Full-Duplex Relay Based on Distributed Beamforming in Multiuser MIMO Systems

Author

Jong-Ho Lee ; Oh-Soon Shin

Author_Institution

Dept. of Electron. Eng., Gachon Univ., Seongnam, South Korea

Volume

62

Issue

4

fYear

2013

fDate

41395

Firstpage

1855

Lastpage

1860

Abstract

In this paper, we propose a distributed beamforming scheme to realize a full-duplex relay (FDR) in multiuser multiple-input-multiple-output (MIMO) relaying systems. In the proposed scheme, each mobile and relay station performs distributed transmit beamforming and receive combining, whereas the base station performs ordinary multiuser MIMO transmission. Using the channel reciprocity, the proposed FDR scheme can be realized in an iterative way with no cooperation among nodes. Numerical results show that the proposed scheme provides substantial performance improvement compared with the half-duplex relay.

Keywords

MIMO communication; array signal processing; relay networks (telecommunication); FDR scheme; MIMO relaying systems; base station; channel reciprocity; distributed beamforming; distributed transmit beamforming; full-duplex relay; half-duplex relay; mobile station; multiuser MIMO systems; multiuser MIMO transmission; multiuser multiple-input-multiple-output; relay station; substantial performance improvement; Array signal processing; Downlink; Interference; MIMO; Signal to noise ratio; Vectors; Beamforming; full duplex; iterative algorithms; multiuser multiple-input multiple-output (MIMO); relays;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2012.2232324

Filename

6376261