两级10G EPON系统物理层方案研究  

Physical Layer Structure of Two-Stage 10G EPON System

作　　者：王梓宇[1] 黄勇林[1] 范红[1] 

机构地区：[1]南京邮电大学光电工程学院,江苏南京210023

出　　处：《南京邮电大学学报（自然科学版）》2014年第4期79-82,共4页Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition

基　　金：国家自然科学基金(61275067)资助项目

摘　　要：文中主要探讨了一种基于10G EPON的TDM/WDM混合组网方案:在原OLT和ONU之间插入Sub-OLT,在OLT和Sub-OLT之间采用WDM-PON技术,以10G对称速率组网;考虑到节约成本和实现推迟ONU升级的目的,在Sub-OLT和ONU之间则仍采用标准的1G EPON(TDM/TDMA技术)组网。OptiSystem的建模仿真结果表明,该方案既能保持与IEEE802.3/802.3av最大的兼容性,又能够在满足带宽增长的前提下取得成本-效益的最大化。A networking scheme in 10G EPON-based TDM/WDM hybrid network scenarios is discussed.The Sub-OLT is inserted between the OLT and ONU.WDM-PON technology is used between the OLT and the Sub-OLT,with the 10G symmetrical speed networking.Considering the cost savings and the purpose of postponing the upgrade of ONU,the standard 1 G EPON （TDM / TDMA） is still used between the SubOLT and the ONU.Simulation results of OptiSystem show that the scheme can maintain the maximum compatibility with IEEE802.3/802.3av and achieve the maximum cost-efficiency under condition of meeting the growing bandwidth.

关 键 词：两级结构 Sub-OLT 波分复用技术 10G EPON 物理层 

分 类 号：TN913.7[电子电信—通信与信息系统]