下一代接入网组网技术研究

发布时间：2018-01-05 02:23

本文关键词：下一代接入网组网技术研究　出处：《北京邮电大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着移动互联网的发展,大数据业务的兴起,人们需要一个在任何时间、任何地点以及以任何形式都可以进行通信信宽带接入网,可以说为了应对用户日益增长的需求下一代接入网面临着较大的挑战。目前较常用的接入技术主要有光纤接入和无线接入。光纤接入的方式可以提供足够大的带宽,并且具有较低的误码率、防电磁干扰能力强等特性,但传输路径固定、灵活性较差；无线接入方式能够为用户提供高度灵活、无处不在的网络接入,但由于无线自身的特点导致其传输数据速率受限、易受干扰。可以说光纤通信与无线通信在各自的应用领域都有不错的发展,但是如何能够满足用户日益增长的需求,为用户提供高性价比的服务,将两个技术进行融合,优势互补,是业界面临的问题之一。为了解决光接入方式与无线接入方式各自的不足,提出了光接入与无线接入异构融合的网络。目前,光与无线融合是国际上研究与开发的下一代接入网技术的热点之一,其中具代表性的是融合接入网,它是基于无线Mesh网络和PONFiWi (Fiber-Wireless)无源光网络)的一种光与无线融合组(Passive Optical Network,网。虽然关于光与无线融合接入网已经得到了广泛关注,有较好的发展前景,但关于其组网问题业界尚无统一定论。网络虚拟化技术为融合问题提供了一种解决方案。网络虚拟化技术将互联网服务提供商)分离为两大独立的部分：InPISP (Internet Service Provider,基础设施提供商)和(Infrastructure Provider,Provider,服务提供商),真正意义上实现了控制与转发分离。SP (Service本文首先分析了当前接入网的发展需求以及对下一代接入网提出的挑战,并对下一代接入网的研究进展做了详细的介绍,包括下一代无线接入网以及下一代光接入网,通过分析阐述下一代光与无线融合接入网发展的必然趋势。本文重点研究对象是融合接入网,FiWi在第三章提出了光与无线融合接入网组网架构以及网络虚拟化FiWi模型,并结合具体的多路径接入问题阐述网络虚拟化技术的应用,以及虚拟资源管理控制器的工作流程。本文在第四章利用SDN/OpenFlow技术进行组网来验证虚拟网络之间的隔离性并对FiWi网络多路径接入的网络性能进行了仿真,验证了基于网络虚拟化技术的FiWi融合接入网的优越性能。在最后对本文所做工作进行了总结并对未来接入网的发展进行了展望。
[Abstract]:With the development of mobile Internet, the rise of big data business, people need one at any time, any place, in any form can communication channel broadband access network, it can be said in response to the growing demand of users in next generation network is facing greater challenges. Currently more commonly used optical fiber access technology access and wireless access. Optical access can provide enough bandwidth, and has low BER, anti electromagnetic interference ability and other characteristics, but the transmission path is fixed, poor flexibility; wireless access mode can provide users with highly flexible and ubiquitous network access, but because of their own due to the characteristics of wireless the data transmission rate is limited, vulnerable to interference. It can be said that the optical fiber communication and wireless communication have a good development in their respective application domain, but how to meet the users The growing demand, to provide high quality service for the users, the two technology integration, complementary advantages, is one of the industry's problems. In order to solve the problems of optical access and wireless access of the proposed optical access and wireless access in heterogeneous network. At present, optical and wireless converged is one of the hot spots the research and development of next-generation access network technology in the world, which is representative of the converged access network, which is based on PONFiWi and wireless Mesh network (Fiber-Wireless) passive optical network) is a kind of optical and wireless converged group (Passive Optical Network, while on the network. Optical and wireless converged access network has been attention, there are good prospects for development, but on the networking industry. There is no unified theory of network virtualization technology for fusion provides a solution for network virtualization technology will be. The network service provider) is separated into two independent parts: InPISP (Internet Service Provider, infrastructure providers (Infrastructure) and Provider, Provider, service provider), to achieve a true sense of separation of control and forwarding.SP (Service in this paper the development needs of the current access network and the next generation network.
The challenges and research progress of the next generation network is introduced in detail, including the next generation of wireless access network and the next generation optical access network, through the analysis of the trend of the next generation of optical and wireless converged access network development. The research object of this paper is focused on integration of access network, FiWi proposed optical network architecture and wireless integrated access network and network virtualization FiWi model in the third chapter, combined with the application of multi path access specific description of network virtualization technology, and workflow of virtual resource management controller. In the fourth chapter of this paper is to verify the performance of the network virtual network between the network and the access path isolation the FiWi network is simulated using SDN/OpenFlow technology to verify the superior performance of network virtualization technology FiWi integration based on access network. In the end of the paper, we summarize the work and The development of the future access network is prospected.

【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN915.6

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