STUDY OF COMMUNICATION IN VISIBLE LIGHT USING PIM AND PPM FORMATS FOR SIMULTANEOUS DATA TRANSMISSION
Abstract. A visible light communication system with simultaneous brightness control and data transmission is experimentally demonstrated in this paper. A pulse-width modulation (PWM) scheme is adopted for brightness control of the light-emitting diode and pulse- position modulation (PPM) superimposed on top of PWM is used for data communications. We show that independent control of light […]