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基于环状拓扑的网络时钟同步 被引量：3

Network Clock Synchronization Based on Ring Topology
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摘要 时钟同步是很多网络应用的基本要求.文中设计实现了基于环状拓扑的分布式多主机时钟同步系统.该系统使用面向单向延迟测量的Altair&Vega方法支持多台主机相互之间的时间同步,使用动态环状逻辑拓扑的控制方案,利用特有的环状拓扑上的累积误差提高系统的精度,得到了高精度的相对时钟偏移修正方案.在实验环境下进行的测试结果表明,该方法利用积累误差修正可以得到毫秒级的同步结果. Clock synchronization is a basic requirement for many network applications. In this paper, a distributed multi-host clock synchronization system based on ring topology is designed and implemented. In the proposed system, the Altair ＆ Vega method oriented to one-way delay measurement is adopted to realize the synchronization between multiple hosts, and the dynamic logic ring topology approach and the accumulated synchronous errors on the ring topology are employed to improve the system accuracy. Thus, a high-precision correcting method of relative clock skew is proposed. Test results indicate that the synchronization precision of the proposed method can be controlled in millisecond scale due to the accumulated error revision.
作者 朱海婷 丁伟 林容容
机构地区 东南大学计算机科学与工程学院
出处 《华南理工大学学报（自然科学版）》 EI CAS CSCD 北大核心 2008年第4期80-85,共6页 Journal of South China University of Technology(Natural Science Edition)
基金 国家"973"计划资助项目(2003CB314804) 华南理工大学广东省计算机网络重点实验室开放基金资助项目(CCNL200706)
关键词 时钟同步 环状拓扑 单向延迟 相对时钟偏移 clock synchronization ring topology one-way delay relative clock offset
分类号 TP393 [自动化与计算机技术—计算机应用技术]
  • 相关文献

参考文献7

  • 1林容容,程光,丁伟.基于NTP协议的时钟同步系统[C]∥第五届海峡两岸信息技术研讨会论文集.南京:东南大学,2003:288-294.
  • 2Mills D.Network time protocol (version3):specification,implementation and anlysis,RFC 1305[S].Menlo Park:Network Information Center,SRI International,1992.
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二级参考文献6

  • 1[1]Mills D.Network Time Protocol (Version 3) Specification,Implementation and Analysis[S].RFC 1305,1992-03
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同被引文献27

  • 1洪晓斌,刘桂雄,吕艺行,吴卓葵.以太网智能测控系统的XML数据交换接口设计[J].华南理工大学学报（自然科学版）,2006,34(7):55-59. 被引量：6
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  • 6D'Amico A A, Mengali U, Taponecco L. Synchronization for differential transmitted reference UWB receivers [ J ]. IEEE Transactions on Wireless Communications, 2007,6 (11) :4154-4163.
  • 7Kim Jaewoon, Yang Suckchel, Shin Yoan. A two-step search scheme for rapid and reliable UWB signal acquisition in muhipath channels [C]//Proc of IEEE International Conference on Ultra-Wideband. Zurich : IEEE ,2005 : 355-360.
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引证文献3

二级引证文献8

华南理工大学学报（自然科学版）
2008年 第4期

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