Enviaments recents

  • Cost-effective spatial super-channel allocation in Flex-Grid/MCF optical core networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Gene Bernaus, Joan M.; Spadaro, Salvatore (2018-01-01)
    Article
    Accés restringit per política de l'editorial
    Space Division Multiplexing (SDM) is a key technology to cope with the bandwidth limitations of single mode fibers. Multi-Core Fibers (MCFs) are considered as a promising candidate technology to implement SDM, due to their ...
  • TelcoFog: A unified flexible fog and cloud computing architecture for 5G networks 

    Vilalta, Ricard; López Álvarez, Victor; Giorgetti, Alessio; Peng, Shuping; Orsini, Vittorio; Velasco Esteban, Luis Domingo; Serral Gracià, René; Morris, Donald; Fina, Silvia de; Cugini, Filippo; Castoldi, Piero; Mayoral, Arturo; Casellas Regi, Ramón; Martínez, Ricardo; Verikoukis, Christos; Ricart Muñoz, Raul (2017-08-01)
    Article
    Accés obert
    Telecom operators require cloud computing and storage infrastructures, integrated with their heterogeneous access and transport networks, in order to provide software defined networking (SDN), network functions virtualization ...
  • ABNO-driven content distribution in the telecom cloud 

    Gifre Renom, Lluís; Tornatore, Massimo; Contreras Murillo, Luis Miguel; Mukherjee, Biswanath; Velasco Esteban, Luis Domingo (2017-11-01)
    Article
    Accés obert
    As current traffic growth is expected to strain capacity of today¿s metro network, novel content distribution architectures where contents are placed closer to the users are being investigated. In that regard, telecom ...
  • On the benefits of resource disaggregation for virtual data centre provisioning in optical data centres 

    Pagès Cruz, Albert; Serrano, Ruben; Perelló Muntan, Jordi; Spadaro, Salvatore (2017-07-15)
    Article
    Accés restringit per política de l'editorial
    Virtual Data Centre (VDC) allocation requires the provisioning of both computing and network resources. Their joint provisioning allows for an optimal utilization of the physical Data Centre (DC) infrastructure resources. ...
  • BER degradation detection and failure identification in elastic optical networks 

    Vela, Alba P.; Ruiz Ramírez, Marc; Fresi, Francesco; Sambo, Nicola; Cugini, Filippo; Meloni, Gianluca; Poti, Luca; Velasco Esteban, Luis Domingo; Castoldi, Piero (2017-08-30)
    Article
    Accés obert
    IEEE Optical connections support virtual links in MPLS-over-optical multilayer networks and therefore, errors in the optical layer impact on the quality of the services deployed on such networks. Monitoring the performance ...
  • Motivations and outcomes: a study of an intensive international course 

    Myrup Pedersen, Jens; Gutiérrez López, José Manuel; Kirikova, Marite; Zabludowski, Lukasz; Comellas Colomé, Jaume (Tempus Publications, 2017-05-10)
    Article
    Accés restringit per política de l'editorial
    In this paper, we study what motivates students and university teachers to do intensive international courses, and how they evaluate the outcomes. The study is based on three years of an Erasmus funded Intensive Programme ...
  • Distributing data analytics for efficient multiple traffic anomalies detection 

    Pérez Vela, Alba; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (2017-03-22)
    Article
    Accés restringit per política de l'editorial
    Traffic anomalies can create network congestion, so its prompt and accurate detection would allow network operators to make decisions to guarantee the network performance avoiding services to experience any perturbation. ...
  • Optimized traffic profile for FlexGrid optical networks 

    Liu, Fengqing; Comellas Colomé, Jaume (2017-05-05)
    Article
    Accés obert
    This work is focused on studying the connections’ bandwidth distribution effects on the FlexGrid network performance. An accurate study of spectrum occupancy in heavy loaded FlexGrid optical networks is carried out. This ...
  • Solving large instances of the RSA problem in flexgrid elastic optical networks 

    Walkowiak, Krzysztof; Zotkiewicz, Mateusz; Klinkowski, Miroslaw; Pioro, Michal; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2016-05-01)
    Article
    Accés obert
    We present an optimization procedure that mixes advanced large-scale optimization methods and heuristics to solve large instances (with over 1.7 million integer variables) of the routing and spectrum allocation (RSA) ...
  • Automatic morphology-based cubic p-spline fitting methodology for smoothing and baseline-removal of Raman spectra 

    González-Vidal, Juan José; Pérez Pueyo, Rosanna; Soneira Ferrando, M. José (2017-01-01)
    Article
    Accés restringit per política de l'editorial
    Noise filtering is considered a crucial step for the proper interpretation of Raman spectra. In this work, we present a new denoising procedure which enhances the Raman information whilst reducing unwanted contributions ...

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