Worldwide techniques for predicting the multipath fading distribution on terrestrial LOS links: comparison with regional techniques

Author

Olsen, Roderic L. ; Tjelta, Terje ; Martin, Louis ; Segal, Benjamin

Author_Institution

Commun. Res. Centre, Ottawa, Ont., Canada

Volume

51

Issue

1

fYear

2003

fDate

1/1/2003 12:00:00 AM

Firstpage

23

Lastpage

30

Abstract

A revised worldwide method has been recommended by the Radiocommunications Sector of the International Telecommunication Union (ITU-R) in Recommendation ITU-R 530-8 for predicting the deep-fading distribution due to multipath propagation in the average worst month on VHF-EHF terrestrial line-of-sight links. This paper presents detailed testing results for the revised method on a 239-link database from 22 countries around the world in comparison with results for the leading regional methods still frequently used by some link designers for worldwide applications (viz., the Barnett-Vigants (1972, 1970) method of the United States and the Morita (1970) method of Japan). An evaluation of the form of the prediction equation is given for the revised and previous ITU-R methods and several regional methods. The revised ITU-R method is shown to perform significantly better than the other methods for both overland and coastal/overwater links.

Keywords

VHF radio propagation; fading channels; microwave links; microwave propagation; millimetre wave propagation; multipath channels; statistical analysis; Barnett-Vigants method; International Telecommunication Union; Japan; Morita method; Radiocommunications Sector; Recommendation ITU-R 530-8; USA; VHF-EHF terrestrial LOS links; average worst month; coastal/overwater links; database; deep-fading distribution; line-of-sight links; microwave radio propagation; multipath fading distribution prediction; multipath propagation; overland links; prediction equation; regional techniques; revised ITU-R method; worldwide techniques; Equations; Fading; Frequency; Microwave theory and techniques; Multipath channels; Prediction methods; Radio propagation; Repeaters; Sea measurements; Testing;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2003.808538

Filename

1187412