PERFORMANCE ANALYSIS OF VISIBLE LIGHT COMMUNICATION (VLC) SYSTEM BY DIFFERENT MODULATION TECHNIQUES

Visible light communication (VLC) has drawn additional attention in recent years. it’s because of the explanation that the prevailing light-weight sources for lighting application in home, workplace and streets have vast quantity of information measure and that they will deliver electronic communication at higher bit rates. During this paper, analyzed the visible radiation communication performance with mach Zehnder Modulation and Orthogonal frequency division multiplexing (OFDM) modulation exploitation Opti system simulation tool. The performance of the visible radiation Communication system is calculable through Quality issue and Bit Error Rate (BER) values for various link distances. Orthogonal frequency division multiplexing modulation has additionally important impact on communication sector now-a-days because of its physiological condition to the signal distortion and support for higher rate. White light-emitting diode is employed as supply for our VLC system and it’s driven by OFDM modulated signal. OFDM modulation performance is best compared to MZ modulation in terms of link distance and knowledge rates.