Propagation model for building blockage in satellite mobile communication systems

Author

Tirkas, Panayiotis A. ; Wangsvick, Chad M. ; Balanis, Constantine A.

Author_Institution

Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA

Volume

46

Issue

7

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

991

Lastpage

997

Abstract

A propagation model for building blockage in satellite mobile communication systems is developed. This model characterizes the signal transmitted from a low-Earth orbiting (LEO) satellite when there is an obstruction in the path of the signal. The obstruction is assumed to be a man-made structure. The analysis is performed using the uniform theory of diffraction (UTD). Using this method, both single and double diffractions from the structure edges were included. Direct and reflected rays from the ground and building were also included, whenever the satellite signal was not completely obstructed. The satellite is assumed to be moving along a circular orbit while the receiver is stationary. The normalized signal level (in decibels) and the signal attenuation rate (in decibels per second) are computed. Such information is considered very useful in developing the mobile system´s hand-off algorithm

Keywords

UHF radio propagation; electromagnetic wave reflection; geometrical theory of diffraction; mobile satellite communication; 1.625 GHz; UHF; UTD; building blockage; circular orbit; direct rays; double diffraction; ground; hand-off algorithm; low-Earth orbiting satellite; normalized signal level; obstruction; propagation model; reflected rays; satellite mobile communication systems; satellite signal; signal attenuation rate; single diffraction; structure edges; uniform theory of diffraction; Artificial satellites; Attenuation; Buildings; Low earth orbit satellites; Mobile antennas; Mobile communication; Performance analysis; Physical theory of diffraction; Reflection; Solid modeling;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.704800

Filename

704800