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一种利用节点移动信息的空基自组网路由协议

发布时间:2018-05-07 16:22

  本文选题:空基自组网 + 路由协议 ; 参考:《电子科技大学》2014年硕士论文


【摘要】:随着新一代战机、预警机、无人机等先进武器系统装备军队,构建一个高速、大容量、宽带以及动态的空基网络对于提高各战斗平台间的信息共享、协同作战能力具有重大的意义。利用MANETs技术构建空基自组网以实现高速运动的空中多平台互联是当前的一个研究热点。由于空中节点的高速运动、拓扑动态变化、节点间距离远、通信链路不可靠等因素,空基自组网的研究面临着多种技术难题。本文重点研究应用于空基自组网的路由协议,主要内容包括以下几方面:第一,针对传统Ad Hoc路由协议无法满足空基自组网在高动态拓扑下低延迟、低路由开销、高成功投递率的要求,研究了一种利用节点移动信息的路由协议(MARP/MDP)。该协议利用节点已知的移动信息预测网络拓扑变化,增强对动态拓扑的适应性及减少路由开销。根据该协议的核心思想,设计协议的具体过程,包括拓扑预测机制、实际拓扑探测机制、差异信息通知机制、路由计算方法以及协议的数据结构等,并提出一种利用网络已知拓扑和分组重复统计来减轻广播风暴的方法。第二,利用QualNet仿真软件对MARP/MDP、AODV、OLSR、LAR协议的性能进行对比分析。结果表明,MARP/MDP协议的性能优于其它三种协议,本文提出的广播风暴减轻机制有效提高了MARP/MDP协议的性能。MARP/MDP协议能够适应动态的网络拓扑,在网络拓扑变化剧烈的情况下,保持较高的分组成功投递率和较低的平均端到端延迟;在网络流量增加的情况下,MARP/MDP的丢包率和路由开销增加不大;在非理想通信环境中,MARP/MDP依然能够保持良好的性能。第三,设计了一种在Linux操作系统下实现MARP/MDP路由协议的方案,搭建开发测试平台并实现了MARP/MDP路由协议。节点首先根据预测拓扑表生成的路由转发表发送数据,在实际拓扑与预测拓扑存在差异情况下能够发现差异信息并修正预测拓扑,计算出有效可靠的路由。实验结果表明,本方案设计正确实现了MARP/MDP协议的功能。
[Abstract]:With the new generation of fighter planes, AWACS, UAVs and other advanced weapon systems equipped with the military, building a high-speed, large capacity, broadband and dynamic space-based network to enhance the sharing of information among combat platforms, Cooperative combat capability is of great significance. Using MANETs technology to construct space-based ad hoc networks to realize high-speed aerial multi-platform interconnection is a hot research topic at present. Because of the high speed movement of air nodes, the dynamic change of topology, the distance between nodes and the unreliable communication links, the research of space-based ad hoc networks is faced with many technical problems. This paper focuses on the routing protocols applied in space-based ad hoc networks. The main contents are as follows: first, the traditional Ad Hoc routing protocols can not meet the low latency and low routing overhead of space-based ad hoc networks under high dynamic topology. In order to meet the requirement of high delivery rate, a routing protocol based on node mobility information (MARP / MDP) is proposed. This protocol uses the known mobile information to predict the network topology change, enhances the adaptability to the dynamic topology and reduces the routing overhead. According to the core idea of the protocol, the specific process of designing the protocol includes topology prediction mechanism, actual topology detection mechanism, differential information notification mechanism, routing calculation method and the data structure of the protocol, etc. A method of reducing broadcast storms by using network topology and packet repetition statistics is proposed. Secondly, the performance of MARP / MDP / AODV / OLSR / LAR protocol is compared and analyzed by using QualNet simulation software. The results show that the performance of MARP / MDP protocol is better than that of the other three protocols. The broadcast storm mitigation mechanism proposed in this paper can effectively improve the performance of MARP/MDP protocol .MARP / MDP protocol can adapt to dynamic network topology. It maintains high packet delivery rate and low average end-to-end delay. The packet loss rate and routing overhead of MARP / MDP are not much increased when network traffic increases. In non-ideal communication environment, MARP / MDP can still maintain good performance. Thirdly, a scheme of implementing MARP/MDP routing protocol under Linux operating system is designed, and the development and test platform is built and the MARP/MDP routing protocol is implemented. First, the node sends data according to the routing forwarding table generated by the predictive topology table. When there are differences between the actual topology and the predicted topology, the difference information can be found and the predictive topology can be corrected, and an effective and reliable route can be calculated. The experimental results show that the MARP/MDP protocol is implemented correctly.
【学位授予单位】:电子科技大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:E96;TN915.04

【参考文献】

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相关硕士学位论文 前1条

1 朱辉;Linux内核崩溃转储机制的实现[D];电子科技大学;2013年



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