Comparative Analysis of Different Modulation Techniques using ROF in Optical Communication System

Abstract

The combination of two communication methodologies in ROF has become an attractive technology for wireless and wired network and has meet the solution to ever increasing user bandwidth and wireless demands.ROF network maintain their mobility while providing them with the bandwidth for communication. ROF network provides greater geographical flexibility. Such network topology is useful in large building, subways, tunnels where many people are mobile. ROF has been used for several decades but there is still a substantial amount of work that needs to be undertaken in order to improve characteristics and capabilities. So ROF technique is proposed here. Simulation is done using opti system software. In this paper, analysis on Q factor, BER, and eye opening was done with respect to wavelength, bit rate and fibre length, and then we compared the performance analysis of PAM, FSK, PSK, DPSK and CPFSK modulation technique in ROF.