摘要
为了降低线性预编码算法中的运算复杂度,提出了格基规约技术。首先将格基规约技术与迫零预编码结合,构成格基规约(Lattice Reduction)破零预编码(Lattice Reduction-Zero Force,LR-ZF)算法,提高信道正交性,将LR-ZF算法与模拟预编码组成混合预编码运用在大规模MIMO系统中。仿真结果表明,此方案在减小系统复杂度的同时,提高了系统性能,进一步降低了系统误码率。
In order to decrease the computational complexity in the linear precoding algorithm,a LR(lattice reduction)technology is proposed.Firstly,by combining the LR technology with ZF(Zero Force)precoding,the LR-ZF algorithm is formed so as to improve the channel orthogonality.Then,the LR-ZF algorithm and analog precoding are combined to form hybrid precoding and used in the massive MIMO system.The simulation results indicate that this scheme improves system performance while reducing system complexity,and further reduces system error rate.
作者
王曼
WANG Man(Kashgar University,Kashgar Xinjiang 844000,China)
出处
《通信技术》
2021年第1期34-37,共4页
Communications Technology
