频谱能量均衡的低空智联网无人系统信道干扰协同管理  

Spectrum energy balance coordinated for unmanned systems by channel interference in low-altitude intelligent network

作　　者：孙启禄 王桂胜 王叶群 田继伟 Sun Qilu;Wang Guisheng;Wang Yequn;Tian Jiwei(Air Force Engineering University,Xi’an 710077,China;State Key Laboratory of Air Traffic Management System,Beijing 100192,China)

机构地区：[1]空军工程大学,西安710077 [2]空中交通管理系统全国重点实验室,北京100192

出　　处：《计算机应用研究》2024年第12期3801-3806,共6页Application Research of Computers

基　　金：工信部民机专项资助项目;航天信息应用技术重点实验室高校合作资助课题。

摘　　要：为适应未来无人系统自主化、分布式的低空智联联合抗干扰发展趋势,解决资源有限的无人系统各节点面临的信道干扰管理和功率控制问题,提出了干扰协同联合功率控制的网络吞吐量优化方法,实现在多普勒频移和外部干扰影响下网络吞吐量的最大化,并均衡整体的能量效率和频谱效率。根据无人系统簇首节点的不同全双工工作状态,分析了可能存在的跨层、同层以及混合层三种干扰形式,综合分析多普勒频移和外部干扰影响下跨层干扰、同层干扰和混合层干扰的信干噪比估计,并推导出相应的信干噪比关系;为减轻干扰影响的同时降低能量消耗,设计基于功率控制和干扰协同的网络吞吐量模型,进而针对性地设计了集中式迭代方法和分布式智能策略,用于求解复杂的非凸组合优化问题。仿真结果表明,该方法在无人系统部署密度、节点天线数量和组网通信容量之间保持了较好的平衡关系,一定程度上提高了无人系统的频谱利用率和抗干扰传输能力。This paper introduced a network throughput optimization method for interference and joint power control to address channel interference management and power control challenges within constrained unmanned systems.The method aimed to achieve maximum efficiency in overall energy utilization,frequency efficiency,and system performance.By examining the different duplex operation modes of the primary node in unmanned systems,the paper analyzed three types of interference:interlayer,intralayer,and mixed-type interference.It conducted a comprehensive assessment of Doppler frequency shifts,external interference effects,and signal-to-noise ratio estimations for cross-layer,intralayer,and mixed-layer interferences,deriving corresponding signal-to-noise ratio relationships.In addition,to mitigate interference and reduce energy consumption,this paper proposed a network throughput model based on power control and interference.It developed two centralized iterative methods and three distributed intelligent strategies to address the complex non-convex optimization problem.Simulation results demonstrate that the method maintains a balanced relationship between the number of unmanned systems,node antennas,and network capacity,leading to improved spectrum utilization and enhanced anti-interference transmission capabilities within unmanned systems.

关 键 词：多输入多输出 全双工 干扰协同 功率分配 无人系统 低空智联网 

分 类 号：TN92[电子电信—通信与信息系统]