Physical characteristics of urban micro-cellular propagation

Author

Dersch, Ulrich ; Zollinger, Ernst

Author_Institution

Ascom Tech Ltd., Maegenwil, Switzerland

Volume

42

Issue

11

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

1528

Lastpage

1539

Abstract

The characteristics of the propagation in micro-cellular environments at a carrier frequency of 1.98 GHz are investigated by wide band measurements, complemented by theoretical model calculations. The spatial variations of the complex impulse response were measured with a high time resolution allowing via the scattering function the extraction of detailed information about the wave propagation process. The analysis of a large number of different real propagation configurations leads to a characterization of the most relevant urban micro-cellular propagation mechanisms: propagation in lined streets under line-of-sight conditions, coupling into side streets and propagation effects near street intersections. The wide band channel behavior during the transition of a mobile antenna from directly illuminated into shadowed areas has been considered in particular detail, since this is a crucial situation for a mobile communications system

Keywords

UHF radio propagation; cellular radio; land mobile radio; transient response; 1.98 GHz; carrier frequency; complex impulse response; line-of-sight conditions; lined streets; mobile antenna; mobile communications system; scattering function; shadowed areas; side street; spatial variations; street intersections; urban microcellular propagation; wave propagation; wide band measurements; Antennas and propagation; Broadband antennas; Data mining; Frequency measurement; Mobile antennas; Mobile communication; Scattering; Spatial resolution; Time measurement; Wideband;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.362784

Filename

362784