QoT-Aware Optical Amplifier Placement in Filterless Metro Networks

Filterless Optical Networks (FONs) represent a novel cost-effective solution for metro optical networks, that allows to achieve equipment-cost savings by removing expensive optical-switching components from network nodes. In this study, we investigate how further reduce equipment cost in FONs minimizing amplifiers’ cost. We propose Genetic Algorithm (GA) placing boosters, inline amplifiers and pre-amplifiers with the objective of provide two versions GA compare their performance against baseline amplifier placement terms quality-of-transmission (QoT), i.e., lightpaths OSNR received power. Moreover, comparison between filterless wavelength-switched architectures. Simulative results achieved over realistic topologies show significant savings, up 60% compared approaches.