移动通信2024，Vol.48Issue(4)：47-53,7.DOI:10.3969/j.issn.1006-1010.20240217-0001
基于RIS的车路协同反向散射保密通信方法
A Method for RIS-based Vehicle-Infrastructure Collaborative Backscatter Secure Communication
摘要
Abstract
Considering the unprecedented requirement of energy consumption and network lifetime in future Internet of vehicles(IoV),the BackCom and RIS technologies are leveraged in vehicle-to-infrastructure(V2I)wireless communication systems to meet the scenarios and requirements of the extensive infrastructure deployment.These two technologies can accomplish passive low-power data transmission without radio frequency components.In the introduced system model,a RIS mounted on roadside infrastructure sends confidential information to multiple legitimate users by backscattering the signals from a nearby base station.However,there is a risk of eavesdropping on the backscattered signals.Hence,we consider that multiple eavesdroppers attempt to intercept the RIS's information and the goal is to maximize the minimum secrecy rate by jointly optimizing the active beamformer at the base station and the reflection coefficient of RIS.Finally,tremendous simulations are implemented based on an alternative algorithm to demonstrate the feasibility and effectiveness of the considered system and the proposed optimization schemes.关键词
车路协同/反向散射通信/可重构智能表面/物理层安全Key words
vehicle-infrastructure collaboration/backscatter communication/reconfigurable intelligent surface/physical layer security分类
电子信息工程引用本文复制引用
韩帅,王金明,李家玲..基于RIS的车路协同反向散射保密通信方法[J].移动通信,2024,48(4):47-53,7.基金项目
国家自然科学基金面上项目"面向高通量卫星互联网的海量终端自适应接入技术研究"(62371166) （62371166）
黑龙江省重点研发项目"农业广域低成本智联信息传输技术与系统"(JD22A001) （JD22A001）
