战术数据链网络资源动态管理技研究

发布时间：2018-03-09 08:06

本文选题：动态接入　切入点：动态时隙分配　出处：《北京交通大学》2014年硕士论文　论文类型：学位论文

【摘要】：数据链由消息格式、链路协议和传输通道构成,主要功能是完成武器系统、指控系统与传感器之间的实时信息交换,并且处理火力控制、指控控制和战场态势等战术信息。作为主战武器、指挥控制系统与传感器无缝连接的重要纽带,数据链是实现信息系统与武器系统一体化的重要手段和有效途径,它已成为提高武器系统信息化水平和整体作战能力的关键。网络资源动态管理是数据链的核心内容,优秀的网络管理方法和高效的接入算法能够有效的降低端到端延时,显著的增加网络吞吐量,大大的提高数据包的投递率,对整个网络的性能有很大的提升。本文主要研究了Link22的动态接入技术,提出ATH-TDMA和SWAP-TDMA两种动态时隙分配算法,其中前者的时隙转让过程发生在业务时隙相邻的节点之间,后者的时隙转让发生在整个网络循环结构中。同时,本文根据排队论理论模型提出了时隙评估算法,使用静态和动态两种评估手段,预测下一时帧某个节点的时隙状态。最后,使用网络仿真工具OPNET对Link22系统和两个动态时隙分配算法进行建模仿真,通过仿真,得到两个算法的时延、吞吐量、时隙利用率和丢包率等性能,并与静态时隙分配算法进行比较,证明了算法的合理性和可靠性。
[Abstract]:The data link is composed of message format, link protocol and transmission channel. The main function of the data link is to complete the real-time information exchange between the weapon system, the command system and the sensor, and to handle fire control. As an important link between command and control system and sensor, data link is an important means and effective way to realize the integration of information system and weapon system. It has become the key to improve the information level of weapon system and the overall combat capability. Dynamic management of network resources is the core of data link. Excellent network management methods and efficient access algorithms can effectively reduce end-to-end delay, significantly increase network throughput, and greatly improve the delivery rate of data packets. In this paper, the dynamic access technology of Link22 is studied, and two dynamic slot allocation algorithms, ATH-TDMA and SWAP-TDMA, are proposed. The time slot transfer process of the former occurs between adjacent nodes. The time slot transfer of the latter occurs throughout the network cycle structure. At the same time, based on the queuing theory model, a slot evaluation algorithm is proposed, which uses static and dynamic evaluation methods to predict the slot state of a node in the next frame. Finally, the network simulation tool OPNET is used to model and simulate the Link22 system and two dynamic slot allocation algorithms. Through simulation, the delay, throughput, slot utilization and packet loss rate of the two algorithms are obtained. Compared with the static slot allocation algorithm, the rationality and reliability of the algorithm are proved.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.07

【参考文献】