PREDICTION OF MOBILE RADIO-WAVE PROPAGATION OVER BUILDINGS OF IRREGULAR HEIGHTS AND SPACINGS

Two models of mobile radio wave propagation over buildings are present ed. The first, the Flat Edge model, provides a simple get accurate rep resentation when buildings are assumed to be of constant height and sp acing. The second model combines the first with a rapid new method of calculating multiple edge diffraction to allow deterministic predictio ns with arbitrary buildings and spacings. This allows predictions to b e made with real building data, and the effect of building variations on location variability of the received signal to be assessed. Both mo dels are compared with measurements made in suburban areas in the 900 and 1800 MHz bands and excellent agreement is obtained.