Energy-efficient resilient optical networks: Challenges and trade-offs


Energy potency and resilience are 2 well established analysis topics in optical transport networks. However, their overall objectives (i.e., power minimization and resource utilization/ availability maximization) conflict. In reality, provisioning schemes optimized for best resilience performance are in most cases not energy-efficient in their operations, and vice versa. However, very few works within the literature consider the attention-grabbing problems which will arise when energy efficiency and resilience are combined in the same networking solution. The target of this article is to spot a number of analysis challenges and trade-offs for the look of energy-efficient and resilient optical transport networks from the perspective of long-term traffic forecasts, short-term traffic dynamics, and repair level agreement necessities. We have a tendency to support the challenges with justifying numbers based mostly on lessons learned from our previous work. The article also discusses appropriate metrics for energy potency and resilience analysis, in addition to a variety of steps that need to be taken at the standardization level to incorporate energy potency into already existing and well established protocols.

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