Enviaments recents

  • Digital pre-emphasis for 10Gb/s with low-cost directly phase-modulated lasers for PONs 

    Tabares Giraldo, Jeison; Napoli, Antonio; Polo Querol, Víctor; Calabro, S.; Sommerkorn-Krombholz, B.; Spinnler, B.; Prat Gomà, Josep Joan (Optical Society of American (OSA), 2018)
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    Accés restringit per política de l'editorial
    We apply digital pre-emphasis to compensate for the frequency response non-idealities of low-cost optical transmitters. It enables transmission beyond 10Gb/s with 2/4/8-DPSK using directly modulated lasers and coherent ...
  • Allocating multi-rate requests to single-rate lightpaths in Flexgrid optical networks 

    Comellas Colomé, Jaume; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    Accés restringit per política de l'editorial
    Some ideas about the effect of appropriately selecting the size of the connections conveyed by multi-rate flexgrid optical networks are discussed. The main focus is on illustrating the relation between spectrum consumption ...
  • Fully disaggregated ROADM white box with NETCONF/YANG control, telemetry, and machine learning-based monitoring 

    Sgambelluri, Andrea; Izquierdo Zaragoza, José Luis; Giorgetti, Alessio; Gifre, Lluís; Velasco Esteban, Luis Domingo; Paolucci, Francesco; Sambo, Nicola; Fresi, Francesco; Castoldi, Piero; Morro, Roberto; Riccardi, Emilio; D'Errico, Alessio; Cugini, Filippo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    Accés restringit per política de l'editorial
    A first demonstration of ROADM White Box augmented with machine learning capabilities is demonstrated. The white box includes various level of disaggregation, NETCONF/YANG control, telemetry and spectrum-based advanced ...
  • Real-time 10Gbps polarization independent quasicoherent receiver for NG-PON2 access networks 

    Altabas, Jose Antonio; Valdecasa, G.S.; Didriken, M.; Lázaro Villa, José Antonio; Garces, Ignacio; Monroy, I.T; Jensen, J.B. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    Accés restringit per política de l'editorial
    A real-time 10Gbps polarization independent quasicoherent receiver for NG-PON2 access networks is proposed and experimentally validated. The sensitivity of this receiver is-33dBm and making feasible a 35dB power budget ...
  • Experimental demonstration of active and passive optical networks telemetry 

    Gifré Renom, Lluís; Izquierdo Zaragoza, José Luis; Behnam Shariati, Mohammad; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    Accés restringit per política de l'editorial
    A distributed architecture enabling active and passive optical network telemetry is presented; a YANG data model is used for remotely configuring monitoring devices for telemetry purposes. Experimental demonstration is ...
  • Learning from the optical spectrum: soft-failure identification and localization 

    Velasco Esteban, Luis Domingo; Behnam Shariati, Mohammad; Vela, Alba P.; Comellas Colomé, Jaume; Ruiz Calvo, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    The availability of coarse-resolution cost-effective Optical Spectrum Analyzers (OSA) allows its widespread deployment in operators' networks. In this paper, several machine learning approaches for failure identification ...
  • Applying data visualization for failure localization 

    Vela, Alba P.; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    Accés restringit per política de l'editorial
    Data visualization is applied to BER measures in a bigdata repository. Bubble charts are produced to identify lightpaths with increasing BER and spectrum color maps are then used to identify the most likely degraded link
  • Optimized differential detection-based optical carrier recovery for intradyne PSK receivers in udWDM-PON 

    Ghasemi, Saeed; Tabares Giraldo, Jeison; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    Accés restringit per política de l'editorial
    We present an optical carrier recovery based on differential detection that reduces required DSP hardware resources. Results show -55dBm sensitivity for BER=10-3 and high tolerance against fast LO frequency dithering, with ...
  • Free space intra-datacenter interconnection utilizing 2D optical beam steering 

    Behnam Shariati, Mohammad; Bogris, A.; Dijk, P.V.; Roeloffzen, C.; Tomkos, Ioannis; Syvridis, D (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    We evaluate the performance and benefits of novel integrated Free-Space-Optics (FSO) transceivers, supporting optical beam steering at low power consumption with ns steering speed. A proper intra-datacenter network ...
  • On the benefits of elastic spectrum management in multi-hour filterless metro networks 

    Pedreno Manresa, J.J.; Izquierdo Zaragoza, José Luis; Cugini, Filippo; Pavón Mariño, Pablo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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    The dawn of 5G is pushing operators to deploy high-capacity, agile networks capable of adapting to time-varying traffic patterns, especially into metro sections. ROADMs are key enablers for agility in the optical layer, ...
  • ALLIANCE Project: Architecting a knowledge-defined 5G-enabled network infrastructure 

    Careglio, Davide; Spadaro, Salvatore; Cabellos Aparicio, Alberto; Lázaro Villa, José Antonio; Perelló Muntan, Jordi; Barlet Ros, Pere; Gene Bernaus, Joan M.; Paillissé Vilanova, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Text en actes de congrés
    Accés obert
    Leaving the current 4th generation of mobile communications behind, 5G will represent a disruptive paradigm shift integrating access networks, ultra-high capacity access/metro/core optical networks and intra-datacentre ...
  • SliceNet: enabling 5G use cases for vertical businesses 

    Aleixo, Ana Cristina; Alcaraz Calero, Jose; Barros Weiss, Maria; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The use cases motivating 5G are so diverse and challenging that 5G networks must be customizable for a very broad range of individual scenarios. The Project SliceNet, part of the European 5G infrastructure PPP, is set to ...

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