【作者】 朱红婷；

【导师】 曾兴雯；

【作者基本信息】 西安电子科技大学 ， 通信与信息系统， 2010， 硕士

【摘要】 战术互联网是数字化战场的战术通信网络,在战场机动指挥控制、态势感知及无缝联通等方面发挥着重要作用。网络编码技术,允许中间节点在转发分组前对分组进行编码,从而提高网络吞吐量,目前对网络编码在无线网络中的应用研究较少。因此将网络编码应用到战术互联网中有重要意义。本文在研究网络编码的基础上,结合战术互联网的特点,将无线网络编码机制COPE应用到战术互联网中,以达到提高战术互联网网络吞吐量的目的。通过对COPE原理和设计算法的研究,在NS-2仿真软件中实现了该网络编码机制;在NS-2中建立三种不同的战术互联网拓扑模型,将COPE应用到模型中进行仿真;比较并分析应用COPE前后各模型的吞吐量变化情况。结果表明,应用网络编码COPE机制后战术互联网在吞吐量方面有较大的提高。更多还原

【Abstract】 Tactical Internet is a tactical communication network in digitized battlefield, which plays an important role in mobile command and control, situational awareness and seamless interchange. Network Coding, which allows intermediate nodes to encode packets before forwarding, improves network throughput. It is of great significance to apply network coding to the tactical Internet.In this thesis, combined with the structural characteristics of Tactical Internet, COPE which is a network coding protocol for multi-hop unicast wireless networks is applied to Tactical Internet to improve network throughput. COPE is realized in the NS-2 simulation software after analyzing COPE principles and algorithms and learning the structure of NS-2. Three different topologies, including small static cluster structure, intensive Tactical Internet and battlefield network, are modeled and their throughputs are emulated in NS-2. Then COPE is applied to the three topologies to emulate its performance. Comparing simulation results shows that COPE can improve the network throughput of Tactical Internet greatly.更多还原