Research on RGB Visible Light Communication Technology Based on OFDM

White LED light source is used in RGB visible light communication (VLC) technology, composed of red, green and blue, the three basic colors for data transmission. The transmission rate of RGB VLC technology has been achieved more than 10Gbps, Through improved modulation technology and reception algorithm. However, the spectrum utilization efficiency of RGB visible light communication is low. Weak anti-multipath interference ability and serious nonlinear distortion are also problems. In this paper, Orthogonal frequency division multiplexing (OFDM) technology is used. Through this technology, the data transmission rate and communication quality are improved. And the theory of RGB visible light communication technology based on OFDM is analyzed, a communication model is established, and the frequency utilization efficiency and anti-multipath interference capability of OFDM are verified by MATLAB simulation.