DocumentCode :
1392810
Title :
A propagation prediction tool for urban mobile radio systems
Author :
Kanatas, Athanasios G. ; Constantinou, Philip
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Volume :
49
Issue :
4
fYear :
2000
fDate :
7/1/2000 12:00:00 AM
Firstpage :
1348
Lastpage :
1355
Abstract :
This paper presents a propagation prediction tool (PPT), developed mainly to facilitate the path loss computation in urban environments. Based on analytical methods-geometrical optics (GOs), physical optics (POs), and uniform theory of diffraction (UTD)-the tool incorporates an empirical factor, the path loss factor n, used in all unobstructed paths between two points to remedy the deficiencies of the analytical models. Ray tracing techniques were used to model the flow of electromagnetic energy from the transmitter to the receiver. The received field strength is computed by complex vector addition of the fields arriving at the receiver by any of the mechanisms utilized. Path loss results are given for line-of-sight (LOS) and non-line-of-sight (NLOS) cases, indicating the contribution from each mechanism. Finally, comparisons with measured data for DECT systems in urban sites are presented, in order to validate the prediction tool
Keywords :
UHF radio propagation; cordless telephone systems; geometrical theory of diffraction; land mobile radio; physical optics; ray tracing; 1890 MHz; DECT; GO; LOS; NLOS; PO; UHF; UTD; complex vector addition; electromagnetic energy; geometrical optics; line-of-sight case; nonline-of-sight case; path loss computation; path loss factor; physical optics; propagation prediction tool; ray tracing; received field strength; uniform theory of diffraction; urban mobile radio systems; Analytical models; Computer vision; Land mobile radio; Optical losses; Optical propagation; Optical receivers; Optical transmitters; Physical optics; Physical theory of diffraction; Propagation losses;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/25.875256
Filename :
875256
Link To Document :
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