Title :
Theoretical analysis and measurement results of vegetation effects on path loss for mobile cellular communication systems
Author :
Bello, Julio Cesar R Dal ; Siqueira, Gláucio L. ; Bertoni, Henry L.
Author_Institution :
Dept. of Telecommun. Eng., Fed. Fluminense Univ., Rio de Janeiro, Brazil
fDate :
7/1/2000 12:00:00 AM
Abstract :
This paper reports on studies of propagation in an urban forested park area to investigate the statistical nature of the time fading for frequencies ranging from 0.9 GHz to 1.8 GHz, as well as to examine the range dependence and the base station height gain. Measurements of the received signal over 30 s intervals for a stationary mobile were used to construct the distribution functions for the fading. In most cases, the distribution could be approximated by a Rician distribution, whose K-factor was found to depend on transmitter height
Keywords :
Rician channels; UHF radio propagation; cellular radio; 0.9 to 1.8 GHz; K-factor; Rician distribution; UHF; base station height gain; distribution functions; fading; mobile cellular communication systems; path loss; range dependence; received signal; stationary mobile; time fading; transmitter height; urban forested park area; vegetation effects; Antenna accessories; Antenna measurements; Base stations; Communication systems; Fading; Frequency; Loss measurement; Propagation losses; Rician channels; Vegetation;
Journal_Title :
Vehicular Technology, IEEE Transactions on
