Volume : 5, Issue : 9, September - 2016

BER performance of M-ary FSK on AWGN & Fading (Rayleigh & Rician) channels

Kavya Srivastava, Sonu Lal

Abstract :

<p>&nbsp;It is our primary need today to achieve the higher data rates in limited spectrum bandwidth to improve the performance of signals. In this paper we analyze various M-ary FSK modulation schemes using simulink model of MATLAB taking BER as measure of performance when the system is subjected to AWGN and fading channel. Based on these performances a modulation scheme and channel is suggested that provides low BER at low received SNR. The simulation results for these methods show that the performance of the system is good in case of AWGN channel as compared to other fading channels. Multipath fading is the very important factors that affect the performance of a communication system. Simulations are used to compare the performance and tradeoffs of M- ary techniques, including analysis of BER in the presence of Additive White Gaussian Noise (AWGN) and multipath fading environment. The performance of different M-ary FSK methods are comparing for various types of the fading channels using the MATLAB simulation.</p>