太赫兹科学与电子信息学报2024，Vol.22Issue(3)：240-248,9.DOI:10.11805/TKYDA2023419
智能超表面辅助低轨卫星通信技术综述
Overview of reconfigurable intelligent surface for Low Earth Orbit satellite communication
摘要
Abstract
Satellite communication can provide over-the-horizon,large-capacity communication services.Nevertheless,there will be serious line-of-sight fading and significant multipath effect in urban areas,canyons,forests and other areas where the line of sight is seriously obscured,which will result in the degradation of network communication performance.Recently,an emerging technology—the Reconfigurable Intelligence Surface(RIS)is capable of dynamically altering wireless channels by flexibly controlling the electromagnetic properties of passive reflecting elements,providing a novel route for improving the quality of Low Earth Orbit(LEO)satellite communication.Based on the basic principles and advantages of RIS,the key technologies such as channel modeling,channel estimation,and beamforming in the RIS aided LEO satellite communication are discussed.Finally,the main challenges faced of RIS in practical applications are analyzed.This work can provide a reference for research in the field of RIS aided LEO satellite communication.关键词
智能超表面/低轨卫星通信/信道建模/波束成形Key words
Reconfigurable Intelligent Surface/Low Earth Orbit satellite communication/channel model/beamforming分类
信息技术与安全科学引用本文复制引用
何俊岩,赖海光,赵鑫杰,刘子威,张更新..智能超表面辅助低轨卫星通信技术综述[J].太赫兹科学与电子信息学报,2024,22(3):240-248,9.基金项目
国家自然科学基金资助项目(U21A20450 （）
62271266) （）
江苏省前沿引领技术基础研究专项资助项目(BK20192002 （）
BK20212001) （）
