Joint optimization for MIMO AF multiple-relay systems with correlated channel uncertainties

Author

Chia-Chang Hu ; Yi-Shiang Chiu ; Sheng-Shang Lin

Author_Institution

Dept. of Commun. Eng., Nat. Chung Cheng Univ., Chiayi, Taiwan

fYear

2012

fDate

3-7 Dec. 2012

Firstpage

3690

Lastpage

3695

Abstract

In the paper, the source/relays-precoders and destination-equalizer combined optimization is proposed in a dual-hop multiple-input multiple-output (MIMO) amplify-and-forward (AF) multiple-relay system with correlated channel uncertainties in both hops. By taking correlated channel uncertainties into account, a robust transceiver joint design is developed based on the minimum mean-squared error (MMSE) criterion under individual power constraints at the source and relays. Simulation results illustrate that the robust transceiver design architecture for an AF-MIMO system equipped with multiple relays outperforms substantially the non-robust transceiver design.

Keywords

MIMO communication; amplify and forward communication; correlation methods; equalisers; mean square error methods; optimisation; precoding; radio transceivers; relay networks (telecommunication); telecommunication power management; wireless channels; MIMO AF multiple-relay system; MMSE criterion; correlated channel uncertainties; destination-equalizer combined optimization; dual-hop multiple-input multiple-output amplify-and-forward multiple-relay system; joint optimization; minimum mean-squared error criterion; power constraint; robust transceiver design architecture; robust transceiver joint design; source/relays-precoder; MIMO; MMSE; amplify-and-forward (AF); correlated channel uncertainty; equalizer; precoder; relay;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Communications Conference (GLOBECOM), 2012 IEEE

Conference_Location

Anaheim, CA

ISSN

1930-529X

Print_ISBN

978-1-4673-0920-2

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2012.6503690

Filename

6503690