移动通信2024，Vol.48Issue(12)：58-63,6.DOI:10.3969/j.issn.1006-1010.20241025-0002
太赫兹M-MIMO系统混合预编码设计
Hybrid Precoding Design for Terahertz Massive MIMO Systems
摘要
Abstract
To address the challenges of high path loss and short transmission range of the existing terahertz(THz)massive multiple-input multiple-output(M-MIMO)systems,this paper proposes an improved manifold optimization(MO)hybrid precoding scheme.Through constructing the adjacent phase of the optimal phase,the convergence speed of the gradient descent algorithm is effectively improved,and the performance of THz M-MIMO systems is improved.The proposed algorithm avoids the complex Kronecker product calculations in the MO algorithms,resulting in a significant reduction in computational complexity compared to conventional MO methods.Simulation results demonstrate that the proposed improved MO algorithm achieves a better achievable rate than several hybrid precoding algorithms,closely approaching the performance of the optimal fully-digital singular value decomposition precoding algorithm.关键词
太赫兹/M-MIMO/改进MO混合预编码Key words
THz/M-MIMO/improved MO hybrid precoding分类
电子信息工程引用本文复制引用
李倩倩,李佳慧,闵洁,郝诗雅,李华,戴晓明..太赫兹M-MIMO系统混合预编码设计[J].移动通信,2024,48(12):58-63,6.基金项目
国家自然科学基金面上项目"大规模MIMO系统分布式基带信号检测理论与技术研究"(62371037) （62371037）
广东省基础与应用基础研究基金"有源RIS辅助NOMA网络物理层安全通信研究"(2024A1515011186) （2024A1515011186）
中国博士后科学基金资助项目"高速移动场景去蜂窝M-MIMO系统信号处理关键技术研究"(2023M740223) （2023M740223）
国家资助博士后研究人员计划"6G空天地一体化通信网络多维资源受限下新型多址接入与波形技术研究"(GZC20230241) （GZC20230241）
