An improved model of Rayleigh fading channel with Gaussian´s PSD for aeronautical En-Route scenario

This paper proposes a novel model to describe Rayleigh flat fading channels with Gaussian power spectrum density featuring the aeronautical En-Route scenario. The presented method improves the Method of Exact Doppler Spread (MEDS)[1], which is one effective Sum-of-Sinusoids simulation modeling, by employing random processes to update the Doppler Frequency and Doppler Initial Phase for all individual sinusoids. It is shown the improved model can get a good convergence to the theory second-order statistics of real wireless communication channels, even if the number of the sinusoids employed is relatively small(i.e., N equals 8). The modified method helps to integrate a compact and area-efficient channel simulator on FPGA platform for the aeronautical En-Route scenario, which requires small number of sinusoids for simple and rapid implementation due to its high maximum Doppler Frequency and Gaussian power spectrum.