面向通信抗干扰的IRS-NOMA系统上行链路和速率的优化  

Uplink and Rate Optimization of Anti-jamming Communication IRS-NOMA System

作　　者：张锐[1] ZHANG Rui(Department of Information Engineering,Zhumadian Vocational and Technical College,Zhumadian 463000,China)

机构地区：[1]驻马店职业技术学院信息工程学院,河南驻马店463000

出　　处：《火力与指挥控制》2025年第3期49-55,共7页Fire Control & Command Control

基　　金：河南省科技攻关基金资助项目(212102210515)。

摘　　要：智能反射面可有效调整通信信道,能提升战场环境下的抗干扰能力。结合非正交多址接入技术,提出基于流行优化算法的上行链路和速率的优化方案。将战场中的战车视为用户,这些用户构成一个通信网络。ISMO方案通过联合优化IRS相移和用户传输功率,最大化系统和速率。建立最大化和速率的优化问题,考虑到优化问题的非凸性,引用交替优化技术获取用户传输功率和IRS相移的解。仿真结果表明,相比于同类方案,ISMO方案提升了系统和速率。Intelligent Reflecting Surface(IRS)can effectively adjust the communication channel,which can improve the anti-interference ability in the battlefield environment.For this purpose,Nonorthogonal Multiple Access(NOMA)technology is combined,and Improving Sum Rate of Uplink based on Manifold Optimization(ISMO)scheme is proposed.The combat vehicles in the battle field are regarded as users.These users form a network.The main objective of ISMO scheme is to maximize the sum rate of uplink by jointly designing the IRS phase shifts and the users’transmit power.The sum-rate maximization problem is firstly formulated.Then the non-convexity of the optimization problem is considered,and the alternative optimization technology is introduced to obtain the solution to user transmit power and IRS phase shift.The simulation results show that compared with the similar scheme,the ISMO scheme improves the system and the rate.

关 键 词：智能反射面 非正交多址接入 和速率 流形优化 黎曼梯度 

分 类 号：TN929.5[电子电信—通信与信息系统]