Enviaments recents

  • Quantifying dynamic traffic in elastic optical networks 

    Comellas Colomé, Jaume; Vicario, L.; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    This work is focused on the characterization of the traffic allocated in Elastic Optical backbone networks when different dynamic traffic profiles are generated. Extensive simulations are done to statistically model the ...
  • Using dual-path allocation for partial traffic protection in elastic optical networks 

    Junyent Giralt, Gabriel; Comellas Colomé, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    Multi-path allocation has been proposed as a simple way to achieve traffic protection in different networking domains. In this work dual-path allocation is proposed for Elastic Optical Networks (EON) assuming dynamic offered ...
  • Cost-effective ROADM architecture for C/DWDM metro-access networks convergence 

    Sarmiento Hernández, Samael; Spadaro, Salvatore; Lázaro Villa, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    The Internet data traffic constant growth caused by the popularization of cloud services, mobile and social networks is requiring changes at the underlying networks in order to enable scalability whereas supporting a highly ...
  • Dynamic virtual network connectivity for C-RAN backhauling 

    Asensio Garcia, Adrian; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    Aiming at satisfying in a cost-effective manner the forecast traffic growth that future mobile networks will need to support, traditional distributed Radio Access Networks (RANs) are evolving towards centralized ...
  • Eliminación de la fluorescencia en espectros ROMAN utilizando técnicas FFT 

    Soneira Ferrando, M. José; Yúfera Gomez, José Manuel; Ruiz Moreno, Sergio (1996)
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  • Aplicación de técnicas laser a la restauración controlada de obras de arte 

    Yúfera Gomez, José Manuel; Ruiz Moreno, Sergio; Guitart Felip, Jorge (1994)
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  • Orchestrated SDN-based VDC provisioning over multi-technology optical data centre networks 

    Spadaro, Salvatore; Pagès Cruz, Albert; Agraz Bujan, Fernando; Montero, Rafael; Perelló Muntan, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    In this paper, we describe some scenarios and technologies that have been proposed to cope with the requirements of current and next generation data centre infrastructure. In particular, we discuss the extensions that have ...
  • Dynamic topology discovery in SDN-enabled transparent optical networks 

    Montero, Rafael; Agraz Bujan, Fernando; Pagès Cruz, Albert; Perelló Muntan, Jordi; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    Optical technologies play nowadays a crucial role in different network scenarios (e.g., data centres, metro and access networks), mainly due to their support for higher bandwidth and scalability in comparison to electronic-based ...
  • Signal overlap for efficient 1+1 protection in elastic optical networks (EONs) 

    Cugini, Filippo; Sambo, Nicola; Foggi, Tomasso; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo; Castoldi, Piero (Optical Society of American (OSA), 2017)
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    An innovative transmission technique enabling signal overlap is introduced for spectrally-efficient 1+1 protection. Simulation results show that the proposed technique successfully reduces the overall amount of occupied ...
  • Experimental assessment of degradation - triggered reconfiguration in optically interconnected cloud - RAN 

    Gifre, Lluis; Ruiz Ramírez, Marc; Castro Casales, Alberto; Proietti, Roberto; Yoo, Sung-Joo Ben; Velasco Esteban, Luis Domingo (Optical Society of American (OSA), 2017)
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    C-RAN control architecture is proposed and experimentally assessed. A local controller in each location receives latency, jitter, and BER monitoring data from local BBUs and detects a CPRI degradation, which triggers a ...
  • Demonstration of the benefits of SDN technology for all-optical data centre virtualisation 

    Jackson, Chris; Nejabati, Reza; Agraz Bujan, Fernando; Pagès Cruz, Albert; Galili, Michael; Spadaro, Salvatore; Simeonidou, Dimitra (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    An integrated software stack made up of extended OpenStack, OpenDaylight and custom OpenFlow agents enabling Virtual Data Centre deployment on an all-optical architecture employing hollow-core fibre, TDM fast switches and ...
  • Investigación y desarrollo de la espectroscopía Raman con tecnología de fibra óptica: aplicación a la identificación de pigmentos 

    Sierra, J; Ruiz Moreno, Sergio; Yúfera Gomez, José Manuel; Soneira Ferrando, M. José (1998)
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