计算机与数字工程2026，Vol.54Issue(4)：933-938,944,7.DOI:10.3969/j.issn.1672-9722.2026.04.005
基于混合移相器的毫米波大规模MIMO混合预编码算法研究
Research on Hybrid Precoding Algorithm Based on Hybrid Phase Shifter in Millimeter Wave Massive MIMO
摘要
Abstract
To address the problem of low energy efficiency in millimeter wave massive MIMO systems,a hybrid precoding iter-ative minimization algorithm based on discrete mixed precision phase shifter is proposed.Firstly,the algorithm follows the basic idea of alternating minimization algorithm and applies orthogonal constraints to the digital precoder by utilizing its orthogonal charac-teristics.Then it extracts the phase of the analog precoder from the equivalent precoder determined by the digital precoder and the unconstrained optimal digital precoder and perform mixed quantization processing on the extracted phase.Finally,the definition of dual norm and Hölder inequality are used to approximate optimized objective function.The simulation results show that the pro-posed algorithm significantly improves the energy efficiency of the system compared to other single precision algorithms while ensur-ing spectral efficiency close to the all digital precoding scheme.Moreover,the proposed algorithm has the properties of rather fast convergence speed and low computational complexity.关键词
大规模MIMO/混合精度移相器/混合预编码/频谱效率/能量效率/混合量化Key words
massive MIMO/hybrid precision phase shifter/mixed precoding/spectrum efficiency/energy efficiency/mixed quantization分类
信息技术与安全科学引用本文复制引用
穆子健,朱艳萍,陈家楠,陈继鑫..基于混合移相器的毫米波大规模MIMO混合预编码算法研究[J].计算机与数字工程,2026,54(4):933-938,944,7.基金项目
国家重点研发计划(编号:2022YFE0122700) （编号:2022YFE0122700）
国家自然科学基金项目(编号:61971230)资助. （编号:61971230）
