Path-loss prediction model for microcells

Author

Har, Dongsoo ; Xia, Howard H. ; Bertoni, Henry L.

Author_Institution

AirTouch Cellular, Walnut Creek, CA, USA

Volume

48

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

1453

Lastpage

1462

Abstract

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

Keywords

UHF radio propagation; microcellular radio; personal communication networks; 1.9 GHz; PCS; San Francisco Bay area; anisotropic property; backyard; base station heights; cell shape; empirical path-loss formulas; high-rise environments; high-rise urban core; least square fit lines; low buildings; low-rise environments; microcells; path-loss prediction model; personal communication services; wave propagation; Anisotropic magnetoresistance; Area measurement; Base stations; Frequency measurement; Least squares methods; Microcell networks; Personal communication networks; Predictive models; Shape; Testing;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.790520

Filename

790520