摘要
设计无人机自组网媒体接入控制(Medium Access Control,MAC)协议时,需要考虑其控制开销和数据传输的可靠性。鉴于此,结合现有无线自组网多跳时分多址接入(Time Division Multiple Access,TDMA)协议和无人机自组网特点,提出了一种高效可靠的无人机自组网多跳TDMA协议。首先采用高效负载均衡的时隙请求信息上传机制,选择一个负载较小的节点转发节点时隙请求信息;然后根据相互通信的父节点删除重复节点的时隙请求信息,减少相同节点的时隙请求信息转发次数;最后通过实时更新节点时隙请求信息机制,提高节点时隙请求信息传输的可靠性。仿真结果表明,该协议在数据传输成功率、平均时延、控制开销方面优于现有协议,可较好地应用在无人机自组网中。
In designing medium access control(MAC)protocols for unmanned aerial vehicle(UAV)ad hoc networks,control overheads and reliability of data transmission are necessary to be considered.Based on the existing multi-hop time division multiple access(TDMA)protocol for wireless ad hoc networks and characteristics of UAV ad hoc networks,an efficient and reliable multi-hop TDMA protocol is proposed.The protocol adopts information uploading mechanism of time slot request which is efficient and load-balanced,as well as selects a node with a smaller load to forward its time slot request information.After that,according to the parent nodes communicating each other,the time slot request information of the duplicate node can be deleted,forwarding times of the time slot request information of the same node are reduced.Finally,by updating in real time the time slot request mechanism of the node,the reliability of message transmission of time slot request of the node can be improved.The simulation results indicate that the protocol is superior to other existing protocols in success rate of data transmission,average delay and control overheads,and it can be well applied to the UAV ad hoc networks.
作者
李其超
周逊
宋威威
任智
邹明芮
LI Qichao;ZHOU Xun;SONG Weiwei;REN Zhi;ZOU Mingrui(School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Research Center of Laser Fusion,China Academy of Engineering Physics,Chengdu 610041,China)通信作者:413979246@qq.com)
出处
《电讯技术》
北大核心
2020年第2期189-195,共7页
Telecommunication Engineering
关键词
无人机
无线自组网
多跳TDMA协议
负载均衡
unmanned aerial vehicle
wireless ad hoc network
multi-hop TDMA protocol
load-balanced
作者简介
通信作者:李其超,男,1993年生于四川隆昌,2016年于四川轻化工大学获学士学位,现为重庆邮电大学硕士研究生,主要研究方向为无人机自组网MAC协议,413979246@qq.com;周逊,男,1968年生于四川成都,博士,研究员,主要研究方向为无线网络技术及应用;宋威威,男,1993年生于河北邯郸,硕士研究生,主要研究方向为无人机自组网网关选择与切换;任智,男,1971年生于四川内江,博士(后),教授,主要研究方向为宽带无线通信网络理论与技术;邹明芮,女,1986年生于四川自贡,博士,助理研究员,主要研究方向为无线网络MAC协议。
