摘要
智能反射面(IRS)是6G的关键技术之一。优化IRS的被动反射波束赋形,能够对无线信息传输(WIT)与无线能量传输(WPT)进行辅助,从而大幅提高频谱效率。全面介绍了IRS的研究现状。首先,对IRS辅助WIT的研究现状进行了归纳分析,表明IRS对提升系统通信性能起到关键作用;然后,对IRS辅助WPT的研究进行了梳理,揭示了IRS在大幅提升能量传输效率方面的潜能;随后,重点叙述了IRS辅助无线携能通信的研究现状,并展望了物理层安全、无人机通信和多IRS协同辅助等6个新研究主题和方向。
With the ability to assist and greatly improve the spectrum efficiency of wireless information transmission(WIT)and wireless power transfer(WPT),intelligent reflecting surface(IRS)is envisioned as a key technology for future 6G communications.A comprehensive overview of the domestic and international research status of IRS-assisted WIT and WPT is proposed.First,the research on IRS-assisted WIT is summarized and analyzed,which shows that IRS plays an essential role in improving the performance of various WIT systems.Sec⁃ond,the research on IRS-assisted WPT is discussed,which reveals the great potential of the IRS in enhancing energy transfer efficiency.Then,the research on IRS-assisted simultaneous wireless information and power transfer(SWIPT)is emphatically described,and six future research directions of IRS-assisted SWIPT are prospected,including physical layer security,unmanned aerial vehicle(UAV)communication,multi-IRS cooperative assistance,and so on.
作者
庞海舰
陈健锋
张广驰
崔苗
武庆庆
PANG Haijian;CHEN Jianfeng;ZHANG Guangchi;CUI Miao;WU Qingqing(Guangdong University of Technology,Guangzhou 510006,China;State Key Laboratory of Internet of Things for Smart City,University of Macao,Macao 999078,China)
出处
《中兴通讯技术》
2022年第3期27-35,共9页
ZTE Technology Journal
基金
广东省科技计划项目(2021A0505030015、2020A050515010)
广东特支计划项目(2019TQ05X409)
智慧城市物联网国家重点实验室(澳门大学)开放课题(SKL-IoTSC(UM)-2021-2023/ORPF/A04/2022)
澳门科学技术发展基金项目(SKL-IOTSC(UM)-2021-2023、0119/2020/A3、0108/2020/A)
广东省自然科学基金(2021A1515011900)。
关键词
IRS
WIT
WPT
无线携能通信
IRS
WIT
WPT
simultaneous wireless information and power transfer
