| EPON中上行时隙的动态分配 |
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| 引用本文： | 朱双培,曾庆济,陈爱平. EPON中上行时隙的动态分配[J]. 光通信技术, 2003, 27(7): 10-13 |
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| 作者姓名： | 朱双培 曾庆济 陈爱平 |
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| 作者单位： | 中国电子科技集团公司第二十三研究所,上海,200437;上海交通大学电子系,上海,200030 |
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| 摘 要： | 根据以太网数据包具有变长性的特点,描述了在以太网无源光网络(Ethernet Passive Optical Network,EPON)系统中局端光线路终端(Optical Line Terminal,OLT)根据终端用户的实际需求,动态分配给各个光网络单元(Optical Network Unit,ONU)上行时隙。动态时隙的分配能充分利用上行信道,大大减少了因为变长数据包不能完全适合固定时隙而带来的带宽浪费。
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| 关 键 词： | 以太网无源光网络 光线路终端 光网络单元 变长数据包 变长时隙 动态带宽分配 |
| 修稿时间： | 2003-05-19 |
The Dynamic Allocation of Upstream Slots in EPON |
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| Zhu Shuangpei ,Zeng Qingji ,Chen Aiping. The Dynamic Allocation of Upstream Slots in EPON[J]. Optical Communication Technology, 2003, 27(7): 10-13 |
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| Authors: | Zhu Shuangpei Zeng Qingji Chen Aiping |
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| Affiliation: | Zhu Shuangpei 1,Zeng Qingji 2,Chen Aiping 1 |
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| Abstract: | This article describes optical line terminal(OLT) dynamically allocates upstream time slots to multiple optical network units(ONUs) in a point-to-multipoint Ethernet Passive Optical Network(EPON) according to the end-users' needing. Utilizing the dynamic allocation scheme effectively enhances the utilization ration of upstream time slots since most of packets from end-users are variable-length Ethernet packets. The wasted bandwidth due to unfilled in the constant slots by the variable-length packets will be significantly eliminated. |
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| Keywords: | EPON OLT ONU variable-length packet variable-length time slots dynamic bandwidth allocation |
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