Performance analysis of beamforming in two hop amplify and forward relay networks with antenna correlation

Author

Louie, Raymond H.Y. ; Li, Yonghui ; Suraweera, Himal A. ; Vucetic, Branka

Author_Institution

Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW

Volume

8

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

3132

Lastpage

3141

Abstract

The performance of beamforming with antenna correlation in a two hop amplify and forward (AF) multiple input multiple-output (MIMO) relay network is analyzed. This network consists of a single relay which is used to amplify and forward the signal from the source to the destination. The source and destination are both equipped with multiple antennas, which are correlated in space, while the relay has a single antenna. In this paper, we derive new closed form expressions for the outage probability and probability density function of the received signal-to-noise ratio (SNR) at the destination. We also present exact symbol error rate expressions for the two hop AF MIMO relay network, and show that the full spatial diversity order can be achieved. Our results also indicate that spatial correlation is detrimental to the outage probability and symbol error rate at high SNR, and beneficial at low SNR.

Keywords

MIMO communication; antenna arrays; array signal processing; correlation methods; error statistics; antenna correlation; beamforming; forward relay networks; multiple input multiple-output relay network; probability density function; spatial correlation; spatial diversity; symbol error rate expression; two-hop AF MIMO relay network; two-hop amplify; Array signal processing; Australia; Decoding; Digital relays; Error analysis; Laboratories; MIMO; Performance analysis; Rayleigh channels; Signal to noise ratio; Two hop networks, relay, beamforming, antenna correlation, cooperative communications;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2009.080807

Filename

5089994