基于OPNET的机群数据链混合TDMA协议仿真  

OPNET Based Simulation of Hybrid TDMA Protocol for Helicopters Datalink

作　　者：傅妍芳[1] 张楠 魏佳宁[2] 曲少春 卢颖[1] 刘畅 Fu Yanfang;Zhang Nan;Wei Jianing;Qu Shaochun;Lu Ying;Liu Chang(School of Computer Science and Engineering Xi’an Technological University,Xi’an 710021,China;Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory,Beijing Electro-mechanical Engineering Institute,Beijing 100074,China)

机构地区：[1]西安工业大学计算机科学与工程学院,陕西西安710021 [2]北京机电工程研究所复杂系统控制与智能协同技术重点实验室,北京100074

出　　处：《系统仿真学报》2022年第9期1933-1940,共8页Journal of System Simulation

摘　　要：针对当前数据链的时隙分配问题,提出并实现了一种基于灰色关联分析法的混合时隙分配协议。通过灰色关联分析法对吞吐量、时延和当前报文缓冲区的负载程度做聚合,得到各节点综合得分,根据综合得分对时隙进行动态分配,同时采用固定时隙分配的方式保证网络中的节点最少有一个时隙可用。仿真结果表明:与固定TDMA(time division multiple access)协议和P-TDMA(priority-TDMA)协议相比,该协议在减少竞争冲突的同时,也保证了较低的时延、相对较高的吞吐量和高时隙利用率。For the current time slot allocation problem of the data link,an improved hybrid time slot allocation protocol based on grey relational analysis is proposed and implemented.Through the aggregation of throughput,delay and load of current message buffer by grey relational analysis,the comprehensive evaluation index is obtained,and the time slot is allocated dynamically.The fixed time slot allocation is also adopted to ensure that at least one time slot is available for nodes in the network.Simulation results show that compared with the fixed TDMA(time division multiple access)protocol and the P-TDMA(priority-TDMA)protocol,the proposed protocol not only reduces contention conflicts,but also guarantees a lower delay,a relatively high throughput and a high time slot utilization rate.

关 键 词：OPNET LINK-16 固定TDMA协议 混合时隙分配协议 机群数据链 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]