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基于网络编码的PON中编码机制优化设计 被引量：7

Optimization design of encoding schemes for network coding-based passive optical networks
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摘要 接入网业务本地化趋势使得NC(网络编码)在PON(无源光网络)中的应用越来越广泛,而数据包长度不同将导致网络编码包传输过程中的带宽浪费问题。为了提高带宽利用率,减少OLT(光线路终端)能耗,提出了一种新型的包队列编码方式及其实现方案。仿真结果表明所提出的编码机制及其实现方案提高了带宽利用率,有效地降低了解码包对ONU(光网络单元)内存的占用,优化了系统的下行吞吐量并提高了OLT端的节能效率。 The localization of access network services has enabled Network Coding （NC）to be more and more broadly applied in Passive Optical Networks （PON）.However,data packets with different lengths result in the waste of bandwidth in the trans-mission of encoding packets.In order to improve the bandwidth utilization rate and reduce the energy consumption at the Opti-cal Line Terminal （OLT）,this paper proposes a novel encoding scheme for packets queue and its implementation.Simulation results show that the proposed encoding and implementation scheme improves the bandwidth utilization rate,effectively reduces the occupation of ONU memory by the decoding packets and optimizes the system downlink throughput and the energy efficien-cy of the OLT.
作者 赵继军 白巍 冯楠 任丹萍
机构地区 河北工程大学信息与电气工程学院
出处 《光通信研究》 北大核心 2014年第3期38-41,共4页 Study on Optical Communications
基金 河北省教育厅科学研究计划重点项目(ZH2012020) 河北省高等学校科学技术研究项目(QN20131064)
关键词 网络编码 无源光网络 编码机制 节能效率 NC PON encoding scheme energy efficiency
分类号 TN929.18 [电子电信—通信与信息系统]
  • 相关文献

参考文献7

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共引文献4

同被引文献57

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引证文献7

二级引证文献10

光通信研究
2014年 第3期

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