A reference signal based beamforming scheme for relay networks with local channel state information

Author

Lei Zhang ; Wei Liu

Author_Institution

Commun. Technol. Lab., Huawei Technol. Co., Ltd., Shenzhen, China

fYear

2012

fDate

8-10 Aug. 2012

Firstpage

338

Lastpage

342

Abstract

Based on the minimizing mean square error (MSE) criterion, a reference signal based distributed beamforming scheme with associated adaptive algorithms is proposed. A key advantage with this scheme is that each relay node can work effectively based on only its own channel state information (CSI) and achieve a globally optimum solution without any approximation. An unconstrained adaptive algorithm is first derived and then the case with signal transmission power constraint for each individual relay node is considered. The effectiveness of the proposed scheme is verified by extensive computer simulations.

Keywords

adaptive signal processing; array signal processing; mean square error methods; relay networks (telecommunication); MSE; computer simulation; distributed beamforming scheme; local channel state information; mean square error criterion minimisation; reference signal; relay network; signal transmission power constraint; unconstrained adaptive algorithm; Adaptive algorithms; Array signal processing; Channel state information; Relays; Sensors; Signal to noise ratio; Vectors; Distributed beamforming; local channel state information; mean square error; reference signal; relay networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China (CHINACOM), 2012 7th International ICST Conference on

Conference_Location

Kun Ming

Print_ISBN

978-1-4673-2698-8

Electronic_ISBN

978-1-4673-2697-1

Type

conf

DOI

10.1109/ChinaCom.2012.6417503

Filename

6417503