无源光网络PON技术在宽带通信中的应(论文).doc

无源光网络PON技术在宽带通信中的应用 摘 要 随着网络技术的不断发展，一些大型的在线游戏、网络高清电视、视频点播、语音通话业务、双向视频电话、高速上网等各种网络新业务的出现，成为用户对为了网络发展的主要需求之一，网络宽带化已经成为下一代接入网的必然要求，新的数字业务的发展成为网络技术发展的必然。在网络接入方面，传统的xDSL宽带接入方式不能满足上述网络接入的需要，以光纤为传输介质的PON技术成为网络接入技术发展的重要趋势。推动了PON相关的EPON、GPON技术快速发展，并且己成为电信领域的热点技术，网络宽带的速率从155Mb/S及622Mb/s的BPON(APON)到支持1.25Gb/s的EPON线路速率，成为未来宽带通信网络发展的重要趋势。 本论文首先对PON技术的起源、现状、未来进行了详细的论述，并对PON技术的原理与关键技术进行详细的阐述，其次，对EPON与GPON技术的带宽、技术方式进行全面的分析与阐述，并对二者的技术做了详细的分析与讨论。并在此基础上介绍了针对XXX市的别墅区、写字楼、农村市场宽带网络的架构进行了分析，采用PON技术实现网络宽带接入的解决方案，对城市局域网的宽带接入网络规划建设中的组网模式进行分析，并对网络的带宽预算OLT、ONU的设备规划进行详细的分析。同时以秀水南湾世家居住小区的GPON工程和金建新阳小区的EPON工程为实例，进行了网络架构的设计与分析，提出并验证了两种主流PON技术的FTTH实现方案，并对FTTH及FTTB+LAN的优缺点进行详细的论证。 关键词：宽带接入网；PON网络；GPON；EPON；光纤到户 ABSTRACT With the continuous development of network technology, a number of large-scale online games, online HD TV, video on demand, voice call service, two-way video calling, high-speed Internet and other network emergence of new business, as a user on the main demand for the development of the network First, the network has become the next generation of broadband access networks necessary requirement for the development of new digital services become inevitable development of network technology. In the network access, traditional xDSL broadband access can not meet the needs of the network access to optical fiber as the transmission medium PON network access technology to become an important trend of technological development. Promote the PON related EPON, GPON technology rapid development and has become a hot field of telecommunications technology, network broadband speed from 155Mb / S and 622Mb / s of BPON (APON) to support 1.25Gb / s line rate of EPON become future broadband communication networks important trend. In this thesis, the origin of the PON technology, present, future are discussed in detail, and the principle of PON technology and key technology in detail, secondly, on the bandwidth of EPON and GPON technology, technical means to conduct a comprehensive analysis and elab