Synchronization in Directed Complex Networks Using Graph Comparison Tools

Hui Liu, Ming Cao, Chai Wah Wu, Jun-An Lu, Chi K. Tse

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

This paper proposes lower bounds for the coupling strengths of oscillators in directed networks to guarantee global synchronization. The novel idea of graph comparison from spectral graph theory is employed so that the combinatorial features of a given network can be fully utilized to simplify computations. For large networks that can be decomposed into a set of smaller strongly connected components, the comparison can be carried out at the local level as well. To validate theoretical analysis, examples are provided to demonstrate how to apply the proposed methodologies to typical directed complex networks.
Original languageEnglish
Article number7070888
Pages (from-to)1185-1194
JournalIEEE Transactions on Circuits and Systems I: Regular Papers
Volume62
Issue number4
Online published27 Mar 2015
DOIs
Publication statusPublished - Apr 2015
Externally publishedYes

Research Keywords

  • Coupling strength allocation
  • directed complex networks
  • spectral graph theory
  • synchronization

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