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

The computer network, as a complex nonlinear system, exhibits plenty of nonlinear complexities phenomena. More and more researchers have been attracted to these exciting dynamic behaviors. In general, computer simulation studies are widely used in the researches on network dynamics. Unfortunately, too simple and regular topologies are adopted in these network models. It inevitably results in the fact that some important complexities behaviors in a real computer network may not emerge in most of computer experimental studies. In this paper, the phase transition phenomena between the packet creation rate and the lifetime of packet, on basis of more realistic computer network models composed of the Transit–Stub topology and the proposed mechanism of packet traffic, are explored. To illustrate the fluctuation of packets more clearly, a power spectrum is made and the 1/f type power law is found. Finally, simulation results and some research emphases in the future are discussed.