Simulation and Modeling of Fading Gain of the Rayleigh Faded Wireless Communication Channel Using Autocorrelation Function and Doppler Spread

ABSTRACT The tenacity of this work is to have an enhanced understanding of a time varying Rayleigh faded wireless channel by simulating and modeling the fading channel gain and its autocorrelation function with consideration of Doppler spread. Methods proposed here will enable the reader to model, simulate and understand the behavior and characteristics of fading channel, characterized by Rayleigh distributions and a spread in Doppler spectrum using Clarke’s model. Simulations are performed using two methods (1) filter method and (2) spectrum method. They are then qualitatively compared using the autocorrelation function (ACF) and power spectral density (PSD).