Enhancing White Rabbit Synchronization Stability and Scalability Using P2P Transparent and Hybrid Clocks
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Gutiérrez Rivas, José Luis; Torres González, Felipe; Ros Vidal, Eduardo; Díaz Alonso, Antonio JavierEditorial
IEEE
Materia
Accelerators Fifth generation (5G) Precision time protocol (PTP) Scalability Stability Synchronous ethernet (SyncE) Telecom White rabbit (WR)
Date
2021-01-25Referencia bibliográfica
J. L. Gutiérrez-Rivas... [et al.]. "Enhancing White Rabbit Synchronization Stability and Scalability Using P2P Transparent and Hybrid Clocks," in IEEE Transactions on Industrial Informatics, vol. 17, no. 11, pp. 7316-7324, Nov. 2021, doi: [10.1109/TII.2021.3054365]
Sponsorship
EMPIR programme; European Union's Horizon 2020 Research and Innovation Programme (WRITE) 17IND14Abstract
Time synchronization faces an increasing performance
demand nowadays. This is particularly common
in different segments, such as new scientific infrastructures,
power grid, telecommunications or fifth-generation
(5G) wireless networks. All of them share the need for a time
synchronization technology offering a very low synchronization
error along large networks. The new version of the
IEEE-1588-2019 protocol offers a considerable performance
improvement thanks to the high accuracy profile based on
white rabbit (WR). The original WR implementation guarantees
a synchronization accuracy below 1 ns for a small
number of cascaded nodes. This contribution evaluates the
performance degradation when a considerable number of
devices are deployed in cascaded configurations. In order
to improve the performance, different delay measurement
implementations have been evaluated in a series of experiments.
The results prove the considerable benefits of our
implementation against the current WR implementation.