Architectural Features and Urban Propagation
- 6 March 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 54 (3) , 774-784
- https://doi.org/10.1109/tap.2006.869919
Abstract
Radiocoverage measurements in urban environments often unveil unexpected power distribution patterns. Architectural features seem to be the cause of this behavior, as demonstrated in this paper. We demonstrate that the elements of a typical building facade, such as windows, exterior doors, balconies and railings, should be considered as significant "sources" of EM radiation in several current wireless communication systems. We propose a method for modeling the influence of those scatterers in EM wave propagation. In our model, the major structural elements are represented by two sets of orthogonally arranged wedges. The uniform geometrical theory of diffraction is employed to calculate the scattering field. The simulation results show that such "urban" scatterers may create a dominant propagation mode in an urban canyon. Our predictions are additionally verified by experimental measurements, performed at two different sites. Finally, the influence of roadside foliage is investigated and conclusions are drawn on the resultant fieldKeywords
This publication has 28 references indexed in Scilit:
- Application of the slope diffraction method for urban microwave propagation predictionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- An improved heuristic UTD solution for multiple-edge transition zone diffractionIEEE Transactions on Antennas and Propagation, 2001
- Two-dimensional simulator for propagation in urban environmentsIEEE Transactions on Vehicular Technology, 2001
- Double diffraction at a pair of coplanar skew edgesIEEE Transactions on Antennas and Propagation, 1997
- UTD multiple-edge transition zone diffractionIEEE Transactions on Antennas and Propagation, 1997
- Diffraction at a thick screen including corrugations on the top faceIEEE Transactions on Antennas and Propagation, 1997
- Roadside tree attenuation measurements at UHF for land mobile satellite systemsIEEE Transactions on Antennas and Propagation, 1987
- Tree attenuation at 869 MHz derived from remotely piloted aircraft measurementsIEEE Transactions on Antennas and Propagation, 1986
- An attenuation function for multiple knife‐edge diffractionRadio Science, 1982
- Microwave absorption by water in building materialsBritish Journal of Applied Physics, 1964