【作者】 曲艺；

【导师】 陈思国；

【作者基本信息】 吉林大学 ， 移动通信与网络系统（专业学位）， 2015， 硕士

【摘要】 伴随着最近几年“三网合一”的出现，FTTx技术也开始兴起，已经成为实现三网合一的一项关键网络技术，而EPON凭借它带宽大、经济使用等等优势，已经被大面积使用。三网合一指的就是，将原本分开设计、单独运行的互联网、电信网以及有线电视网三大主要网络互相关联、取长补短，进行融合。与这个过程相对应的，这三种不同网络的业务、市场或者产业也伴随着网络的融合，彼此关联，当三网融合发展到一定程度后，存在于三大网络的行业和市场之间的界限将会逐渐模糊，形成一个统一的网络，依靠全数字化网络设备对数据、语音或者视频、图像等全部业务的通信提供支持。FTTx技术的实质即用光纤代替铜线，传输媒介使用光纤，因而能够直接联通到用户的终端设备上，从而达到“全光网络”，其主要网络技术即是以太无源光网。以太网无源光网络，是Ethernet Passive Optical Network的简写．即EPON，其作为新近兴起的光纤接入网技术，用户网络拓扑结构为点到点结构，通过无源光纤达到数据、语音和视频的全业务接入目的。无源光网络(PON)技术应用在物理层上，以太网协议应用在链路层上。由于FTTx能够使得以太网和PON技术进行十分的结合，所以是与IP业务的宽带技术十分适合的技术。本文首先将EPON和EoC技术的原理、关键技术以及其优势进行了简单的阐述。其次分析了目前三网融合技术的现状，总结其中的业务模式等方面内容，第三步将现存的三网融合方案进行了对比，研究其实施过程中EPON的规划要点，对ONU的设备类型、业务类型、协议要求等要素进行分析，最后总结并展望了基于EPON和EoC两项技术的三网融合概况。更多还原

【Abstract】 As in recent years, the concept of three nets FTTx technology also arises at the historicmoment, as its main network technology, EPON system relying on its large bandwidth,economical, and many other characteristics are widely used at present.Of the so-called three nets are originally independent operation of traditionaltelecommunication network design, computer Internet and cable television network will bemutual penetration and mutual fusion. Accordingly, three kinds of different business, marketand industry will also be mutual infiltration and mutual confluence, three big business to splitthe boundaries between the three major market and industry gradually become blurred,gradually formed a unified network system, and the fully digital network infrastructure tosupport, including data, voice and video image, all the business communication.FTTx technology goal is to use optical fiber to replace the traditional copper wire, usingoptical fiber as transmission medium directly to the user terminal equipment, to realize in thetrue sense of the all all-optical network. FTTx network technology is mainly Ethernet passiveoptical network. Ethernet Passive Optical Network (Ethernet Passive Optical Network, EPON)is a new kind of Optical fiber access Network technology, the use of point to multipoint userNetwork topology structure, use of Passive Optical fiber for data, voice and video of thewhole business access purpose. It had been used in the physical source optical network (PON)technology, the link layer using the Ethernet protocol. Due to its Ethernet and PONtechnology perfect combination, thus became the very suitable for business of broadband IPtechnology.In this paper, first of all, the implement principle of EPON and EoC, key technology andtechnical advantages are briefly introduced. First analysis of the present condition of the threenets fusion technology, summarizes the aspects, such as business model, and compare threenets fusion scheme, and the implementation of the key points in the process of EPONequipment type, business type, protocol of ONU requirement elements such as, finally, basedon the triple play of EPON and EoC is summarized and prospected.更多还原