Analysis of Bit Error Rate of different M-ary PSK Modulation Schemes in AWGN Channel

Abstract: The increase in multimedia services on mobile wireless communication has resulted in great advancement of the wireless communication field in the recent times. One of the widely used techniques is digital modulation technique which allows digitized data to be carried or transmitted via the analog radio frequency (RF) channels. The data transfer rate should be maximum for uninterruptable communication. But with high rate there is greater probability of error. This paper emphasizes on the error probability of M-ary PSK modulation techniques in Additive White Gaussian Noise (AWGN) Channel. In order to get a better understanding of the M-ary PSK system, a Simulink-based simulation system is designed for M-ary PSK for M= 5,6,7,8 and 9 using Matlab Simulink [8]. This paper proves that increasing of M results in increase of BER. The results are analyzed on the basis of BER plot.

Keywords: M-PSK, Bit Error Rate, Data rate, Bit energy, Signal energy, AWGN channel.