High-SNR Performance of MIMO Multi-Channel Beamforming in Double-Scattering Channels

Author

Zhang, Haochuan ; Jin, Shi ; McKay, Matthew R. ; Zhang, Xin ; Yang, Dacheng

Author_Institution

Beijing Univ. of Posts & Telecommun., Beijing, China

Volume

59

Issue

6

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1621

Lastpage

1631

Abstract

This paper investigates the symbol error rate (SER) performance of the multiple-input multiple-output (MIMO) multi-channel beamforming (MB) in the general double-scattering channel. We derive an asymptotic expansion on the marginal eigenvalue distribution of the MIMO channel matrix, and apply the result to get an approximate expression on the average SER at high signal-to-noise ratio (SNR). Two parameters pertaining to the SER, i.e., the diversity gain and the array gain, are analyzed. Our results show that it suffices for the double-scattering channel to have only limited scatterers, if the same diversity gain as the Rayleigh channel is desired; however, once the number of scatterers is below a certain level, the array gain in the double-scattering channel will vary with the SNR logarithmically.

Keywords

MIMO communication; Rayleigh channels; array signal processing; backscatter; diversity reception; eigenvalues and eigenfunctions; error statistics; wireless channels; MIMO channel matrix; MIMO multichannel beamforming; Rayleigh channel; SER performance; approximate expression; array gain; asymptotic expansion; diversity gain; double-scattering channel; high-SNR performance; marginal eigenvalue distribution; multiple-input multiple-output; signal-to-noise ratio; symbol error rate; Arrays; Diversity methods; Eigenvalues and eigenfunctions; MIMO; Rayleigh channels; Scattering; Signal to noise ratio; Double-scattering; array gain; diversity gain; eigenvalue distribution;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2011.050211.100251

Filename

5764600