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Albert Rafel
Researcher at BT Group
Publications - 20
Citations - 547
Albert Rafel is an academic researcher from BT Group. The author has contributed to research in topics: Passive optical network & Access network. The author has an hindex of 8, co-authored 18 publications receiving 489 citations. Previous affiliations of Albert Rafel include Ericsson.
Papers
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Journal ArticleDOI
Long-Reach Passive Optical Networks
R.P. Davey,Daniel B. Grossman,Michael Rasztovits-Wiech,David B. Payne,Derek Nesset,Anthony Kelly,Albert Rafel,Shamil Appathurai,Sheng-Hui Yang +8 more
TL;DR: In this paper, a tutorial reviewing research and development performed over the last few years to extend the reach of passive optical networks using technology such as optical amplifiers is presented, which is a good starting point for our work.
Proceedings ArticleDOI
Towards ultra-dense wavelength-to-the-user: The approach of the COCONUT project
J. Prat,M. Angelou,Christophe Kazmierski,Robert Pous,Marco Presi,Albert Rafel,Gemma Vall-Llosera,Ioannis Tomkos,Ernesto Ciaramella +8 more
TL;DR: The high-level COCONUT network should allow for seamless evolution from present PON architectures, but also support new emerging applications such as mobile back-haul and front-haul, and reach higher power budget and higher sensitivity, thanks to ultra-dense WDM.
Journal ArticleDOI
Technologies for Cost-Effective udWDM-PONs
Josep Prat,Ivan N. Cano,Marco Presi,Ioannis Tomkos,Dimitrios Klonidis,Gemma Vall-Llosera,Romain Brenot,Robert Pous,George Papastergiou,Albert Rafel,Ernesto Ciaramella +10 more
TL;DR: In this article, an ultradense WDM-PON with only 6.25 GHz channel spacing is implemented with conventional DFB lasers, for a splitter-based PON infrastructure with 256 ONUs.
Journal ArticleDOI
Techno-Economic Impact of Filterless Data Plane and Agile Control Plane in the 5G Optical Metro
Pablo Pavon-Marino,F. J. Moreno-Muro,Miquel Garrich,Marco Quagliotti,Emilio Riccardi,Albert Rafel,Andrew Lord +6 more
TL;DR: A strategic and distinctive effort is made to incorporate metro WDM topologies, traffic profiles and daily variation patterns, fault-tolerance requisites, and network operational choices, that faithfully reflect the expected 5G metro progression for a national carrier.
Journal ArticleDOI
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
TL;DR: 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.