一比特sigma-delta调制全数字大规模MIMO系统的遍历可达频谱效率分析  

Ergodic achievable rate analysis of one-bit sigma-delta modulated all-digital massive MIMO system

作　　者：胡安中 黄丽君 HU Anzhong;HUANG Lijun(School of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310018,China)

机构地区：[1]杭州电子科技大学通信工程学院,浙江杭州310018

出　　处：《电信科学》2025年第2期120-128,共9页Telecommunications Science

摘　　要：全数字大规模多输入多输出(multiple-input multiple-output,MIMO)系统因具有低成本、信号处理能力强、可灵活配置等优势,在移动通信中有很广泛的应用前景。在研究一比特sigma-delta调制结构的基础上,分析了系统的遍历可达频谱效率,并仿真对比了一比特结构。结果表明一比特sigma-delta调制结构具有更高的频谱效率,适用于大规模MIMO系统,并且分析结果是精确的。The all-digital massive multiple-input multiple-output(MIMO)system has a wide range of application prospects in mobile communication due to its advantages such as low cost,strong signal processing capability,and flexible configuration.On the basis of studying the one-bit sigma-delta modulation structure,the ergodic achievable spectral efficiency of the system was analyzed and compared with the one-bit structure through simulation.The results show that the one-bit sigma-delta modulation structure has higher spectral efficiency,is suitable for massive MIMO systems,and the analysis results are accurate.

关 键 词：全数字大规模MIMO 一比特sigma-delta调制 频谱效率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]