Prediction model for the characteristics of non-specular wave scattered from building surface

Wave propagation prediction models are crucial in determining propagation characteristics for any arbitrary installation on the implementation of a mobile radio communication system. The paper presents the development of simulation techniques for the estimation of wave propagation characteristics. It is based on a propagation prediction model of non-specular wave scattering from building surfaces. The method used to calculate the total field of the receiver antenna consists of four parts: calculate the far field pattern of the transmitter antenna; determine the equivalent current on the building surface; calculate the total field on the receiver antenna; obtain the multipath signal by applying ESPRIT. Numerical results show that the signal parameter profile is in good agreement with experimental results. However, a small difference is observed between the numerical and experimental results. The difference is attributed to the accuracy with which elements are discretized in the building surface roughness.