论文信息 - Generation of an empiric propagation model for forest environment at GSM900/GSM1800/CDMA2100

Generation of an empiric propagation model for forest environment at GSM900/GSM1800/CDMA2100

This paper presents how to obtain an empiric propagation model in forest area by using both reference open area and field measurements. Empiric models for GSM 900, GSM 1800 and CDMA 2100 have been plotted through the number of tree passed in the forested area. While results conclude that path loss both in theory and measurements are increasing with respect to frequency, an obtained empiric formula for CDMA2100 is better good track in measurements than the others.

[1] Yee Hui Lee,et al. PATH LOSS MODELING FOR NEAR-GROUND VHF RADIO-WAVE PROPAGATION THROUGH FORESTS WITH TREE-CANOPY REFLECTION EFFECT , 2010 .

[2] Mark A. Weissberger,et al. An initial critical summary of models for predicting the attenuation of radio waves by trees , 1982 .

[3] Matti H. A. J. Herben,et al. COST 235: Radiowave propagation effects on next-generation fixed-services terrestrial telecommunications systems , 1997 .

[4] Sukru Ozen,et al. INVESTIGATION OF GSM SIGNAL VARIATION DEPENDING WEATHER CONDITIONS , 2008 .

[5] Ş. Özen,et al. INVESTIGATION OF GSM SIGNAL VARIATION DRY AND WET EARTH EFFECTS , 2007 .

[6] I. Kovács,et al. Radio channel characterisation for forest environments in the VHF and UHF frequency bands , 1999, Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324).

[7] Theodore S. Rappaport,et al. Wireless Communications -- Principles and Practice, Second Edition. (The Book End) , 2002 .

[8] Theodore S. Rappaport,et al. Wireless communications - principles and practice , 1996 .