RESEARCH ON INDOOR VISIBLE LIGHT COMMUNICATION SYSTEM EMPLOYING WHITE LED LIGHTINGS

摘要

An indoor visible light communication system based on LED is proposed in this paper. In our simulation, the LED arrays are used not only for lighting sources, but also for the signal sources. A model room had been set up. The illumination of this room is uniformed by reasonable layout of LED light sources, which can meet standard requirements. Matlab is utilized for the illumination simulation. Point-to-point data transmission system is simulated by VPI software. It is found that when optical signal noise ratio was around 24dB, this proposed system has a perfect performance with bit rate up to 500Mb/s at bit error ratio of 10~(-9).