multiplexing (OFDM)

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