QoT-Aware Optical Amplifier Placement in Filterless Metro Networks
| Autor: | Andrea Castoldi, Francesco Musumeci, Massimo Tornatore, R. Pastorelli, Omran Ayoub, Oleg Karandin, Memedhe Ibrahimi |
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| Rok vydání: | 2021 |
| Předmět: |
Optical amplifier
Amplifier 020206 networking & telecommunications 02 engineering and technology Network topology Computer Science Applications Power (physics) Cost savings Signal-to-noise ratio Modeling and Simulation Genetic algorithm 0202 electrical engineering electronic engineering information engineering Electronic engineering Electrical and Electronic Engineering Optical filter |
| Zdroj: | IEEE Communications Letters. 25:931-935 |
| ISSN: | 2373-7891 1089-7798 |
| DOI: | 10.1109/lcomm.2020.3034736 |
| Popis: | 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 to further reduce equipment cost in FONs by minimizing amplifiers’ cost. We propose a Genetic Algorithm (GA) for placing boosters, inline amplifiers and pre-amplifiers in FONs with the objective of minimizing amplifiers cost. We provide two versions of the GA and compare their performance against a baseline amplifier placement in terms of amplifiers cost and quality-of-transmission (QoT), i.e., lightpaths OSNR and received power. Moreover, we provide a comparison between filterless and wavelength-switched architectures. Simulative results achieved over realistic network topologies show significant amplifier cost savings, up to 60% compared to baseline approaches. |
| Databáze: | OpenAIRE |
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