OFDM Programming Simulation of Channel Fading

In this document, we discuss the main types of channel fading in OFDM programming simulations. Beyond AWGN channels and Rayleigh multipath channels, there are other significant channel fading types to consider. These include: pure multipath fading, shadow fading, combinations of multipath and shadow fading, and more. Understanding and simulating these diverse channel fading types is crucial for designing and optimizing communication systems. Therefore, when conducting OFDM programming simulations, we must account for these various channel fading types to accurately evaluate system performance and improvement methods. For implementation, code typically involves generating Rayleigh fading channels using random complex Gaussian distributions, applying Doppler spread effects with Jakes' model, and implementing AWGN through additive white Gaussian noise functions. Key MATLAB functions like `rayleighchan`, `awgn`, and custom multipath delay profile configurations are commonly employed in such simulations.