DocumentCode :
859247
Title :
Architectural features and urban propagation
Author :
Dimitriou, Antonis G. ; Sergiadis, George D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Aristotle Univ. of Thessaloniki
Volume :
54
Issue :
3
fYear :
2006
fDate :
3/1/2006 12:00:00 AM
Firstpage :
774
Lastpage :
784
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 field
Keywords :
electromagnetic wave scattering; geometrical theory of diffraction; radiocommunication; radiowave propagation; EM wave scattering; UTD; architectural feature; building facade; electromagnetic radiation; orthogonal wedge; power distribution pattern; radiocoverage measurement; roadside foliage influence; uniform geometrical theory-of-diffraction; urban propagation modeling; wireless communication system; Buildings; Frequency; Light scattering; Physical theory of diffraction; Power measurement; Predictive models; Radio transmitters; Ray tracing; Windows; Wireless communication; Diffraction; propagation modeling; radiocoverage; ray tracing; uniform geometrical theory of diffraction (UTD); urban areas;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2006.869919
Filename :
1603803
Link To Document :
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