Competition and adaptation in an Internet evolution model.
We model the evolution of the Internet at the autonomous system level as a process of competition for users and adaptation of bandwidth capability. From a weighted network formalism, where both nodes and links are weighted, we find the exponent of the degree distribution as a simple function of the growth rates of the number of autonomous systems and connections in the Internet, both empirically measurable quantities. Our approach also accounts for a high level of clustering as well as degree-degree correlations, both with the same hierarchical structure present in the real Internet. Further, it also highlights the interplay between bandwidth, connectivity, and traffic of the network.
Serrano
M Angeles
MA
Departament de Física Fonamental, Universitat de Barcelona, Martí i Franqueè 1, 08028 Barcelona, Spain.
Boguñá
Marián
M
Díaz-Guilera
Albert
A
D003163:Competitive Behavior; D006801:Humans; D020407:Internet / Q000706:statistics & numerical data*; D015233:Models, Statistical; D016571:Neural Networks, Computer; D014584:User-Computer Interface