• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optical fiber technology >Efficient traffic grooming with dynamic ONU grouping for multiple-OLT-based access network
【24h】

Efficient traffic grooming with dynamic ONU grouping for multiple-OLT-based access network

机译：动态ONU分组的高效流量疏导，用于基于多个OLT的接入网

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fast bandwidth growth urges large-scale high-density access scenarios, where the multiple Passive Optical Networking (PON) system clustered deployment can be adopted as an appropriate solution to fulfill the huge bandwidth demands, especially for a future 5G mobile network. However, the lack of interaction between different optical line terminals (OLTs) results in part of the bandwidth resources waste. To increase the bandwidth efficiency, as well as reduce bandwidth pressure at the edge of a network, we propose a centralized flexible PON architecture based on Time-and Wavelength-Division Multiplexing PON (TWDM PON). It can provide flexible affiliation for optical network units (ONUs) and different OLTs to support access network traffic localization. Specifically, a dynamic ONU grouping algorithm (DGA) is provided to obtain the minimal OLT outbound traffic. Simulation results show that DGA obtains an average 25.23% traffic gain increment under different OLT numbers within a small ONU number situation, and the traffic gain will increase dramatically with the increment of the ONU number. As the DGA can be deployed easily as an application running above the centralized control plane, the proposed architecture can be helpful to improve the network efficiency for future traffic-intensive access scenarios. (C) 2015 Elsevier Inc. All rights reserved.
机译：快速的带宽增长催生了大规模的高密度接入场景，其中可以采用多无源光网络（PON）系统集群部署作为满足巨大带宽需求的合适解决方案，尤其是对于未来的5G移动网络。但是，不同的光线路终端（OLT）之间缺乏交互，导致部分带宽资源浪费。为了提高带宽效率并减少网络边缘的带宽压力，我们提出了一种基于时分和波分复用PON（TWDM PON）的集中式灵活PON架构。它可以为光网络单元（ONU）和不同的OLT提供灵活的隶属关系，以支持接入网络流量本地化。具体而言，提供了动态ONU分组算法（DGA），以获取最小的OLT出站流量。仿真结果表明，在较小的ONU数情况下，DGA在不同的OLT数下平均获得25.23％的流量增益增量，并且流量增益将随ONU数的增加而急剧增加。由于DGA可以轻松地作为在集中控制平面上运行的应用程序进行部署，因此所提出的体系结构可以帮助提高未来流量密集型访问场景的网络效率。 （C）2015 Elsevier Inc.保留所有权利。

著录项

  • 来源
    《Optical fiber technology》 |2015年第decaptab期|220-228|共9页
  • 作者

    Zhang Shizong; Gu Rentao; Ji Yuefeng; Wang Hongxiang;

  • 作者单位

    Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, Beijing Key Lab Network Syst Architecture & Conve, Beijing 100876, Peoples R China;

    Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, Beijing Key Lab Network Syst Architecture & Conve, Beijing 100876, Peoples R China;

    Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China;

    Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Passive Optical Network; Software Defined Networking; Network optimization; Traffic grooming;

    机译：无源光网络;软件定义网络;网络优化;交通疏导;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号