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2007-11-06
Investigation of GSM Signal Variation Dry and Wet Earth Effects
By
Progress In Electromagnetics Research B, Vol. 1, 147-157, 2008
Abstract
This work proposes a site attenuation method to calculate the intensity of the field received by a mobile phone on a two-lane highway. To validate the model, radio propagation measurement was carried out through the intercity connection highway of the City of Isparta. The measurement system consisted of live radio base stations transmitting at 900 MHz and 1800 MHz. Downlink signal strength level data were collected by using TEMS test mobile phones, and were analyzed by TEMS Investigation, MapInfo and Google earth. Transmitted power-into-antenna was 14 W for both 900 MHz and 1800 MHz. Both base station sectors are facing towards the same direction having a 14 dBi gain. A proposed approximation was compared with real data. The results indicate that wet white pine trees cause 3 dB to 6 dB extra loss at 1800 MHz and about 1 dB to 3 dB extra loss at 900 MHz. Although 1800 MHz transmitter is 10 m higher, it loses its advantage in signal strength at longer distances.
Citation
Selcuk Helhel Sukru Ozen Hüseyin Göksu , "Investigation of GSM Signal Variation Dry and Wet Earth Effects," Progress In Electromagnetics Research B, Vol. 1, 147-157, 2008.
doi:10.2528/PIERB07101503
http://www.jpier.org/PIERB/pier.php?paper=07101503
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