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
苏彩玉 1万海斌 2韦金日3
作者信息
- 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
- 折叠
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5.7×1013 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.
Abstract
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 feed-back is studied for drone communication access congestion.A channel reuse model is established,and with the assistance of MAC con-nection 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 communi-cation 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 win-dow,the length of the communication link is determined,and in conjunction with the relevant communication data samples,the spe-cific 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 × 1013 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Key words
state feedback/UAV multiplexing channel/communication congestion/dynamic control/MAC connection protocol/queue scheduling/threshold window/link delay引用本文复制引用
基金项目
广西壮族自治区高等学校中青年教师科研基础能力提升项目(2022KY1296)
出版年
2024
NETL
NSTL
万方数据