Propagation modelling in virtual environments, characterization of mobile propagation channel

This paper presents results of wave propagation simulations to obtain characterization of radio communication channel in urban and forest environments. The modelling in urban environments is aimed at simulation of received field coming from reflections from building facades with various roughnesses. In this case the result is in the form of time series as the receiver moves along the building surface. The values of received multipath power for individual transmitter elevations are presented. The part dealing with the vegetation scattering is aimed at simulating the received field in the presence of trees. The results obtained are the specific attenuation of a tree canopy and scattering component of the received field. Time series of received field along tree-lined road is shown.