【作者】 周义；

【导师】 冯文江；

【作者基本信息】 重庆大学 ， 电路与系统， 2007， 硕士

【摘要】 战术互联网是一种以Ad Hoc网络技术为基础,无中心、自组织、多跳共享的无线网络。作为一种新型的无线移动网络,战术互联网以其特有的无需事先架设网络设施、可快速展开、抗毁性好等特点,其军事应用价值无庸置疑,在外军已得到广泛使用。由于我国对Ad Hoc网络的研究起步晚,一些技术尚待解决,Ad Hoc技术在我军战术网络中还未有成熟应用。本文在分析战术互联网的组成与连接关系的基础上,结合我军通信装备的技术现状,针对战术互联网的网络结构和密钥管理展开研究,应用OPNET网络仿真软件,对我军战术互联网进行了建模与仿真研究,重点研究网络结构变化对战术互联网的性能影响,为我军战术互联网建设和性能评估提供技术支持,保障在数字化战场条件下战术互联网的稳定运行,实现“打得赢”的目标。(1)在总结战术互联网组成、连接关系和技术特点的基础上,分析了战术互联网的业务要求、技术要求和军事要求。结合战术互联网在技术和实施层面上存在的固有问题,提出战术互联网建设应根据我军通信装备的技术现状,首先解决好网络架构和密钥管理等关键技术。(2)在分析外军应用较为成熟的战术互联网网络架构的基础上,提出我军战术互联网建设应采用多层多级网络架构。多层多级战术互联网架构既可保证低级单位甚至单兵在不需要使用太多资源的前提下群内正常通信的需要,又可满足特殊情况下的跨层越级指挥和协同指挥的通信需求。(3)以多层多级战术互联网结构为研究对象,结合战术互联网固有的安全问题和目标要求,提出了一种新型的分布式集中式密钥管理方案,符合部队战术网络的安全要求。(4)利用OPNET仿真工具建立了两套简单的战术互联网节点模型,分别对不同的网络规模、节点运动速度和网络负载等进行了仿真,获得了端到端时延、媒体接入时延、网络延时、网络负载、网络开销、接收误码率等网络性能参数。本文是对我军战术互联网进行的一种探索性研究,研究成果可望应用到我军连排战术网络组建中,可以为我军战术互联网的实现和性能评估提供仿真支持,为战术互联网的设计和规划提供参考。更多还原

【Abstract】 Tactical Internet (TI), base on Ad Hoc technology, is an acentric, self-organized and multi-hop wireless network. TI can be rapidly deployed without any pre-existing network infrastructure or centralized administration. Moreover, it is destruction-proof. Undoubtedly, it is of great value in military communications. However, while the foreign military forces were commonly equipped with TI, our PLA has not made full use of it due to some technical difficulties. This thesis puts forward a new network structure for TI after analyzing the components and the interconnection of the Tactical Internet. Also, a distributed-centralized key management is proposed. All the simulations, especially what impact the network structure’s variation exerts on the performance, were finished in OPNET. The research provides technological support for our TI construction and evaluation, guarantees TI’s stability in the digital battlefield and eventually helps us win.The content of this thesis is listed below:(1) On the base of introducing the general knowledge and main technology of TI,Key explains the technology of TI’s network structure and key management, unifies new Research results and army’s actual. Made it clear that the first thing is to mange network structure and the key well.(2) After inspecting the foreign mature TI, suggested developing our own TI in a multilayer and multilevel way, which not only guarantees small union, even individual’s communication with little network resource, but also the inter-layer and cross-level one.(3) In network secrity, according as multilayer-multilevel network structure put forward a distributed-centralized key management. The security request of TI is up to the request.(4) Established two TI nodes models and simulated them in various scopes, velocities and loads. Such experiments simulate those that influence TI’s performances as the node’s amount and movement speed, loads in the network and so on. Some data and diagrams including Delay, Media Access Delay, Load, ETE Delay, Throughout, Overhead and bit error rate are received.The paper explores an approach to study TI. The conclusions can be applied to platoon network or company network in PLA, and can provide simulative technological support for implementation and performanceestimate of the TI. And people may also refer to the results of this dissertation to plan and design the TI.更多还原