ICOIN 2003: Information Networking pp 108-117 | Cite as
Performance Analysis of Degree Four Topologies for the Optical Core of IP-over-WDM Networks
Abstract
In this paper, we present a performance analysis of degree four topologies for the optical core of IP-over-WDM networks. For comparison purposes, degree three chordal ring topologies are also considered and the performance analysis is focused on chord lengths that lead to smallest diameters (best performance). It is shown that the increase of the nodal degree from 3 (degree three topology with smallest diameter) to 4 (degree four topology with smallest diameter) improves the network performance if a larger number of wavelengths per link is available. It is also shown that the performance of networks with degree four topologies with diameters slightly higher than the smallest diameter is very close to the performance of networks with smallest diameter. Our results show that there are several degree four topologies, with a performance very close to the optimum, that may be implemented in the optical core of IP-over-WDM networks. These results clearly increase the implementation flexibility of degree four topologies in those environments.
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