Title:
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Options for cost-effective capacity upgrades in backbone optical networks
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Author:
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Shariati, Behnam; Rivas Moscoso, José Manuel; Klonidis, Dimitrios; Tomkos, Ioannis; Ben Ezra, Shalva; Jiménez, Felipe; Marom, Dan M.; Sayyad Khodashenas, Pouria; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques |
Abstract:
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Upgrading the capacity of backbone optical networks while delivering contents to the end-users with a reduced cost per bit is a day-by-day challenge of network operators. In this paper, we first discuss several mid-term options for capacity upgrades including migration to multi-fibre and multi-band systems (utilizing amplification systems
with bandwidth extending over the C+L or the S+C+L bands). The multi-band approach is shown to be more costeffective than the multi-fibre approach under certain circumstances. We then focus on space-division multiplexing (SDM) based networks as the ultimate solution to address the capacity crunch. We compare the performance and infrastructure cost of possible SDM switching options for a solution based on bundles of single-mode fibres as a first pragmatic generation of SDM networks. We show that the use of spatial-group switching reduces the switching-related infrastructure cost of the SDM network and can also lead to extra cost savings due to sharing of elements in other parts of the network. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica -Optical communications -Cost effectiveness -Cost reduction -Costs -Fiber optic networks -Optical communication -Single mode fibres -Infrastructure costs -Multi band -Multiband systems -Network costs -Network operator -Raman systems -Space division multiplexing -Superchannel -Comunicacions òptiques |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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