Comprehensive model for technoeconomic studies of next-generation central offices for metro networks
José Alberto Hernández,Marco Quagliotti,Laura Serra,Lourdes Luque,Rafael Lopez Da Silva,Albert Rafel,Oscar Gonzalez de Dios,Victor Lopez,Antonio Eira,Ramon Casellas,Andrew Lord,Joao Pedro,David Larrabeiti +12 more
TLDR
A novel and simplified cost model for designing and evaluating a Central Office Rearchitected as a Datacenter (CORD) with a special focus not only on relative costs but also on power consumption figures is introduced.Abstract:
This paper introduces a novel and simplified cost model for designing and evaluating a Central Office Rearchitected as a Datacenter (CORD). The model includes equipment and elements for the realization of optical, packet switching, and data center parts with a special focus not only on relative costs but also on power consumption figures. The cost model is then applied to the design and comparison of a metropolitan area network (MAN) including both aggregation and metrocore nodes following several MAN node architectures based on CORD-like leaf-and-spine fabric. In particular, equipment disaggregation at the Central Offices, both on the packet-switching and optical components, can provide important cost savings to telco operators. On the other hand, incorporating computing/storage capabilities in the MAN for the realization of multiaccess edge computing (MEC) has a significant impact on the total network cost but especially on power consumption.read more
Citations
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Routers vs Switches, How Much More Power Do They Really Consume? A Datasheet Analysis
Hakim Mellah,Brunilde Sansò +1 more
TL;DR: In this article, the authors present an analysis of a compiled database of power consumption and networking functionalities found in datasheets of routers and switches of some major manufacturers, and find very striking differences in consumption between switches and routers of the same nominal capacity.
Proceedings ArticleDOI
Point-to-Multipoint Coherent Optics for Re-thinking the Optical Transport: Case Study in 5G Optical Metro Networks
Nina Skorin-Kapov,Francisco Javier Moreno Muro,Maria-Victoria Bueno Delgado,Pablo Pavón Mariño +3 more
TL;DR: In this paper, a case study on a realistic 5G metro reference network, mixing a mesh metro core and edge rings, comparing P2MP and P2P transponders with varying relative costs was performed.
Journal ArticleDOI
Optimization of survivable filterless optical networks exploiting digital subcarrier multiplexing
M. M. Hosseini,Joao Pedro,Antonio Napoli,Nelson Costa,Jaroslaw E. Prilepsky,Sergei K. Turitsyn +5 more
TL;DR: In this article , an integer linear programming (ILP) model is proposed to optimize the design of resilient metro-aggregation networks using DSCM-based coherent transceivers.
Proceedings ArticleDOI
Enabling Router Bypass and Saving Cost using Point-to-Multipoint Transceivers for Traffic Aggregation
Antonio Napoli,Zdravko Stevkovski,José Jiménez,J. E. E. Zuleta,Johan Bäck,Joao Pedro,Julia Rodriguez,Rafael J. Diaz,Jose Carrallo,Atul Mathur,Juan Pedro Fernandez-Palacios Gimenez,Fady Masoud,Dave Welch +12 more
TL;DR: This work proposes combining point-to-multipoint coherent transceivers with a hybrid ROADM/filterless line system to enable a flatter IP-architecture for cost-effectively scaling metro-core/access networks.
Journal ArticleDOI
Cost-effective strategies to scale the capacity of regional optical transport networks
TL;DR: In this article , the authors compare different strategies to increase the capacity of regional transport networks, which not only exploit the usage of pluggable or embedded interfaces but also enhanced line system solutions, comprising the SuperC-band and hybrid Raman/erbium-doped fiber amplification.
References
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