【作者】 胡丽丽； 孙曙和； 王伟荣；

【Author】 ~1Hu Lili,~2Sun Shuhe,~3Wang Weirong (1,3 Key Laboratory of Optical Communication and Lightwave Technologies,Ministry of Education, Beijing University of Posts and Telecommunications,100876 2 GW Technologies Co.,Ltd,100085)

【机构】 北京邮电大学光通信与光波技术教育部重点实验室； 北京格林威尔科技发展有限公司；

【摘要】 基于802.3ah标准1G EPON系统因其低成本、承载业务效率高以及易维护等独特优势已经在宽带接入领域规模商用,由于高清电视业务等需求不断增长,从而高速率、大容量的10G EPON新技术应运而生。本文简述了10G EPON的技术背景,简要介绍了10G EPON系统的主要技术问题,包括10G/1G EPON系统的共存,光波段分配方案,DBA的机制,双MAC协议栈以及MPCP层的同步,对于10G EPON系统的工程设计有着一定指导意义。最后指出了10G EPON技术中研究中还存在的问题以及10G EPON技术标准的研究对于GPON标准的促进影响。更多还原

【Abstract】 1G EPON system based on 802.3ah standard has been in commercial deployment in large scale for its special advantages,e.g low cost,high efficiency of service load,convenient maintenance.For the increasing need for HDTV and other service,the 10G EPON new technology with high speed and large capacity emerges.In this paper,10G EPON technical background is presented and some key technical problems such as 10G/1G EPON system coexistence,light wave-length allocation,DBA mechanism,dual MAC stack and MPCP synchronization are described and analyzed in detail,these are reference on 10G EPON system design and project realization.In the end,it indicates the problems about 10G EPON system to be resolved and the positive effect that the research about 10G EPON standard brings about for that of GPON standard.更多还原