Correlation bandwidth characteristics for paths between base station and building roofs

Author

Ichitsubo, Shin´ich ; Akeyama, Akira ; Sakagami, Shuji

Author_Institution

Wireless Commun. Syst. Labs., NTT, Tokyo, Japan

Volume

48

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

295

Lastpage

300

Abstract

Correlation (coherence) bandwidths for the paths between base station and building roof antennas were obtained from the amplitude-frequency characteristics measured on the roofs of 11 buildings in Tokyo, Japan, in the 900-MHz band. For the cases where the base-station antenna was in the line-of-sight from the building roof antenna and the propagation loss was 2-9 dB larger than the free-space propagation loss, the correlation bandwidth decreased as the excess loss from free-space propagation loss increased. For out-of-sight cases, correlation bandwidths ranged from 38 to 320 kHz and were similar to those estimated for on road. The correlation bandwidth measured using a 12-element Yagi antenna was double that measured with a half-wave dipole antenna

Keywords

UHF radio propagation; cellular radio; correlation methods; multipath channels; 38 to 320 kHz; 900 MHz; Japan; Tokyo; Yagi antenna; amplitude-frequency characteristics; base station; building roofs; coherence bandwidths; correlation bandwidth characteristics; half-wave dipole antenna; line-of-sight; out-of-sight case; propagation loss; Antenna measurements; Antennas and propagation; Bandwidth; Base stations; Computer vision; Dipole antennas; Frequency; Propagation losses; Receiving antennas; Roads;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.740108

Filename

740108