Figure 6: Graph shows different plotting of BER Vs SNR of different values of variance of Phase Noise Figure shows above is the different plotting of BER Vs SNR of different values of variance of Phase Noise. Here X-axis denotes for SNR, Y-axis denotes for BER. And different values used for variance are v= 0.5, 0.7, 0.9. And for these values 3 plots have been got.