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Distributed relative clock synchronization for wireless sensor networks
KTH, School of Electrical Engineering (EES), Communication Theory.
2011 (English)In: IFAC Proc. Vol. (IFAC-PapersOnline), 2011, no PART 1, 11265-11270 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper considers an important problem in sensor networks, i.e. clock synchronization in wireless sensor networks with a focus on those scenarios where the inter-node time-of-arrival measurements are noisy. Initially, a simple convex, constraint based, optimization protocol for the problem of relative clock synchronization in wireless (sensor) networks is presented. Later, we provide a distributed discrete-time solution to the same problem and show exponential convergence. Then we provide a similar algorithm for achieving the same solution in continuous-time. Both the discrete-time algorithm and the continuous-time algorithm are distributed in that each node in the network requires very little information from its neighbours in the network. In the end, we provide a modification of the continuous time algorithm that achieves a finite-time convergence to the desired solution under some additional requirements.

Place, publisher, year, edition, pages
2011. no PART 1, 11265-11270 p.
Series
IFAC Proceedings Volumes (IFAC-PapersOnline), ISSN 1474-6670 ; 18
Keyword [en]
Clock Synchronization, Constraint-based, Continuous time, Exponential convergence, Finite-time convergence, Time-of-arrival measurements, Algorithms, Continuous time systems, Mechanical clocks, Sensor nodes
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-150205DOI: 10.3182/20110828-6-IT-1002.03685Scopus ID: 2-s2.0-84866757850ISBN: 9783902661937 (print)OAI: oai:DiVA.org:kth-150205DiVA: diva2:743012
Conference
18th IFAC World Congress, 28 August 2011 through 2 September 2011, Milano, Italy
Note

QC 20140903

Available from: 2014-09-03 Created: 2014-09-01 Last updated: 2014-10-03Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf