Reactive clock synchronization for wireless sensor networks with asynchronous wakeup scheduling

Sang Hoon Lee, Yunmook Nah, Lynn Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Most of the existing clock synchronization algorithms for wireless sensor networks can be viewed as proactive clock synchronization since they require nodes to periodically synchronize their clock to a reference node regardless of whether they use time information or not. However, the proactive approach wastes unnecessary energy and bandwidth when nodes don't use time information for their operations. In this paper, we propose a new clock synchronization scheme called Reactive Clock Synchronization (RCS) that can be carried out on demand. The main idea is that a source node initiates a synchronization process in parallel with a data communication. To propagate clock information only when there is traffic, we embed the synchronization process in a data communication process. The results from detailed simulations confirm that RCS consumes only less than 1 percent of the energy consumption compared to two representative existing algorithms while it improves the clock accuracy by up to 75.8%.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Pages107-118
Number of pages12
Volume6399 LNCS
DOIs
Publication statusPublished - 2010 Nov 24
Event8th IFIP Workshop on Software Technologies for Embedded and Ubiquitous Systems, SEUS 2010 - Waidhofen/Ybbs, Austria
Duration: 2010 Oct 132010 Oct 15

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume6399 LNCS
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other8th IFIP Workshop on Software Technologies for Embedded and Ubiquitous Systems, SEUS 2010
CountryAustria
CityWaidhofen/Ybbs
Period10/10/1310/10/15

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Keywords

  • Clock synchronization
  • media access control
  • preamble sampling
  • wakeup scheduling
  • wireless sensor network

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Lee, S. H., Nah, Y., & Choi, L. (2010). Reactive clock synchronization for wireless sensor networks with asynchronous wakeup scheduling. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 6399 LNCS, pp. 107-118). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 6399 LNCS). https://doi.org/10.1007/978-3-642-16256-5_12