Differentiated Restoration based Multipath Re-provisioning for Disaster Recovery in EONs
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IEEE International Conference on Communications (ICC 2018), IEEE, (May 2018)

In this paper, we propose a new restoration algorithm for disaster recovery in Elastic Optical Networks (EONs). The algorithm considers the different connection requirements (i.e., restoration delay and the bandwidth degradation) while restoring them over multiple routes. Furthermore, the algorithm is able to adapt the connection recover process to the post-disaster network conditions and, consequently, to increase the number of restored connections. Results indicate that the proposed strategy is able to improve connections restorability and it leads to a lower bandwidth blocking probability when compared to benchmark restoration approaches based on bandwidth degradation and multipath recovery.
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