| 两级10G EPON系统物理层方案研究 |
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| 引用本文： | 王梓宇,黄勇林,范红.两级10G EPON系统物理层方案研究[J].南京邮电大学学报(自然科学版),2014(4):79-82. |
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| 作者姓名： | 王梓宇 黄勇林 范红 |
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| 作者单位： | 南京邮电大学光电工程学院,江苏南京210023 |
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| 基金项目： | 国家自然科学基金（61275067）资助项目 |
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| 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.
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| 关 键 词： | 两级结构 Sub-OLT 波分复用技术 10G EPON 物理层 |
Physical Layer Structure of Two-Stage 10G EPON System |
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| WANG Zi-yu,HUANG Yong-lin,FAN Hong.Physical Layer Structure of Two-Stage 10G EPON System[J].Journal of Nanjing University of Posts and Telecommunications,2014(4):79-82. |
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| Authors: | WANG Zi-yu HUANG Yong-lin FAN Hong |
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| Institution: | (School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China) |
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| Abstract: | 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. |
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| Keywords: | two-stage structure Sub-OLT WDM 10G EPON physical layer |
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