Journal ArticleDOI
An empirically based path loss model for wireless channels in suburban environments
V. Erceg,Lawrence Joel Greenstein,S.Y. Tjandra,S.R. Parkoff,A. Gupta,B. Kulic,A.A. Julius,R. Bianchi +7 more
TLDR
A statistical path loss model derived from 1.9 GHz experimental data collected across the United States in 95 existing macrocells is presented, and it distinguishes between different terrain categories.Abstract:
We present a statistical path loss model derived from 1.9 GHz experimental data collected across the United States in 95 existing macrocells. The model is for suburban areas, and it distinguishes between different terrain categories. Moreover, it applies to distances and base antenna heights not well-covered by existing models. The characterization used is a linear curve fitting the decibel path loss to the decibel-distance, with a Gaussian random variation about that curve due to shadow fading. The slope of the linear curve (corresponding to the path loss exponent, /spl gamma/) is shown to be a random variate from one macrocell to another, as is the standard deviation /spl sigma/ of the shadow fading. These two parameters are statistically modeled, with the dependencies on base antenna height and terrain category made explicit. The resulting path loss model applies to base antenna heights from 10 to 80 m, base-to-terminal distances from 0.1 to 8 km, and three distinct terrain categories.read more
Citations
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Proceedings ArticleDOI
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Amir Ghasemi,Elvino S. Sousa +1 more
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Comparison of empirical propagation path loss models for fixed wireless access systems
TL;DR: In this paper, a comprehensive set of propagation measurements taken at 3.5 GHz in Cambridge, UK is used to validate the applicability of the three empirical propagation models mentioned previously for rural, suburban and urban environments.
References
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Journal ArticleDOI
Gain reductions due to scatter on wireless paths with directional antennas
L.J. Greenstein,V. Erceg +1 more
TL;DR: A statistical model of /spl Delta/ for fixed suburban paths at 1.9 GHz is presented, based on angle-of-arrival measurements in New Jersey, and the influences of antenna height, antenna beamwidth, distance, and season are addressed.
Journal ArticleDOI
Comparison of mobile radio transmission at UHF and X band
W.C. Jakes,D.O. Reudink +1 more
TL;DR: In this paper, experimental measurements of mobile radio transmission have been made in a suburban area at 0.836 GHz and 11.2 GHz in terms of average transmission loss, level crossing rates, power spectra, average duration of fades, and probability distributions.