Minimizing the Risk From Disaster Failures in Optical Backbone Networks

作者：Dikbiyik Ferhat^*; Tornatore Massimo; Mukherjee Biswanath

来源：Journal of Lightwave Technology, 2014, 32(18): 3175-3183.

DOI：10.1109/JLT.2014.2334713

• Correlated cascading failures (CCFs)
• disaster risk
• earthquake
• optical network
• reprovisioning
• risk-aware provisioning
• weapons of mass destruction (WMD) attack

Failures caused by disasters (e.g., weapons of mass destruction (WMD) attacks, earthquakes, hurricanes, etc.) can create huge amount of loss and disruptions in optical backbone networks. Due to major network disruptions in recent disasters, network operators need solutions to prevent connections from disasters, and recover them after disasters. 1) Prevention requires proactive approaches where the damage from a possible disaster should be estimated. Specifically, we propose disaster-risk-aware provisioning, which minimizes loss to a network operator in case of a disaster. 2) Recovery methods should consider that, after the initial failure, more connections might be disconnected by correlated cascading failures. Thus, we investigate a reprovisioning scheme to recover disrupted connections. Numerical examples conducted for different disaster types (WMD attack, earthquake, and tornado) show that our schemes significantly reduce the risk and loss in case of a disaster.

• 出版日期2014-9-15