Smart antenna system and its application in low-Earth-orbit satellite communication systems

Author

Jeng, S.S. ; Lin, H.-P.

Author_Institution

Dept. of Electron. Eng., Chung Yuan Christian Univ., Chung Li, Taiwan

Volume

146

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

125

Lastpage

130

Abstract

Space-division-multiple-access is one of the solutions for increasing the system capacity as well as improving the system performance in wireless communications. Experimental studies have been reported; using a smart antenna system to exploit spatial diversity in low-Earth-orbit (LEO) satellite personal communication services (S-PCS). The paper presents direction-of-arrival (DOA) estimation of satellite signals, variation of spatial signature and DOA with frequencies, elevation angle and motion, and diversity gain achieved by using an antenna array in line-of-sight (LOS) and shadowing scenarios. For typical environments, such as LOS and light or heavy shadowing cases, the experimental results reveal rich spatial diversity and high diversity gain when using a smart antenna system in LEO S-PCS

Keywords

adaptive antenna arrays; direction-of-arrival estimation; diversity reception; mobile satellite communication; multipath channels; multiuser channels; personal communication networks; satellite antennas; space division multiple access; DOA estimation; LEO S-PCS; LEO satellite PCS; LOS; antenna array; direction-of-arrival; diversity gain; elevation angle; experimental results; frequencies; high diversity gain; line-of-sight; low-Earth-orbit satellite communication systems; motion; multipath components; personal communication services; satellite signals; shadowing; smart antenna system; space-division-multiple-access; spatial diversity; spatial signature; system capacity; system performance; wireless communications;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:19990563

Filename

785318