光通信技术2026，Vol.50Issue(2)：91-96,6.DOI:10.13921/j.cnki.issn1002-5561.2026.02.015
IRS辅助太赫兹通信系统的混合预编码设计
Hybrid precoding design for IRS-assisted Terahertz communication systems
摘要
Abstract
In order to solve the beam splitting problem in 6G Terahertz communications,this paper proposes a two-layer phase-shift hybrid precoding algorithm and deeply analyzes the beam splitting problem in an intelligent reflecting Ssurface(IRS)-as-sisted mixed-field environment.Considering the coexistence and coupling of near-field and far-field effects in the mixed field,we move beyond the traditional single-layer phase shifter and true-time-delay(TTD)methods.Instead,a two-layer phase shifter and TTD architecture is employed to compensate for beam splitting in the near-field and far-field,respectively.Experi-mental results show that the proposed algorithm can significantly reduce the influence of beam splitting in mixed scenarios,achieving a channel gain of at least 87.3%,which improves the system throughput.关键词
混合预编码/波束分裂/混合场/智能反射面/太赫兹Key words
hybrid precoding/beam splitting/mixing field/intelligent reflecting surface/Terahertz分类
信息技术与安全科学引用本文复制引用
李俊峰,邱多,王华华..IRS辅助太赫兹通信系统的混合预编码设计[J].光通信技术,2026,50(2):91-96,6.基金项目
重庆市自然科学基金创新发展联合基金(中国星网)项目(CSTB2023NSCQ-LZX0114)资助. （中国星网）
