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Logical Topology Design for WDM Networks Using Survivable Routing

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3 Author(s)
A. Jaekel ; University of Windsor, Windsor, Canada N9B 3P4. ; S. Bandyopadhyay ; Y. Aneja

Survivable routing of a logical topology ensures that the lightpaths are routed in such a way that a single link failure does not disconnect the network. However, even if the network remains connected after a failure, there is no guarantee that the resulting logical topology will be able to support the required traffic. In this paper, we introduce a new approach that integrates the logical topology design and survivable routing problems. When a topology is generated using our approach, it is guaranteed to have a survivable routing. We further ensure that the topology is able to handle the entire traffic demand, for any single link failure. We have formulated an ILP that optimally designs a survivable logical topology, and also proposed a fast heuristic which can be used for large networks.

Published in:

2006 IEEE International Conference on Communications  (Volume:6 )

Date of Conference:

June 2006