A simple alternative to the lognormal model of shadow fading in terrestrial and satellite channels

Author

Abdi, Ali ; Barger, H. Allen ; Kaveh, Mostafa

Author_Institution

Dept. of Elec. & Comp. Eng, Minnesota Univ., Minneapolis, MN, USA

Volume

4

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

2058

Abstract

The distribution of the local average power at the land mobile is widely accepted to be lognormal in both terrestrial and satellite channels. However, the mathematical form of the lognormal distribution is not convenient for analytic calculations. We show the utility of the gamma distribution for shadow fading, in both terrestrial and satellite channels, using empirical data. Furthermore, we show that the application of the gamma model of shadow fading, in place of the lognormal model, results in closed-form and mathematically-tractable solutions for key system performance measures such as the average symbol error rate of different modulations with a variety of diversity combining techniques

Keywords

diversity reception; error statistics; fading channels; gamma distribution; land mobile radio; log normal distribution; mobile satellite communication; modulation; average symbol error rate; closed-form solution; diversity combining; gamma distribution; local average power duration; lognormal distribution; lognormal model; mathematically tractable solution; mobile radio channel; mobile station; modulation; satellite channels; shadow fading; system performance measures; terrestrial channels; Binary phase shift keying; Diversity reception; Error analysis; Mathematical model; Power system modeling; Rayleigh channels; Satellite broadcasting; System performance; Wavelength measurement; Weibull fading channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

Conference_Location

Atlantic City, NJ

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.957106

Filename

957106