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Finding Failure-Disjoint Paths for Path Diversity Protection in Communication Networks

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3 Author(s)
Zotkiewicz, M. ; Inst. Telecom, Telecom SudParis, Paris, France ; Ben-Ameur, W. ; Pioro, M.

In the paper we consider a flow problem closely related to path diversity protection in communication networks. Given a weighted directed graph where some arcs are subject to failures while others are resilient, we aim at computing a shortest pair of failure-disjoint paths. If a resilient arc is used by both paths, its cost is counted only once. We present an original polynomial-time algorithm for solving the problem.

Published in:

Communications Letters, IEEE  (Volume:14 ,  Issue: 8 )