双IRS辅助的MISO系统在通信安全风险管理中的应用

Application of Dual IRS-assisted MISO System in Communication Security Risk Management

信息时代的信息传播更快,为了解决无线通信面临的安全风险,需要探索更有效的通信安全风险管理方式,对多智能反射面技术(IRS)进行研究,设计基于双IRS系统的多输入多输出(MISO)安全通信系统,并应用交替粒子群优化(PSO)算法对系统保密速率最大化问题进行寻优。当IRS反射单元为16时,基于PSO交替优化算法的双IRS协作在基站发射功率达到35 dpm后,系统保密速率呈近似直线上升,在60 dpm处达到10.6 bps/Hz。实验结果证明,双IRS辅助的MISO安全通信系统系统保密速率的表现良好,可以满足实际应用需求。

In the information age,the information travels faster.In order to solve the security risks faced by wireless communication,it is necessary to explore more effective communication security risk management methods.The intelligent reflector surface(IRS)is studied,and a multi-input single-output(MISO)secure communication system based on dual IRS-assissted is designed.The algorithm of alternating particle swarm optimization(PSO)is applied to optimize the problem of maximization of system security rate.When the IRS reflection unit is 16,the system security rate increases almost linearly when the transmitting power of the base station reaches 35 dpm,and reaches 10.6 bps/Hz at 60 dpm.The experimental results show that the MISO security communication system with dual IRS-assisted has a good performance of system security rate and can meet the needs of practical applications.