Attempts to reduce the interference level and to increase the spectral efficiency of cellular radio communication systems operating in dense urban and suburban areas lead to the microcellular approach with a consequent requirement to lower antenna heights. In large metropolitan areas having high buildings this requirement causes a situation where the transmitting and receiving antennas are both located below the rooftops, and the city street acts as a type of a waveguiding channel for the propagating signal. In this work, the city street is modeled as a random multislit waveguide with randomly distributed regions of foliage parallel to the building boundaries. The statistical propagation characteristics are expressed in terms of multiple ray - fields approaching the observer. Algorithms for predicting the path - loss along the waveguide and for computing the transverse field structure are presented.
ASJC Scopus subject areas
- Condensed Matter Physics
- Earth and Planetary Sciences(all)
- Electrical and Electronic Engineering