Smart antenna arrays for correlated and imperfectly-estimated Rayleigh fading channels

Author

Siriteanu, Constantin ; Blostein, Steven D.

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada

Volume

5

fYear

2004

fDate

20-24 June 2004

Firstpage

2757

Abstract

Eigenbeamforming, herein referred to as maximal-ratio eigen-combining (MREC), was recently proposed as an alternative to maximum average signal-to-noise ratio beamforming (Max-ASNR BF) and maximal-ratio combining (MRC) in antenna array systems. An analysis of MREC is undertaken and an average error probability (AEP) expression is obtained for BPSK modulation and Rayleigh fading when the channel gains may be imperfectly-known and partially correlated. The analysis is further specialized to pilot-symbol-aided channel estimation, to allow an analytical performance assessment of smart antenna arrays (SAAs) employing MREC in realistic scenarios with angle-of-arrival (AOA) dispersion. Numerical results show that MREC may significantly outperform Max-ASNR BF and MRC in imperfect conditions.

Keywords

Rayleigh channels; adaptive antenna arrays; channel estimation; correlation methods; direction-of-arrival estimation; eigenvalues and eigenfunctions; error statistics; phase shift keying; BPSK modulation; Max-ASNR BF; angle-of-arrival dispersion; antenna array systems; average error probability; eigenbeamforming; imperfectly-estimated Rayleigh fading channels; maximal-ratio combining; maximal-ratio eigen-combining; maximum average signal-to-noise ratio beamforming; pilot-symbol-aided channel estimation; smart antenna arrays; Antenna arrays; Array signal processing; Binary phase shift keying; Channel estimation; Diversity reception; Error probability; Fading; Performance analysis; Rayleigh channels; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2004 IEEE International Conference on

Print_ISBN

0-7803-8533-0

Type

conf

DOI

10.1109/ICC.2004.1313032

Filename

1313032