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《Journal of Shanghai Jiaotong University》 2014-10
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Minimum Mean Square Error Vector Precoding Based on Block Diagonalization

GENGXuan;SUN Zuo-lei;LIU Feng;HE Di;College of Information Engineering,Shanghai Maritime University;Department of Electronic Engineering,Shanghai Jiaotong University;  
For the precoding problem of multi-user multiple input multiple output(MIMO)downlink system,an effective channel having a block diagonal structure by use of block diagonalization(BD)method was proposed.Based on this effective channel,the mean square error(MSE)of transceiver signals was minimized,such that the two parts of perturbation vector,i.e.the perturbation vector expanding constellation and residual interference vector,were derived and thus the total transmit signals and precoding matrix were obtained.The simulation results show that the proposed method outperforms the conventional zero-forcing(ZF)BD method,the zero-forcing BD vector precoding(VP),as well as the regularized block diagonalization and its improved methods.
【Fund】: 国家自然科学基金(61271283 61401270);; 上海市教委科研创新项目(14YZ113);; 上海海事大学校基金(20130460 20130479)
【CateGory Index】: TN919.3
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【Co-citations】
Chinese Journal Full-text Database 1 Hits
1 Zhang Yuan;Yu Jinming;Information Science &Technology,Donghua University;;Joint pre-coding algorithm based on ZF criterion for multi-user MIMO downlink[J];Electronic Measurement Technology;2014-11
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