3-D propagation modelling in microcells including terrain effects

Deterministic 3-D modelling of wave propagation in microcells has become a widely used technique. The performance of these models highly dependents on the algorithms used for path finding. In practical use, accuracy is determined on one hand by the physical model involved, on the other hand by the organisation and reliability of data base information. For the latter, a vector format is proposed. The influence of material parameters on prediction results is shown as well as the importance of terrain effects. A way to account for topography is pointed out. Results are presented with inner-city measurement data at 1870 MHz