Improving consensual performance of multi-agent systems in weighted scale-free networks
Qi Wei(祁伟)a)†, Xu Xin-Jian(许新建)b), and Wang Ying-Hai(汪映海)a)†
a Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China; b Department of Mathematics, Shanghai University, Shanghai 200444, China
Abstract This paper studies consensus problems in weighted scale-free networks of asymmetrically coupled dynamical units, where the asymmetry in a given link is determined by the relative degree of the involved nodes. It shows that the asymmetry of interactions has a great effect on the consensus. Especially, when the interactions are dominant from higher- to lower-degree nodes, both the convergence speed and the robustness to communication delay are enhanced.
Received: 23 March 2009
Revised: 06 July 2009
Accepted manuscript online:
PACS:
84.40.Ua
(Telecommunications: signal transmission and processing; communication satellites)
Fund: Project supported by the National
Natural Science Foundation of China (Grant Nos 10775060 and
10805033), the Doctoral Education Foundation of National Education
Committee, and the Natural Science
Foundation of Gansu Province.
Cite this article:
Qi Wei(祁伟), Xu Xin-Jian(许新建), and Wang Ying-Hai(汪映海) Improving consensual performance of multi-agent systems in weighted scale-free networks 2009 Chin. Phys. B 18 4217
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