基于V-BLAST的特征波束形成技术在大规模MIMO中的运用  

The Eigen-beamforming combined with V-BLAST in massive MIMO system

作　　者：张帅[1] 战金龙[1] 徐偲 

机构地区：[1]西安邮电大学通信与信息工程学院,陕西西安710121

出　　处：《电视技术》2017年第4期130-135,共6页Video Engineering

基　　金：国家863计划项目(2014AA01A705);国家重大专项项目(2014ZX03003005-003);陕西省国际交流项目(2016KW-046);陕西省自然科学基金资助项目(2011JM8027);西安邮电大学研究生创新基金(114-602080054)

摘　　要：为了获得较高的频谱效率及较低的误码率,提出了大规模MIMO系统中基于V-BLAST的特征波束形成技术(the Eigen-Beamforming combined with V-BLAST,V-BLAST&E-BF),利用大规模天线形成多个特征波束,在这些特征波束上传输多个码流,既可以获得阵列增益又可以获得复用增益。仿真结果表明:提出的方案较MF预编码和传统特征波束形成技术具有较好的性能,并且在接收端无须进行传统V-BLAST的检测算法(如MMSE检测、ZF检测)亦可分离出信号。In order to obtain the higher spectrum efficiency and the lower bit error rate, the Eigen-Beamforming combined with V- BLAST in massive MIMO system was proposed in this paper. The proposed method utilized massive MIMO to form multiple orthogo- nal Eigen-beams. Then multiple code streams are transmitted by these Eigen-beams. Thus the array gain and multiplexing gain can be obtained simultaneously. Simulation results confirm the proposed scheme is better than MF and the traditional Eigen-Beam- forming. It doesnt need the traditional detection algorithms of the V-BLAST （eg：ZF, MMSE） to separate the signals in the receiver.

关 键 词：大规模MIMO V-BLAST 特征波束形成 

分 类 号：TN919.3[电子电信—通信与信息系统]