智能反射面辅助的无人机抗干扰通信方法  

Reconfigurable Intelligent Surface-Assisted UAV Anti-Jamming Communication

作　　者：汪潇 多滨 赖欢[1] 罗俊松[1] 宁进 王梓斌 WANG Xiao;DUO Bin;LAI Huan;LUO Junsong;NING Jin;WANG Zibin(College of Computer Science and Cyber Security,Chengdu University of Technology,Chengdu 610059,China;Key Laboratory of Information Systems Security Technology,Beijing 100101,China)

机构地区：[1]成都理工大学计算机与网络安全学院,成都610059 [2]信息系统安全技术重点实验室,北京100101

出　　处：《电子信息对抗技术》2024年第5期1-11,共11页Electronic Information Warfare Technology

基　　金：国家自然科学基金资助项目(62172060);四川省国际科技创新合作/港澳台科技创新合作项目(2023YFH0092);四川省区域创新合作项目(2022YFQ0017)。

摘　　要：针对无人机与多地面用户通信场景中,易受多地面恶意干扰源攻击的问题,提出了智能反射面辅助的无人机抗干扰通信方法,其中智能反射面可以通过动态地增强用户信号以及削弱恶意干扰信号来提高通信性能。所提方法通过联合设计用户调度、智能反射面相移和无人机三维轨迹最大化抗干扰通信速率。为了解决优化变量深度耦合以及所构建速率最大化问题的非凸性导致的难以直接求解,通过应用交替优化算法、半正定松弛以及连续凸逼近技术,提出有效迭代算法求解出高质量次优解。仿真结果表明,与基准方案相比,优化方案可以显著提高无人机抗干扰通信的性能,保障通信数据传输的可靠性。An anti-jamming communication method for unmanned aerial vehicle(UAV)with the assistance of a reconfigurable intelligent surface(RIS)is proposed to address the issue of vulnerability to multiple malicious jamming attacks.The RIS can dynamically enhance users’signals and weaken malicious jamming signals to improve communication performance.By jointly designing the user scheduling,RIS phase shift and UAV three-dimensional(3D)trajectory,the anti-jamming communication rate is maximized.An efficient iterative algorithm is proposed to tackle the deep coupling of optimization variables and the non-convexity of formulated rate maximization problem.And it solves for a high-quality suboptimal solution by leveraging alternating optimization(AO),semidefinite relaxation(SDR)and successive convex approximation(SCA).The simulations show that the proposed algorithm can significantly improve the anti-jamming communication performance and ensure the reliability of communication data transmission compared with the benchmark schemes.

关 键 词：无人机通信 智能反射面 抗干扰 三维轨迹优化 相移优化 

分 类 号：TN918.91[电子电信—通信与信息系统]