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Phys. Rev. Lett. 94, 188702 (2005)

General Dynamics of Topology and Traffic on Weighted Technological Networks

Wen-Xu Wang,1 Bing-Hong Wang,1 Bo Hu,1 Gang Yan,2 and Qing Ou1

1Nonlinear Science Center and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China
2Department of Electronic Science and Technology, University of Science and Technology of China, Hefei 230026, People's Republic of China

(Received 11 November 2004; revised 31 January 2005; published 12 May 2005)

For most technical networks, the interplay of dynamics, traffic, and topology is assumed crucial to their evolution. In this Letter, we propose a traffic-driven evolution model of weighted technological networks. By introducing a general strength-coupling mechanism under which the traffic and topology mutually interact, the model gives power-law distributions of degree, weight, and strength, as confirmed in many real networks. Particularly, depending on a parameter W that controls the total weight growth of the system, the nontrivial clustering coefficient C, degree assortativity coefficient r, and degree-strength correlation are all consistent with empirical evidence. ?2005 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v94/e188702
doi:10.1103/PhysRevLett.94.188702
PACS: 89.75.Hc, 05.65.+b, 87.23.Ge, 89.40.Bb


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