A probabilistic approach to clock synchronization of cascaded network elements

A probabilistic approach to clock synchronization of cascaded network elements

Precision time protocol (PTP) synchronizes clocks of networked elements by exchanging messages containing precise time-stamps. Based on the available timing information, different algorithms can be developed for the clock synchronization. This paper introduces a novel PTP-based method in which clock...

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Bibliographische Detailangaben
Hauptverfasser: Chongning Na, Obradovic, D., Scheiterer, R.L.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Clock synchronization
Clocks
Communications technology
Ethernet networks
Frequency synchronization
Jitter
Kalman filter
Master-slave
Network topology
Precision Time Protocol
probabilistic model
Protocols
Time measurement
Timing
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Beschreibung
Zusammenfassung:Precision time protocol (PTP) synchronizes clocks of networked elements by exchanging messages containing precise time-stamps. Based on the available timing information, different algorithms can be developed for the clock synchronization. This paper introduces a novel PTP-based method in which clock synchronization is formulated as a probabilistic inference problem and is solved by Kalman filtering. The performance of this approach is verified by numerical results.
ISSN:1520-6149
2379-190X
DOI:10.1109/ICASSP.2009.4959953