大规模MIMO无线专网下行链路检测算法研究  

Research on Downlink Detection Algorithm Based on Massive MIMO Wireless Private Network

作　　者：孙明通 王捷[1] 翟立君[2] SUN Mingtong;WANG Jie;ZHAI Lijun(School of Information Engineering,Southeast University,Nanjing 210096,China;The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]东南大学信息科学与工程学院,江苏南京210096 [2]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电通信技术》2019年第5期502-507,共6页Radio Communications Technology

基　　金：国家部委基金资助项目

摘　　要：以充分开发利用大规模多输入多输出(Multiple-Input Multiple-Output,MIMO)空间上的无线资源、提升系统频谱效率和功率效率为目标,在充分分析无线专网信道特点的基础上,提出了线性检测和非线性检测2种方案,将多级预编码和检测算法有机结合,对高斯、乡村、市区及山区等信道条件下的误码性能和吞吐量进行了仿真分析,验证了球形译码算法优于MMSE检测算法,适用于基于大规模MIMO无线通信专网下行链路高性能接收机。In order to fully exploit the wireless space resources in the massive MIMO and improve the spectrum efficiency and power efficiency of the system,based on the full analysis of the characteristics of the wireless private network channel,two schemes of linear detection and nonlinear detection are proposed.The combination of multi-level precoding and detection algorithms is used to simulate and analyze the BER performance and throughput under the Gaussian,rural,urban and mountainous channel conditions.It is verified that the sphere decoding algorithm is better than the MMSE detection algorithm and is suitable for the private network downlink high performance receiver of wireless communication based on massive MIMO.

关 键 词：大规模多输入多输出 球形译码算法 多级预编码 

分 类 号：TN929[电子电信—通信与信息系统]