面向通信SNR增强的RIS三维空间位置部署研究
Research on RIS Location Deployment in Three-dimensional Space for Communication SNR Enhancement
郭歆莹 1田高峰1
作者信息
- 1. 河南工业大学粮食信息处理与控制教育部重点实验室,河南郑州 450001;河南工业大学河南省粮食光电探测与控制重点实验室,河南郑州 450001;河南工业大学信息科学与工程学院,河南郑州 450001
- 折叠
摘要
针对可重构智能表面(Reconfigurable Intelligent Surface,RIS)辅助无线通信系统存在"双衰落效应"问题,提出了一种RIS位置部署优化方法.建立了符合实际应用场景的RIS辅助无线通信系统模型,该模型考虑RIS可部署在三维空间中任意位置.以最大化用户接收信噪比(Signal to Noise Ratio,SNR)为目标,通过数值分析三维空间中基站、RIS和用户之间的相对位置关系,理论推导出RIS最优部署位置的闭式解.仿真实验结果表明,将RIS部署在通过数值分析方法获取的最优位置处,提高了实际应用场景下RIS辅助无线通信系统中的用户接收SNR.
Abstract
To deal with the problem of"double fading effect"in Reconfigurable Intelligent Surface(RIS)assisted wireless communication system,an optimization method of RIS location deployment is proposed.A model of RIS-assisted wireless communication system is established in accordance with the practical application scenario,which considers that the RIS can be deployed at any location in the three-dimensional space.With the objective of maximizing the user-received Signal to Noise Ratio(SNR),the closed-form solution for the optimal deployment location of RIS is theoretically derived by numerically analyzing the relative position relationship among the base station,the RIS and the user in the three-dimensional space.The results of simulation experiments show that deploying the RIS at the optimal location obtained by the numerical analysis method improves the user-received SNR for the RIS-assisted wireless communication system in practical application scenarios.
关键词
可重构智能表面/三维空间/最优位置部署/用户接收信噪比Key words
RIS/three-dimensional space/optimal deployment location/user-received SNR引用本文复制引用
基金项目
国家自然科学基金(61901159)
河南工业大学青年骨干教师培育计划(21420104)
出版年
2024
国家科技期刊平台
NSTL
万方数据