Maximum-SNR Optimal Weighting Matrix for Multiple Relay-Antenna-Assisted Orthogonal Space Time Block Codes

Author

Wei Liu ; Chuan Li ; Jian-Dong Li ; Hanzo, Lajos

Author_Institution

State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China

Volume

61

Issue

4

fYear

2012

fDate

5/1/2012 12:00:00 AM

Firstpage

1936

Lastpage

1940

Abstract

An optimal linear weighting matrix is proposed for nonregenerative multiple relay-antenna-assisted orthogonal space time block codes, which results in the maximum received signal-to-noise ratio (SNR) at the destination. The proposed optimal design of the linear weighting matrix achieves an approximately-15-dB SNR gain over the naive weighting matrix at the bit error rate (BER) of 10^-3 as a benefit of efficiently exploiting the diversity gain provided by the multiple relay antennas.

Keywords

MIMO communication; antennas; error statistics; relays; space-time block codes; MIMO; bit error rate; maximum received signal-to-noise ratio; maximum-SNR optimal weighting matrix; naive weighting matrix; optimal linear weighting matrix; relay-antenna-assisted orthogonal space time block code; Block codes; Covariance matrix; Educational institutions; Receiving antennas; Relays; Signal to noise ratio; Vectors; Multiple-input multiple-output (MIMO); optimal weighting matrix; orthogonal space time block code (OSTBC); relay;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2012.2189255

Filename

6159100