Joint multi-user space time block coding and beamforming via convolutional weighting

作     者：邢志强 Zhou Tingxian Meng Weixiao 

作者机构：Communication Research Center Harbin Institute of Technology Harbin 150001 P. R. China 

出 版 物：《High Technology Letters》 (高技术通讯（英文版）)

年 卷 期：2006年第12卷第2期

页      面：119-123页

核心收录：

学科分类：08[工学] 0835[工学-软件工程] 081202[工学-计算机软件与理论] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Supported by the National Natural Science Foundation of Chin(No. 60302020) 

主　　题：space time block ceding beam forming convolutional weighting multi-user interference 

摘      要：A convolutional weighting （CW） scheme applied to a half-wavelength spacing array was proposed for multi-user system to joint STBC （space time block ceding） and beam forming （BF）. The transmitting beam is equivalent to the product of two sub-beams. One is used to realize interference suppression, while the other is employed to form a couple of uncorrelated channels from base station （BS） to the desited user （to meet the requirement of STBC） and to maximize SINR （signal-to-interference-plus noise ratio） at the desired receiver. As an optimum combination of STBC and beam forming, the proposed scheme can achieve both full diversity order of STBC and array gain of BF. Meanwhile, it can also effec- tively restrain multi-user interference by nulling. Simulation results show that the proposed scheme can significantly improve the BER （Bit Error Rate） performance and enhance system capacity as compared with the conventional eigen-beamforming （EBF） technique applied to a half-wavelength spacing array.