通信学报2024，Vol.45Issue(9)：82-91,10.DOI:10.11959/j.issn.1000-436x.2024157
低导频开销RIS辅助毫米波MIMO系统参数化信道估计方案
Low pilot overhead parametric channel estimation scheme for RIS-assisted mmWave MIMO systems
摘要
Abstract
To address the timely acquisition of channel state information in reconfigurable intelligent surface(RIS)-as-sisted millimetre wave(mmWave)multiple-input multiple-output(MIMO)systems,a channel estimation scheme based on tensor decomposition was proposed.Firstly,a channel training mechanism with low pilot overhead was designed us-ing a few passive reflection units and constructing a phase shift matrix.Then,a non-iterative channel estimation algo-rithm was derived using tensor canonical polyadic decomposition with Vandermonde structure constraints.Theoretical analysis indicated that the minimum pilot overhead of the proposed scheme only depended on the product of the subchan-nel path numbers of the reflection links and exhibited low computational complexity.Simulation results further verify the superiority of the proposed scheme compared to other methods.关键词
可重构智能超表面/毫米波/多输入多输出/信道估计/张量Key words
RIS/mmWave/MIMO/channel estimation/tensor分类
信息技术与安全科学引用本文复制引用
李双志,杨睿棋,郭新,黄赛..低导频开销RIS辅助毫米波MIMO系统参数化信道估计方案[J].通信学报,2024,45(9):82-91,10.基金项目
国家自然科学基金资助项目(No.61901416) （No.61901416）
河南省青年人才托举工程基金资助项目(No.2024HYTP026) （No.2024HYTP026）
河南省自然科学基金资助项目(No.242300420269) （No.242300420269）
河南省科技攻关基金资助项目(No.242102211017)The National Natural Science Foundation of China(No.61901416),The Young Elite Scientists Sponsorship Pro-gram of Henan(No.2024HYTP026),The Natural Science Foundation of Henan(No.242300420269),The Science and Technology Development Project of Henan Province(No.242102211017) （No.242102211017）
