A Fault Tolerant Time Synchronization Protocol for Underwater Acoustic Networks

Xuandi Sun, Xiaohong Shen, Weigang Bai, Ling Wang

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

2 Scopus citations

Abstract

Time synchronization is a supporting technology and necessary precondition for underwater acoustic (UWA) networks. Sensation and actuation in UWA networks need coordination across nodes. Under normal circumstances, the deployment of UWA networks is large, and the energy resources are limited. The existing protocols can't achieve an accuracy high enough and consume overmuch energy, so they could not well adapt to UWA networks yet. Although many protocols are dedicated to improving accuracy, they often work on the perspective of ameliorating the exchanged mechanism of information and ignore the propagation delay with the greatest impact on accuracy that affected by channel quality. In this paper, we propose a fault tolerant time synchronization protocol. It dedicated to enhancing accuracy by improving the processing method of exchanged synchronization messages and enables the synchronization process adapt to unstable channel quality. The simulation results show that the protocol achieves a high accuracy with low energy cost, and as channel quality deteriorates, compared with existing protocols, its accuracy declines flatter and fluctuates in a smaller range.

Original languageEnglish
Title of host publicationOCEANS 2018 MTS/IEEE Charleston, OCEAN 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538648148
DOIs
StatePublished - 7 Jan 2019
EventOCEANS 2018 MTS/IEEE Charleston, OCEANS 2018 - Charleston, United States
Duration: 22 Oct 201825 Oct 2018

Publication series

NameOCEANS 2018 MTS/IEEE Charleston, OCEAN 2018

Conference

ConferenceOCEANS 2018 MTS/IEEE Charleston, OCEANS 2018
Country/TerritoryUnited States
CityCharleston
Period22/10/1825/10/18

Keywords

  • Fault tolerant
  • Information processing method
  • Underwater acoustic (UWA) networks
  • Unstable channel quality

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