基于状态反馈的无人机通信接入拥塞动态控制研究  

Research on Dynamic Control of UAV Communication Access Congestion Based on State Feedback

作　　者：苏彩玉 万海斌[2] 韦金日[3] SU Caiyu;WAN Haibin;WEI Jinri(School of Electronic Information,Guangxi Vocational&Technical Institute of Industry,Nanning 530001,China;School of Computer,Electronic and Information,Guangxi University,Nanning 530004,China;Continuous Education College,Guangxi Industrial Vocational and Technical College,Nanning 530001,China)

机构地区：[1]广西工业职业技术学院电子信息学院,南宁530001 [2]广西大学计算机与电子信息学院,南宁530004 [3]广西工业职业技术学院继续教育学院,南宁530001

出　　处：《计算机测量与控制》2024年第6期104-110,共7页Computer Measurement &Control

基　　金：广西高校中青年教师科研基础能力提升项目(2022KY1296)。

摘　　要：为解决复用信道内的通信接入拥塞问题,需要控制无人机通信链路中数据信息样本的实时累积量,故基于状态反馈研究无人机通信接入拥塞动态控制方法;建立信道复用模型,并借助MAC连接协议,定义通信数据包,实现对无人机集群通信节点接入行为的处理;按照状态反馈模型完善状态观测器结构,求解通信数据的离散化反馈表达式,在划分通信优先级条件的同时,确定无人机队列的实时调度关系,完成无人机通信行为控制;根据动态阈值窗口定义条件,确定通信链路长度,再联合相关通信数据样本,计算链路时延量的具体数值,完成动态控制方法的设计;实验结果表明,应用设计方法可将通信链路中数据信息样本实时累积量控制在5.7×10^(13)MB之下,能够较好解决复用信道内的通信接入拥塞问题,符合实际应用需求。To address the issue of communication access congestion in the channel reuse,it is necessary to control the real-time cumulative amount of data samples in the communication links of drones.Therefore,a dynamic control method based on state feedback is studied for drone communication access congestion.A channel reuse model is established,and with the assistance of MAC connection protocol,communication data packets are defined to achieve the access behaviors of communication nodes in a drone cluster.Based on the state feedback model,the structure of a state observer is improved to solve the discrete feedback expression of communication data.At the same time,the communication priority conditions are divided to determine the real-time scheduling relationship of drone queues and complete the control of drone communication behaviors.By defining conditions based on a dynamic threshold window,the length of the communication link is determined,and in conjunction with the relevant communication data samples,the specific value of the link delay is calculated to design the dynamic control method.Experimental results demonstrate that this design method can control the real-time cumulative amount of data samples in the communication link below 5.7×10^(13)Mb,it effectively solves the problem of communication access congestion in the channel reuse and meets practical application requirements.

关 键 词：状态反馈 无人机复用信道 通信拥塞 动态控制 MAC连接协议 队列调度 阈值窗口 链路时延 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]