Comments on 'IEEE 1588 clock synchronization using dual slave clocks in a slave'

Kyeong Soo Kim*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


In the above letter, Chin and Chen proposed an IEEE 1588 clock synchronization method based on dual slave clocks, where they claim that multiple unknown parameters - i.e., clock offset, clock skew, and master-to-slave delay - can be estimated with only one-way time transfers using more equations than usual. This comment investigates Chin and Chen's dual clock scheme with detailed models for a master and dual slave clocks and shows that the formulation of multi-parameter estimation is invalid, which affirms that it is impossible to distinguish the effect of delay from that of clock offset at a slave even with dual slave clocks.

Original languageEnglish
Article number6799190
Pages (from-to)981-982
Number of pages2
JournalIEEE Communications Letters
Issue number6
Publication statusPublished - Jun 2014
Externally publishedYes


  • Clock synchronization
  • clock offset
  • clock skew
  • path delay


Dive into the research topics of 'Comments on 'IEEE 1588 clock synchronization using dual slave clocks in a slave''. Together they form a unique fingerprint.

Cite this