Improving syntonization of synchronous ethernet nodes using multiple paths

Author

Rinaldi, Stefano ; Ferrari, P. ; Flammini, A. ; Fontanelli, Daniele ; Macii, D.

Author_Institution

Dept. of Inf. Eng., Univ. of Brescia, Brescia, Italy

fYear

2014

fDate

22-26 Sept. 2014

Firstpage

1

Lastpage

6

Abstract

The joint use of clock synchronization and syntonization can provide extremely high accuracy in industrial and telecom applications. However, in typical implementations of Synchronous Ethernet , only one frequency source at a time is selected for node syntonization (even in the presence of redundant networks with multiple paths), thus losing useful information. In this paper, an algorithm able to synthesize a frequency reference from the fusion of multiple signals over different network paths is presented and validated through simulations. The results confirm that the proposed algorithm is able to improve both frequency stability and robustness of the generated reference signal.

Keywords

local area networks; synchronisation; clock synchronization; frequency reference; frequency source; multiple path; multiple signal fusion; redundant networks; reference signal; synchronous Ethernet nodes; syntonization improvement; Accuracy; Clocks; Phase locked loops; Protocols; Synchronization; Time-frequency analysis; Transceivers; Phase-Locked Loop; Precision Time Protocol; Time Synchronization Syntonization; estimation; optimal control;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Clock Synchronization for Measurement, Control, and Communication (ISPCS), 2014 IEEE International Symposium on

Conference_Location

Austin, TX

Print_ISBN

978-1-4799-2698-5

Type

conf

DOI

10.1109/ISPCS.2014.6948521

Filename

6948521