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PATHS IN THE SIMPLE RANDOM GRAPH AND THE WAXMAN GRAPH
Published online by Cambridge University Press: 11 January 2002
Abstract
The Waxman graphs are frequently chosen in simulations as topologies resembling communications networks. For the Waxman graphs, we present analytic, exact expressions for the link density (average number of links) and the average number of paths between two nodes. These results show the similarity of Waxman graphs to the simpler class G>p(N). The first result enables one to compare simulations performed on the Waxman graph with those on other graphs with same link density. The average number of paths in Waxman graphs can be useful to dimension (or estimate) routing paths in networks. Although higher-order moments of the number of paths in Gp(N) are difficult to compute analytically, the probability distribution of the hopcount of a path between two arbitrary nodes seems well approximated by a Poisson law.
- Type
- Research Article
- Information
- Probability in the Engineering and Informational Sciences , Volume 15 , Issue 4 , October 2001 , pp. 535 - 555
- Copyright
- © 2001 Cambridge University Press