Comments on "IEEE 1588 Clock Synchronization using Dual Slave Clocks in a Slave"
Hardware Architecture
2016-02-02 v3 Networking and Internet Architecture
Abstract
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.
Cite
@article{arxiv.1404.1311,
title = {Comments on "IEEE 1588 Clock Synchronization using Dual Slave Clocks in a Slave"},
author = {Kyeong Soo Kim},
journal= {arXiv preprint arXiv:1404.1311},
year = {2016}
}
Comments
2 pages, 1 figure