For several decades, optical networks, due to their high capacity and long-distance
transmission range, have been used as the major communication technology to serve …

Network survivability endeavors to ensure the uninterrupted provisioning of services by the
network operators in case of a disaster event. Studies and news reports show that network …

An inherent problem in Software-Defined Networking (SDN) is the Controller Placement
Problem, which addresses how many controllers to deploy in the network, and where to …

This paper focuses on how to increase the availability of a backbone network with minimal
cost. In particular, the new framework focuses on resilience against natural disasters and is …

The current best practice in survivable routing is to compute link or node disjoint paths in the
network topology graph. It can protect single-point failures; however, several failure events …

The current best practice in survivable routing is to compute link or node disjoint paths in the
network topology graph. It can protect single-point failures; however, several failure events …

Telecommunication networks are a critical infrastructure of our society. Wide area backbone
communication networks are based on optical networks, where each fiber has a very large …

Survivable routing is crucial in backbone networks to ensure connectivity, even during
failures. At network design, groups of network elements prone to potential failure events are …

In this paper, we present a framework for disaster resilience, called FRADIR-II, which
improves the performance of its previous counterpart. In the novel framework, two different …

Several recent studies shed light on the vulnerability of networks against regional failures,
which are failures of multiple nodes and links in a physical region due to a natural disaster …