Simulation of Wave Propagation in 2D sparse random media at millimeterwave frequencies

Wave Propagation in very long, 2D sparse random media composed of electrically large scatterers with high permittivity fluctuations is considered. A novel and efficient numerical coherent model is presented that can accurately track both the magnitude and phase of the scattered wave in both the forward and backward directions. The model is referred to as Statistical S-matrix for Wave Propagation in Spectral Domain (SSWaP-SD). For transnationally invariant random media, a recursive analytical expression for estimation path-loss that includes multiple scattering effects is developed. This work can be used to study propagation path-loss for millimeter wave (MMW) communication systems as well as performance assessment of a MMW SAR system (240GHz) operating under different precipitation conditions.