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以太网无源光网络中的时间标签法测距 被引量:4

Timestamp Ranging of Ethernet Passive Optical Network
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摘要 基于千兆以太网的无源光网络将千兆以太网与无源光纤接入的优势相结合,实现低成本的高速、远距离接入。针对EPON系统上行链路多个ONU共享带宽的树型拓扑结构,为实现EPON系统上行TDMA接入,提出了时间标签法测距方案,论述了方案的可行性并指出其优点。 Based on Gigibit Ethernet,EPONs are emerging as a broadband access network technology that can provide a low-cost method of deploying optical access lines between a carrier's central office and a customer site. Since up-stream traffic is managed utilizing time division multiplexing access, in which transmission time slots are dedicated to the ONUs, the ranging of between OLT and ONUs is necessary. In this paper a novel timestamp ranging scheme is pro-posed and technological underpinnings of the scheme are described in details.
出处 《光通信技术》 CSCD 北大核心 2003年第7期6-9,共4页 Optical Communication Technology
基金 国家863计划("基于千兆以太网的宽带无源光网络系统"项目-2001AA122021)的资助。
关键词 以太网无源光网络 EPON 测距 时间标签 同步 ethernet passive optical network EPON ranging timestamp synchronization
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参考文献3

  • 1陈雪,张旭,刘冬,于晓映,刘培植,孙曙和.xPON系统的关键技术研究[J].数据通信,2001(2):34-37. 被引量:2
  • 2ITU-T.Recommendation G.983, 1995. Optical access networks systems based on Passive Optical network (PON) techniques.
  • 3IEEE 802.3.Ethemet in the First Mile Study Group.January, 2002 Presentation Materials. March, 2002 Presentation Materials. May,2002 Presentation Ma terials

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