Generalized eigen-combining algorithm for adaptive array systems in a co-channel interference environment

Author

Hyeon, Seungheon ; Choi, Seungwon

Author_Institution

Dept. of Electr. & Comput. Eng., Hanyang Universtiy, Seou

Volume

13

Issue

4

fYear

2009

fDate

4/1/2009 12:00:00 AM

Firstpage

215

Lastpage

217

Abstract

This paper presents a generalized eigen-combining algorithm for an adaptive array system that provides a diversity gain in angular spread, and a maximum signal-to-interference ratio (SIR) in the presence of strong interference. The proposed technique generates the maximum ratio of signal components distributed in the spatial channel subspace using channel bases that span the signal subspace and nullify the interference. Through extensive computer simulations, it is shown that the proposed algorithm represents a breakthrough in preventing performance saturation caused by strong co-channel interference.

Keywords

adaptive antenna arrays; cochannel interference; diversity reception; adaptive array systems; co-channel interference environment; diversity gain; eigen-combining algorithm; signal components; signal-to-interference ratio; spatial channel subspace; AWGN; Adaptive arrays; Adaptive systems; Antenna accessories; Antenna arrays; Diversity methods; Eigenvalues and eigenfunctions; Interchannel interference; Scattering; Transmitting antennas; Generalized eigenvalue decomposition, adaptive arrays, signal subspace, diversity, co-channel interference.;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2009.081286

Filename

4815061