基于V-BLAST的特征波束形成技术在大规模MIMO中的运用

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.

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

In order to obtain the higher spectrum efficiency and the lower bit error rate,the Eigen-Beamforming combined with VBLAST in massive MIMO system was proposed in this paper.The proposed method utilized massive MIMO to form multiple orthogonal 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-Beamforming.It doesnt need the traditional detection algorithms of the V-BLAST (eg:ZF,MMSE) to separate the signals in the receiver.