面向Link16的QualNet与虚拟机信息交互接口设计与实现

doi:10.12382/bgxb.2022.1217

摘要/Abstract

摘要：

Link16是美国国防部采用的高速视距战术数据链,广泛应用于美国海军、联合部队和北约部队,针对其开展测试评估具有重要军事意义。通过硬件在环技术将Link16实物设备接入到仿真测试中,可有效提高测试结果的真实性和准确性。然而当测试场景需要进行实物设备组网测试时,仍会带来成本问题。为此,提出一种面向QualNet MAC层的Link16专属模型以及与之匹配的虚拟机信息交互接口。该模型可高逼真模拟Link16通信行为,实现Link16节点竞争接入、时隙划分、NPG分组等功能。并基于数据分布式服务实现了虚拟机交互接口,将运行在虚拟机的Link16设备模型接入QualNet测试场景。实验测试结果表明,所设计模型具有较高真实性和准确性且接口引入延时不超过1ms,为大规模数据链网络测试提供一种新方法。

关键词: 交互接口, Link16数据链, 虚拟机, QualNet MAC层, 网络仿真

Abstract:

Link16 is a high-speed line-of-sight tactical data link adopted by the U.S. Department of Defense and is widely used in the U.S. Navy, joint forces, and NATO forces, for which testing and evaluation is of military importance. Integrating physical Link16 equipment into simulation testing through hardware-in-the-loop technology can effectively improve the realism and accuracy of test results. However, the cost issue still arises when physical equipment networking test is required in the testing scenario. Therefore, a Link16-specific model based on QualNet MAC layer and a matching virtual machine information interactive interface are proposed. This model can realistically simulate Link16 communication behavior, achieve the functions such as node competition access, time slot division, and NPG grouping. Based on data distributed services, the virtual machine and the QualNet simulation server are connected through this interface, thereby incorporating the Link16 equipment model running on the virtual machine into the QualNet testing scenario. Experimental results demonstrate that the proposed model has high realism and accuracy, and the interface introduces a delay of no more than 1ms, providing a new method for large-scale data link network testing.

Key words: interactive interface, Link16 data link, virtual machine, QualNet MAC layer, network simulation

中图分类号:

TP391.9

杨昊伟, 龚鹏, 张继豪, 王卫东, 唐飞喜, 周子骄, 张广为. 面向Link16的QualNet与虚拟机信息交互接口设计与实现[J]. 兵工学报, 2024, 45(4): 1186-1195.

YANG Haowei, GONG Peng, ZHANG Jihao, WANG Weidong, TANG Feixi, ZHOU Zijiao, ZHANG Guangwei. Design and Implementation of Information Interactive Interface between QualNet and Virtual Machine for Link16[J]. Acta Armamentarii, 2024, 45(4): 1186-1195.

图/表 19

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结构体名称	参数(部分)	说明
MacDataLink16	信道序号;MAC层指针;当前状态;NPG信息;时隙信息;数据缓存;计时器消息	用于节点存储Link16相关数据,是协议核心结构体
Link16NPGInfo	NPG地址;时隙类型;延时;封装格式;接入方式;NPG名称	记录NPG相关信息
Link16SlotInfo	时隙类型;NPG地址;封装格式;接入方式;持续时间	记录时隙相关信息

结构体名称	参数(部分)	说明
MacDataLink16	信道序号;MAC层指针;当前状态;NPG信息;时隙信息;数据缓存;计时器消息	用于节点存储Link16相关数据,是协议核心结构体
Link16NPGInfo	NPG地址;时隙类型;延时;封装格式;接入方式;NPG名称	记录NPG相关信息
Link16SlotInfo	时隙类型;NPG地址;封装格式;接入方式;持续时间	记录时隙相关信息

结构体名称	参数(部分)	说明
Link16Header	源地址;目的地址;网络类型;	模拟Link16消息头部信息
Link16Message	同步标志位;精确定时标志位;头部	模拟Link16消息信息
Link16PacketInfo	源地址;目标地址;目标NPG;发送接口;持续时间	存储Link16数据包信息,用于QualNet中信息交互

结构体名称	参数(部分)	说明
Link16Header	源地址;目的地址;网络类型;	模拟Link16消息头部信息
Link16Message	同步标志位;精确定时标志位;头部	模拟Link16消息信息
Link16PacketInfo	源地址;目标地址;目标NPG;发送接口;持续时间	存储Link16数据包信息,用于QualNet中信息交互

结构体名称	参数(部分)	说明
Link16FragQueue	源节点号;目的节点号;目标NPG;碎片数据;当前数据信息;总大小	记录碎片数据队列信息
Link16FragData	负载;实际大小;虚拟大小	碎片数据缓存