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Safe Clock Synchronization Mechanism for Multi-Cluster TTEthernet Networks

  • Xueqian Tang
  • , Qiao Li
  • , Guangshan Lu
  • , Huagang Xiong
  • Beihang University

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

Abstract

The rapid progress in the area of The Internet-of-Things (IoT) promises a new generation of systems and system-of-systems(SoS). Multi-cluster systems with real-Time communication networks are gaining increasing importance to meet the communication needs of SoS. To guarantee the required Quality of Service (QoS), SAE AS6802 specified a distributed clock synchronization method for the intra-cluster domain of Time-Triggered Ethernet (TTEthernet) and master-slave paradigm for the inter-cluster domain of multi-cluster TTEthernet. But the detailed clock synchronization operations for the multi-cluster TTEthernet are not presented. This paper proposes a safe clock synchronization mechanism for multi-cluster TTEthernet Networks. The proposed inter-cluster synchronization mechanism is executed to establish a global time base and not disturb clock synchronization mechanism of the intra-cluster domain. Besides, in consideration of the uncertainties derived from the accumulated jitter of time-Triggered traffic, a fixed offset is introduced to guarantee a safe inter-cluster time-Triggered communication. Moreover, the worst-case precision of the clock synchronization for multi-cluster TTEthernet networks is analyzed and validated by Symbolic Analysis Laboratory(SAL).

Original languageEnglish
Title of host publication2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538661192
DOIs
StatePublished - 30 Nov 2018
Event10th International Conference on Wireless Communications and Signal Processing, WCSP 2018 - Hangzhou, China
Duration: 18 Oct 201820 Oct 2018

Publication series

Name2018 10th International Conference on Wireless Communications and Signal Processing, WCSP 2018

Conference

Conference10th International Conference on Wireless Communications and Signal Processing, WCSP 2018
Country/TerritoryChina
CityHangzhou
Period18/10/1820/10/18

Keywords

  • IoT
  • SoS
  • TTEthernet
  • clock synchronization
  • multi-cluster

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