Design and Optimization of High Speed Rayleigh-based Radiocommunication Channel Emulator

In this paper, a Colored Rayleigh Fading Noise Generator (CRNG) model adapted to hardware implementation in FPGA circuit is developed for mobile communication channel emulation. To speed up Rayleigh Noise generation the presented design is based on a reduced complexity 2 order AR filter applied to a High accuracy Box-Muller based White Gaussian Noise. The statistical properties of the designed model are investigated analytically and verified by MATLAB simulation. Optimized hardware architecture is defined and performance results are presented. INDEX-TERMS : Rayleigh Fading noise, Doppler effect, AR filtering , PDF & PDS, FPGA implementation