Traffic-driven evolution of weighted scale-free networks

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  • 4 October 2004
Abstract
We introduce the notion of traffic-driven evolution for a class of weighted networks, in which the weight of a link is characterized by the amount of traffic flowing through it. By noting that the traffic over the network is not determined locally but globally, this approach can explain the generic nonlinear scaling between the strength and the degree of a node. We demonstrate by a simple model that the strength-driven evolution scheme recently introduced can be generalized to a nonlinear preferential attachment rule, generating the power-law behaviors in degree and in strength simultaneously.

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