Title :
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
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;
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
DOI :
10.1109/ChinaCom.2012.6417503
