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Self Organized Critical Traffic in Parallel Computer Networks

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  • Sergi Valverde
  • Ricard V. Solé

Abstract

In a recent paper, we analysed the dynamics of traffic flow in a simple, square lattice architecture. It was shown that a phase transition takes place between a free and a congested phase. The transition point was shown to exhibit optimal information transfer and wide fluctuations in time, with scale-free properties. In this paper we further extend our analysis by considering a generalization of the previous model in which the rate of packet emission is regulated by the local congestion perceived by each node. As a result of the feedback between traffic congestion and packet release, the system is poised at criticality. Many well-known statistical features displayed by Internet traffic are recovered from our model in a natural way.

Suggested Citation

  • Sergi Valverde & Ricard V. Solé, 2001. "Self Organized Critical Traffic in Parallel Computer Networks," Working Papers 01-11-071, Santa Fe Institute.
    • Handle: RePEc:wop:safiwp:01-11-071
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    Keywords

    Self-organized criticality; Internet; traffic; computer networks; scaling;
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