Performance of band-limited 16-ary DEQAM transmission over mobile satellite communication links

Author

Cheung, S.W. ; Aghvami, A.H.

Author_Institution

Kings Coll. London, UK

fYear

1988

fDate

17-19 Oct 1988

Firstpage

163

Lastpage

167

Abstract

The authors present the results of a computer simulation study on the performance of 16-ary differentially encoded quadrature-amplitude-modulation (16-ary DEQAM) through nonlinear satellite channels, in the presence of additive white Gaussian noise (AWGN) and adjacent-channel-interference (ACI). It is assumed that the satellite transponder is linear, and each of the Earth stations uses a newly developed solid-state power amplifier (SSPA) for high power amplification. The results are compared with those of a 16-ary DEQAM system employing a conventional travelling wave tube amplifier (TWTA). Results indicate that 16-ary DEQAM transmission for mobile satellite systems employing SSPA´s is promising

Keywords

amplifiers; amplitude modulation; interference (signal); mobile communication systems; satellite ground stations; satellite relay systems; transponders; white noise; 16-ary differentially encoded quadrature-amplitude-modulation; Earth stations; additive white Gaussian noise; adjacent-channel-interference; band-limited 16-ary DEQAM transmission; computer simulation study; mobile satellite communication links; nonlinear satellite channels; satellite transponder; solid-state power amplifier;

fLanguage

English

Publisher

iet

Conference_Titel

Satellite Systems for Mobile Communications and Navigation, 1988., Fourth International Conference on

Conference_Location

London

Print_ISBN

0-85296-367-X

Type

conf

Filename

10424