Survivability against amplifier failures in multi-band elastic optical networks

Abstract

We propose and evaluate different techniques to provide protection against, at least, amplifier failures in multi-band (C+L) elastic optical networks using two different amplifier architectures. The strategies are compared in terms of blocking ratio and protection capabilities. We demonstrate that the use of the proposed hybrid protection technique leads to a significant decrease on blocking ratio leveraging on one of the amplifier architectures and exploiting that different connection requests may have different resiliency requirements.