Recent Submissions

  • Autonomic NFV network services on top of disaggregated optical metro networks 

    Esmenats, P. R.; Casellas Regi, Ramon; Gifré Renom, Lluís; Pérez Vela, Alba; Ruiz Ramírez, Marc; Martínez, Ricardo; Velasco Esteban, Luis Domingo
    Conference report
    Restricted access - publisher's policy
    Control and orchestration of metro network to support dynamic provisioning and reconfiguration of services based on Virtual Network Functions are demonstrated through a CDN example. Interaction among CASTOR MDA, OSM and ...
  • Autonomic transmission through pre-FEC BER degradation prediction based on SOP monitoring 

    Shariati, Mohammad Behnam; Boitier, F.; Ruiz Ramírez, Marc; Layec, Patricia; Velasco Esteban, Luis Domingo
    Conference report
    Restricted access - publisher's policy
    An Autonomic Transmission Agent based on machine-learning is proposed for excessive bit-error-rate prediction resulting from real-time analysis of state-of-polarization (SOP). The accuracy and speed of the agent enables ...
  • Inter-core crosstalk impact on migration planning from elastic optical networks to spectrally-spatially flexible optical networks 

    Lechowicz, Piotr; Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Spadaro, Salvatore; Walkowiak, Krzysztof (Optical Society of American (OSA), 2019)
    Conference report
    Restricted access - publisher's policy
    We study inter-core crosstalk (ICXT) impact on migration planning toward spectrally-spatially flexible optical networks considering 22-core multi-core fiber. Results reveal that 55-70% of links need to be upgraded when ...
  • Automated end to end Carrier Ethernet provisioning over a disaggregated WDM metro network with a hierarchical SDN control and monitoring platform 

    Morro, Roberto; Lucrezia, Francesco; Gomes, P.; Casellas Regi, Ramón; Giorgetti, Alessio; Velasco Esteban, Luis Domingo; Riccardi, Emilio; Chiadò Piat, Anna; Percelsi, Alessandro; Pedro, João; Gifré Renom, Lluís; Sgambelluri, Andrea; Risso, Fulvio; Marchetto, Guido
    Conference report
    Open Access
    This demo shows how a hierarchical control plane of ONOS SDN controllers orchestrates the dynamic provisioning of end-to-end Carrier Ethernet circuits on a composite network, programming the whole data path from the CPE ...
  • Dynamic service reallocation in NFV-based transport WDM optical networks 

    Pagès Cruz, Albert; Agraz Bujan, Fernando; Montero, Rafael; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Future network services are expected to deliver additional functionalities besides connectivity. The Network Function Virtualization (NFV) paradigm provides the foundation for such concept. We propose a reallocation-based ...
  • Experimental assessment of 5-10Gbps 5G multicarrier waveforms with intensity-modulation direct-detection for PONs 

    Sarmiento, Samael; Gran, Albert; Altabas, Jose; Scalabroni, Marco; Spadaro, Salvatore; Garces, Ignacio; Lázaro Villa, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    The sensitivity performance of an IMDDOFDM/FBMC/UFMC/GFDM system with a PIN based receiver is experimentally evaluated for downstream in broadband passive optical networks. Results show sensitivities better than -14.5(-8.0)dBm ...
  • SDN-controlled and orchestrated OPSquare DC architecture enabling network slice deployment with QoS guarantees 

    Montero, Rafael; Agraz Bujan, Fernando; Pagès Cruz, Albert; Calabretta, Nicola; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    We present a DC architecture that enables QoSdriven network slices reconfiguration. Per-slice monitoring information is collected; upon potential QoS degradation, reconfiguration of the slice network connectivity is ...
  • Enabling data analytics and machine learning for 5G services within disaggregated multi-layer transport networks 

    Casellas Regi, Ramón; Martínez Rivera, Ricardo Victor; Velasco Esteban, Luis Domingo; Vilalta, Ricard; Pavón Mariño, Pablo; King, Daniel; Muñoz González, Raül (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    Recent advances, related to the concepts of Artificial Intelligence (AI) and Machine Learning (ML) and with applications across multiple technology domains, have gathered significant attention due, in particular, to the ...
  • Dynamic traffic grooming in Joint Switching (JoS)-enabled flex-grid/SDM optical core networks 

    Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Spadaro, Salvatore
    Conference report
    Open Access
    We propose and evaluate a dynamic traffic grooming strategy enhancing the performance of JoS-enabled Flex-Grid/SDM networks. Results disclose up to 120% and 44% additional carried network traffic vs. no grooming and existing ...
  • LUT-Free carrier recovery for intradyne optical DPSK receivers in UDWDM-PON 

    Ghasemi, Saeed; Tabares Giraldo, Jeison; Polo Querol, Víctor; Prat Gomà, Josep Joan
    Conference report
    Restricted access - publisher's policy
    We present an LUT-free feed-forward carrier recovery architecture in intradyne optical DPSK receivers that reduces ~41% DSP hardware resources and 61% required process clocks with 85% less power consumption in real-time ...
  • Time interleaved DPSK/ASK transmitter with directly beat modulated DFB for coherent WDM-PON 

    Velásquez Micolta, Juan Camilo; Domingo, Marc; Polo Querol, Víctor; Prat Gomà, Josep Joan
    Conference lecture
    Restricted access - publisher's policy
    We experimentally demonstrate a novel low-cost 2.5 Gb/s/¿ transmitter based on a directly modulated DFB laser featuring DPSK/ASK interleaved in time. Rx sensitivity of -44 dBm is achieved at BER=4· 10-3 with 2 dB improvement ...
  • Soft failure localization in elastic optical networks 

    Vela, A.P.; Shariati, Mohammad Behnam; Ruiz Ramírez, Marc; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Soft failure localization to early detect service level agreement violations is of paramount importance in elastic optical networks (EONs), while it allows anticipating possible hard failure events. Nowadays, effective and ...

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