Electromagnetic simulation and measurement of diffuse scattering from building walls

In the recent years, with the need to develop accurate propagation models for the modern wireless systems, increasing attention has been paid to the study of so-called Diffuse Scattering. This phenomenon is traditionally associated with the presence of surface roughness, whose effect on the radio signal has been widely studied in the past. However, its behavior is much more complex in real propagation environments because of the presence of very strong surface irregularities, and also volume irregularities. For this reason, in the present work some aspects still scarcely studied as the scattering in the transmission half-space (forward scattering), and the wideband behavior of diffuse scattering are investigated, with the aid of electromagnetic simulations and measurements performed in anechoic chamber on different types of materials.