Centralized Two-Way AF MIMO Multiple Dispersed Relay Network

Author

Kanghee Lee ; Jie Yang ; Kwon, Hyuck M. ; Hyuncheol Park ; Lee, Yong H.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Wichita State Univ., Wichita, KS, USA

Volume

64

Issue

5

fYear

2015

fDate

42125

Firstpage

2133

Lastpage

2138

Abstract

This paper considers a two-way amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay network consisting of two sources (each with multiple antennas) and multiple physically dispersed single-antenna relays. A central station finds the optimum relay amplifying matrices and transmit/receive beamforming vectors explicitly and iteratively under the transmit power constraints at the sources and the relays. The minimum-mean-square-error criterion is used. Numerical results show that the proposed scheme outperforms the existing two-way AF MIMO network schemes proposed by Arti et al. and Wang et al.

Keywords

amplify and forward communication; antenna arrays; array signal processing; mean square error methods; relay networks (telecommunication); amplify-and-forward network; centralized two-way AF MIMO network; mean square error; multiple antennas; multiple dispersed relay network; multiple-input multiple-output network; optimum relay amplifying matrices; physically dispersed single-antenna relays; power constraints; transmit-receive beamforming vectors; Antennas; Array signal processing; MIMO; Relay networks (telecommunications); Signal to noise ratio; Vectors; Amplify-and-forward (AF); beamforming; minimum mean square error (MMSE); power constraint; two-way;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2014.2338075

Filename

6851940