Network clock frequency synchronization

Omer Gurewitz, Israel Cidon, Moshe Sidi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations


The emergence of network convergence emphasizes the need to support distributed synchronous servers such as TDMoIP (pseudo-wire) and 3G cellular gateways over a packet switched infrastructure. Consequently, we formalize the problem of network wide clock frequency synchronization and introduce novel and efficient algorithms to synchronize the frequency among all the clocks in the network with respect to a single frequency. The common thread of our solutions is that they take a network-wide view that accounts for all the clocks in the network and measurements taken over all links to estimate the frequency difference of each clock with respect to the reference clock. The various presented algorithms introduce different trade-offs between the accuracy and the computation complexity. While all our schemes are global, they employ simple pair-wise measurements between neighboring nodes. Consequently, all the algorithms presented in the paper, are simple, easy to implement and require a modest amount of measurement and control traffic.

Original languageEnglish
Title of host publicationProceedings - INFOCOM 2006
Subtitle of host publication25th IEEE International Conference on Computer Communications
StatePublished - 1 Dec 2006
Externally publishedYes
EventINFOCOM 2006: 25th IEEE International Conference on Computer Communications - Barcelona, Spain
Duration: 23 Apr 200629 Apr 2006

Publication series

NameProceedings - IEEE INFOCOM
ISSN (Print)0743-166X


ConferenceINFOCOM 2006: 25th IEEE International Conference on Computer Communications

ASJC Scopus subject areas

  • General Computer Science
  • Electrical and Electronic Engineering


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