理想毫米波信道条件下低复杂度的混合波束成形  

Low‑Complexity Hybrid Beamforming Based on Ideal Millimeter‑Wave Channel Conditions

作　　者：林振 李莉[1] 魏爽 吴静芳 LIN Zhen;LI Li;WEI Shuang;WU Jingfang(College of Information,Mechanical and Electrical Engineering,Shanghai Normal University,Shanghai,201418,China)

机构地区：[1]上海师范大学信息与机电工程学院,上海201418

出　　处：《数据采集与处理》2020年第6期1081-1089,共9页Journal of Data Acquisition and Processing

基　　金：上海市自然科学基金(19ZR1437600)资助项目。

摘　　要：在基站和用户均采用多天线的混合波束成形架构、下行链路信道为理想毫米波信道的系统下,针对总频谱效率最大问题,提出了一种低复杂度的混合波束成形算法。该方案采用分步的方式,首先进行基站端和用户端的模拟波束成形矩阵的分别求解,在得到模拟波束成形矩阵的基础上得到等效的基带信道,然后利用块对角化数字波束成形算法求解数字波束成形矩阵。仿真结果表明,相比于其他方案,该方案在复杂度较低的同时,也提升了系统的总频谱效率。In a single-cell system where the base station and multiple users are multi-antenna hybrid beamforming architectures and the channel is an ideal millimeter-wave channel,aiming at the problem of maximum total spectral efficiency,a low-complexity hybrid beamforming algorithm is proposed.The program uses a step-by-step approach.First,the analog beamforming matrix of the base station and the mobile station is solved respectively.Baseband channel is obtained based on the analog beamforming matrix.Then the block diagonal digital beamforming algorithm is used to get the digital beamforming matrix.Simulation results show that,compared with other schemes,this scheme also improves the overall spectrum efficiency of the system while reducing the complexity.

关 键 词：混合波束成形 毫米波 频谱效率 基带信道 

分 类 号：TN911.7[电子电信—通信与信息系统]