大规模MU-MIMO无线专网上行链路检测算法  

Uplink Detection Algorithm Based on Massive MU-MIMO Wireless Private Network

作　　者：黄振 王捷[1] HUANG Zhen;WANG Jie(School of Information Engineering,Southeast University,Nanjing 210096,China)

机构地区：[1]东南大学信息科学与工程学院,江苏南京210096

出　　处：《无线电通信技术》2021年第3期324-328,共5页Radio Communications Technology

基　　金：国家部委基金资助项目。

摘　　要：为了最大化利用大规模多用户MIMO(Multi User-Multi Input and Multi Output,MU-MIMO)系统中的频谱资源和功率资源,在无线专网信道环境下,结合了多用户预编码和块对角化(Block Diagonalization,BD)干扰抑制技术,分别应用了线性检测和非线性检测算法,开发了完整的仿真链路平台,对系统误码率和频谱效率进行了仿真分析。在仿真结果性能接近的3种非线性检测算法中,通过比较其复杂度分析结果,考虑硬件实现难易程度,得出在无线通信专网上行链路系统中应用QRM-MLD(QR Decomposition and M algorithm-Maximum Likelihood Detection,M=2)算法最为合适的结论。In order to maximize the use of the spectrum resources and power resources in large-scale Multi User-Multi Input and Multi Output(MU-MIMO)system,a precoding scheme and block diagonalization(BD)interference suppression technology are considered in wireless private network channel environment,respectively applying linear detection and non-linear detection algorithms.And a complete simulation platform is developed,simulation analysis of the system’s bit error rate and spectrum efficiency is performed.Among the three non-linear detection algorithms with similar performance in simulation results,their complexity analysis results are compared,considering the difficulty of hardware implementation.I It is concluded that the QRM-MLD(QR Decomposition and M algorithm-Maximum Likelihood Detection,M=2)algorithm is the most suitable algorithm detected in the wireless communication private network uplink system.

关 键 词：MU-MIMO QRM-MLD 无线通信专网 块对角化干扰抑制 

分 类 号：TN929[电子电信—通信与信息系统]