A Hybrid Optical Wireless System for Simultaneous Service of VLC and OCC

In this paper, a hybrid scheme is proposed, which allows the camera and the photodetector (PD) to receive the light signal on the same transmitter simultaneously. A high-frequency signal is received by the PD and the low-frequency signal is received by the camera. The hybrid scheme was created to simplify the lighting system when the light communication systems are deployed in the practice. The simulation and experimental results will be presented. The relationship between the data rate of two systems will also be evaluated. The experimental results show that OCC system is able to achieve the transmitting distance up to 6.4 m. Bit error rate (BER) is measured to test the ability of the system. Besides, some ideas are proposed to improved data rate for the system using PD.