Path-loss prediction model for microcells

Empirical path-loss formulas for microcells in low-rise and high-rise environments are established from measurements conducted in the San Francisco Bay area. Using the 1-km intercepts and slope indexes of the least square fit lines to the measurements at cellular and personal communication services...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 1999-09, Vol.48 (5), p.1453-1462
Main Authors: Har, D., Xia, H.H., Bertoni, H.L.
Format: Article
Language:English
Subjects:
Anisotropic magnetoresistance
Applied sciences
Area measurement
Base stations
Blocking
Cellular communication
Exact sciences and technology
Exact solutions
Frequency measurement
Least squares method
Least squares methods
Mathematical analysis
Mathematical models
Microcell networks
Personal communication networks
Predictive models
Radiocommunications
Shape
Stations
Telecommunications
Telecommunications and information theory
Testing
Wave propagation
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Summary:Empirical path-loss formulas for microcells in low-rise and high-rise environments are established from measurements conducted in the San Francisco Bay area. Using the 1-km intercepts and slope indexes of the least square fit lines to the measurements at cellular and personal communication services (PCS) frequencies for three base station heights, simple analytic expressions are obtained. Separate formulas are presented for environments of low buildings and for the high-rise urban core. Following the formula development processes for individual test routes, in low-building environments, a single nonline-of-sight (non-LOS) formula that is applicable to all non-LOS routes is derived. Due to the anisotropic property of wave propagation, cell shape of microcells is no longer circular. As examples, cell shape is presented when base stations are on the street in the middle of a block and when they are placed in the backyard.
ISSN:0018-9545
1939-9359
DOI:10.1109/25.790520