Distributed change detection in large scale sensor networks through the synchronization of pulse-coupled oscillators

Yao Win Hong, Anna Scaglione

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

19 Scopus citations

Abstract

This paper proposes the use of a distributed synchronization mechanism, which locks in phase the pulse-coupled oscillators, to rapidly alert the nodes of a sensor network of a change detected by a group of the sensors. By encoding into an abrupt variation of the phase their positive detection of a change, the nodes force all other nodes to reach a new synchronization equilibrium. Therefore, the information about the change is implicitly encoded in the phase transitions. While the local detection problem at each sensor can be is addressed using the standard change detection algorithms, the interesting aspect of this work is the unconventional way through which the nodes broadcast their information to each other and fuse their decisions. The main advantages of the proposed method is the scalability and low complexity of the fusion algorithm.

Original languageEnglish (US)
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume3
StatePublished - 2004
Externally publishedYes
EventProceedings - IEEE International Conference on Acoustics, Speech, and Signal Processing - Montreal, Que, Canada
Duration: May 17 2004May 21 2004

Other

OtherProceedings - IEEE International Conference on Acoustics, Speech, and Signal Processing
CountryCanada
CityMontreal, Que
Period5/17/045/21/04

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Acoustics and Ultrasonics

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    Hong, Y. W., & Scaglione, A. (2004). Distributed change detection in large scale sensor networks through the synchronization of pulse-coupled oscillators. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 3)