Technique for frequency transfer over packet networks

James Aweya, Nayef Al Sindi

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

1 Scopus citations

Abstract

This paper describes the design and performance analysis of a new approach for frequency synchronization over packet networks. The technique which includes a digital phase-locked loop (DPLL) is timestamp-based and involves a transmitter clock sending periodically an explicit time indication or timestamp to the receiver so that it can synchronize its local clock to that of the transmitter. The digital oscillator used in the PLL is a divide-by-N counter type oscillator (DNCO). We explain how the DPLL can be designed using standard control theory concepts and show how the DPLL performs in the presence of network perturbations like packet delay variations (PDV) which is the main source of clock errors in packet-based synchronization.

Original languageBritish English
Title of host publication2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012
Pages822-827
Number of pages6
DOIs
StatePublished - 2012
Event2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012 - Boise, ID, United States
Duration: 5 Aug 20128 Aug 2012

Publication series

NameMidwest Symposium on Circuits and Systems
ISSN (Print)1548-3746

Conference

Conference2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012
Country/TerritoryUnited States
CityBoise, ID
Period5/08/128/08/12

Keywords

  • Clock Synchronization
  • Digital Controlled Oscillator
  • Divide-by-N counter type oscillator
  • IEEE 1588
  • Packet delay variation
  • Phase-locked loop

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