一种中心节点调度时隙分配的无人机自组网TDMA协议  

A TDMA Protocol for Flying Ad Hoc Network with Central Node Scheduling Time Slot Allocation

作　　者：姚毅[1] 任智[1] 陈春宇 邱金 YAO Yi;REN Zhi;CHEN Chunyu;QIU Jin(School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《电讯技术》2024年第9期1486-1493,共8页Telecommunication Engineering

基　　金：国家自然科学基金资助项目(61971080)。

摘　　要：针对现有无人机自组网协议中,集中式树形网络中控制时隙存在冗余、帧中数据时段占比较小的问题,提出了一种基于中心节点调度时隙分配的无人机时分多址接入(Time Division Multiple Access,TDMA)协议。该协议采用基于全网拓扑感知的时隙分配机制调整控制时段的帧结构与时隙顺序,基于中心节点调度的控制时隙复用机制提高控制时隙的利用率,缩短控制时段总长度以提高数据时段占比。与BiPi-TMAC(Bidirectional-Pipelined TDMA MAC)协议和ELDM-TDMA(Efficient and Low Delay Multi-hop TDMA)协议相比,该协议的数据平均时延和控制开销降低了9.6%和21.9%,网络吞吐量提高了10.5%,在无人机自组网场景中表现出良好的性能。A flying ad hoc network(FANET)time division multiple access(TDMA)protocol based on central node scheduling is proposed to address the issues of redundant control slots and small data slot proportions in centralized tree-based networks in the existing FANET medium access control(MAC)protocols.This protocol adjusts the frame structure and slot order of control slots using a slot allocation mechanism based on whole network topology awareness.It also improves the utilization of control slots through a control slot multiplexing mechanism based on central node scheduling,thereby the total length of the control period is reduced and the proportion of data slots is increased.Compared with those of the Bidirectional-Pipelined TDMA MAC(BiPi-TMAC)protocol and Efficient and Low Delay Multi-hop TDMA(ELDM-TDMA)protocol,the average data delay and control overhead are reduced by 9.6%and 21.9%respectively,the network throughput is improved by 10.5%,showing excellent performance in flying ad-hoc network scenarios.

关 键 词：无人机自组网(FANET) 时分多址接入 控制开销 时隙复用 

分 类 号：TN929[电子电信—通信与信息系统]