Analysis of power spectrum and 1/f type power law in a complex computer network model

The computer network, as a complex nonlinear system, exhibits plenty of non linear complexities phenomena. More and more researchers have been attracte d to these exciting dynamic behaviors, In general, computer simulation stud ies are widely used in the researches on network dynamics. Unfortunately, t oo simple and regular topologies are adopted in these network models. It in evitably results in the fact that some important complexities behaviors in a real computer network may not emerge in most of computer experimental stu dies. In this paper, the phase transition phenomena between the packer crea tion rate and the lifetime of packet, on basis of more realistic computer n etwork models composed of the Transit-Stub topology and the proposed mechan ism of packet traffic, are explored. To illustrate the fluctuation of packe ts more clearly, a power spectrum is made and the 1/f type power law is fou nd. Finally, simulation results and some research emphases in the future ar e discussed. (C) 2001 Elsevier Science B.V. All rights reserved.