Visible light communication using wavelength division multiplexing for smart spaces

LED lights used mainly for illumination purpose, can be simultaneously used for data transmission. In this paper, a visible light communications system is proposed that employs wavelength division multiplexing, to transmit multiple data streams from different data sources simultaneously, over the wireless channel. Successful implementation of a low cost prototype system is reported. The effect of ambient noise on system performance is studied. On the basis of empirical results, performance evaluation of proposed solution is presented.