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A Survey of Clock Synchronization Over Packet-Switched Networks

Lévesque, M and Tipper, D (2016) A Survey of Clock Synchronization Over Packet-Switched Networks. IEEE Communications Surveys and Tutorials, 18 (4). 2926 - 2947.

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Abstract

© 2016 IEEE. Clock synchronization is a prerequisite for the realization of emerging applications in various domains such as industrial automation and the intelligent power grid. This paper surveys the standardized protocols and technologies for providing synchronization of devices connected by packet-switched networks. A review of synchronization impairments and the state-of-the-art mechanisms to improve the synchronization accuracy is then presented. Providing microsecond to sub-microsecond synchronization accuracy under the presence of asymmetric delays in a cost-effective manner is a challenging problem, and still an open issue in many application scenarios. Further, security is of significant importance for systems where timing is critical. The security threats and solutions to protect exchanged synchronization messages are also discussed.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Lévesque, M
Tipper, Ddtipper@pitt.eduDTIPPER
Date: 1 October 2016
Date Type: Publication
Journal or Publication Title: IEEE Communications Surveys and Tutorials
Volume: 18
Number: 4
Page Range: 2926 - 2947
DOI or Unique Handle: 10.1109/comst.2016.2590438
Schools and Programs: School of Information Sciences > Telecommunications
Refereed: Yes
Article Type: Review
Date Deposited: 30 Jun 2017 15:05
Last Modified: 28 Oct 2017 11:55
URI: http://d-scholarship.pitt.edu/id/eprint/32584

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