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Diverse routing in optical mesh networks

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1 Author(s)
Jian Qiang Hu ; Dept. of Manuf. Eng., Boston Univ., Brookline, MA, USA

We study the diverse routing problem in optical mesh networks. We use a general framework based on shared risk link groups to model the problem. We prove that the diverse routing problem is indeed NP-complete, a result that has been conjectured by several researchers previously. In fact, we show that even the fiber-span-disjoint paths problem, a special case of the diverse routing problem, is also NP-complete. We then develop an integer linear programming formulation and show through numerical results that it is a very viable method to solve the diverse routing problem for most optical networks found in many applications which typically have no more than a few hundred nodes and fiber spans.

Published in:

Communications, IEEE Transactions on  (Volume:51 ,  Issue: 3 )

Date of Publication:

March 2003

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