Title :
The influence of trees on radio channels at frequencies of 3 and 5 GHz
Author :
Karlsson, A. ; Schuh, R.E. ; Bergljung, C. ; Karlsson, P. ; Löwendahl, N.
Author_Institution :
Telia Res. AB, Malmo, Sweden
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper presents radio channel characterisation at 3.1 and 5.8 GHz with the radio path obstructed by trees. Measurements were carried out by means of a broadband channel analyser. Using different signal combining methods, the path loss, delay interval and delay spread are investigated for summer- and wintertime. The measurement results show that the trunks and branches of the trees can give up to 10 dB increase in path loss over short distances
Keywords :
broadband networks; delays; fading channels; losses; microwave propagation; radio access networks; 3.1 GHz; 5.8 GHz; branches; broadband channel analyser data; delay interval; delay spread; fixed radio access; path loss; radio channels; radio path; signal combining methods; summer; trees; trunk; winter; Antenna measurements; Bandwidth; Broadband antennas; Delay; Frequency; Horn antennas; Radio transmitters; Receivers; Receiving antennas; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957096
