基于智能超表面的室内覆盖增强技术研究与实验验证  

Research and Experimental Verification of Reconfigurable Intelligent Surface in Indoor Coverage Enhancement

作　　者：费丹 陈晨[3] 郑鹏 游明博 丁建文[1,4] 王玮 章嘉懿[1] 艾渤 金石[6] 崔铁军[7] FEI Dan;CHEN Chen;ZHENG Peng;YOU Mingbo;DING Jianwen;WANG Wei;ZHANG Jiayi;AI Bo;JIN Shi;CUI Tiejun(School of Electronic and Information Engineering,Beijing Jiaotong University,Beijing 100044,China;Nanjing Rongcai Transportation Technology Research Institute,Nanjing 210096,China;Frontiers Science Center for Smart High-speed Railway System,Beijing Jiaotong University,Beijing 100044,China;National Research Center of Railway Safety Assessment,Beijing Jiaotong University,Beijing 100044,China;ZTE Corporation,Shenzhen 518057,China;National Mobile Communications Research Laboratory,Southeast University,Nanjing 211189,China;State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China)

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]南京融才交通科技研究院有限公司,南京210096 [3]北京交通大学智慧高铁系统前沿科学中心,北京100044 [4]北京交通大学国家轨道交通安全评估研究中心,北京100044 [5]中兴通讯股份有限公司,深圳518057 [6]东南大学移动通信国家重点实验室,南京211189 [7]东南大学毫米波国家重点实验室,南京210096

出　　处：《电子与信息学报》2022年第7期2374-2381,共8页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(62171021);国防科技工业海洋防务技术创新中心创新基金(2021-40);江苏省前沿引领技术基础研究专项(BK20212002-3);中国国家铁路集团有限公司科技研究开发计划项目(SY2021G001)。

摘　　要：智能超表面(RIS)通过打造可重构主动智能无线环境,打破了无线通信系统中被动电波传播的局限性,为5G-Adv和6G发展创造了新的契机。该文介绍了RIS系统架构与工作原理,包括硬件设计与波束聚合原理等。搭建了RIS辅助的无线通信实验测试系统,通过对比无RIS、随机码本RIS及赋形码本RIS 3种情况下的测试结果,验证了RIS通过反射波束赋形实现覆盖增强的能力。Reconfigurable Intelligent Surface(RIS)breaks technological limitations of traditional wireless communication systems,it creates new opportunities for development of 5G-Adv and 6G by introducing reconfigurable communication environment.RIS system architecture and working principle are introduced in detail,including hardware design and beamforming method.RIS assisted wireless communication system is introduced in-depth,received signal gain and system performance are analyzed in details.Combined with indoor test,beamforming ability of RIS is verified.

关 键 词：智能超表面 无线通信系统 相位设计 覆盖增强 

分 类 号：TN911[电子电信—通信与信息系统]