Recent Submissions

  • Machine learning-based in-band OSNR estimation from optical spectra 

    Locatelli, Fabiano; Christodoulopoulos, Konstantinos; Svaluto Moreolo, Michela; Fàbrega, Josep Maria; Spadaro, Salvatore (2019-12-15)
    Article
    Open Access
    Measuring the optical signal to noise ratio (OSNR) at certain network points is essential for failure handling, for single connection but also global network optimization. Estimating OSNR is inherently difficult in dense ...
  • Split-enabled 350–630 Gb/s optical interconnect with direct detection NOMA-CAP and 7-core multi-core fiber 

    Sarmiento, Samael; Delgado Mendinueta, José Manuel; Altabas, Jose Antonio; Spadaro, Salvatore; Shinada, Satoshi; Furukawa, Hideaki; Vegas Olmos, Juan José; Lázaro Villa, José Antonio; Wada, Naoya (2020-05-15)
    Article
    Restricted access - publisher's policy
    The ever-growing data traffic volume inside data centers caused by the popularization of cloud services and edge computing demands scalable and cost-efficient network infrastructures. With this premise, optical interconnects ...
  • Enabling multi-segment 5G service provisioning and maintenance through network slicing 

    Montero Herrera, Rafael; Agraz Bujan, Fernando; Pagès Cruz, Albert; Spadaro, Salvatore (2020-01-03)
    Article
    Restricted access - publisher's policy
    The current deployment of 5G networks in a way to support the highly demanding service types defined for 5G, has brought the need for using new techniques to accommodate legacy networks to such requirements. Network Slicing ...
  • Random number generation by coherent detection of quantum phase noise 

    Álvarez, Juan Rafael; Sarmiento, Samael; Lázaro Villa, José Antonio; Gené Bernaus, Joan M.; Pérez Torres, Juan (2020-02-17)
    Article
    Open Access
    In 2010 Qi et al. [Opt. Lett. 35(3), 312 (2010)] demonstrated a random number generator based on the drift of the phase of a laser due to spontaneous emission, The out-of-the-lab implementation of this scheme presents two ...
  • Greenfield gradual migration planning toward spectrally-spatially flexible optical networks 

    Lechowicz, Piotr; Goscien, Roza; Rumipamba Zambrano, Rubén Darío; Perelló Muntan, Jordi; Spadaro, Salvatore; Walkowiak, Krzysztof (2019-10-01)
    Article
    Open Access
    This article identifies the unavoidably required upgrade of short-term realizable elastic optical networks (EONs) operating over single-mode fibers toward spectrally-spatially flexible optical networks (SS-FONs), exploiting ...
  • Knowledge management in optical networks: architecture, methods, and use cases [Invited] 

    Ruiz Ramírez, Marc; Tabatabaeimehr, Fatemehsadat; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2020-01-01)
    Article
    Restricted access - publisher's policy
    Autonomous network operation realized by means of control loops, where prediction from machine learning (ML) models is used as input to proactively reconfigure individual optical devices or the whole optical network, has ...
  • Near real-time estimation of end-to-end performance in converged fixed-mobile networks 

    Bernal Escribano, Álvaro; Richart Gutiérrez, Matías Mario; Ruiz Ramírez, Marc; Castro Casales, Alberto; Velasco Esteban, Luis Domingo (Elsevier, 2020-01-15)
    Article
    Restricted access - publisher's policy
    The independent operation of mobile and fixed network segments is one of the main barriers that prevents improving network performance while reducing capital expenditures coming from overprovisioning. In particular, a ...
  • Differential 8-APSK monolithically integrated dual-EML transmitter for flexible coherent PONs 

    Velásquez Micolta, Juan Camilo; Tabares Giraldo, Jeison; Prat Gomà, Josep Joan (2019-06-01)
    Article
    Open Access
    We experimentally demonstrate a simultaneous amplitude and phase modulation of a monolithically integrated dual electro-absorption modulated laser. The proposed technique combines a 4-ary direct phase modulation with a ...
  • Experimental assessment of 10 Gbps 5G multicarrier waveforms for high-layer split U-DWDM-PON-based fronthaul 

    Sarmiento Hernández, Samael; Altabas, Jose Antonio; Spadaro, Salvatore; Lázaro Villa, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2019-05-15)
    Article
    Open Access
    The current constant growth in mobile networks' traffic demands caused by the popularization of cloud and streaming services on personal devices, requires architectural changes so as to fulfill all new 5G mobile network ...
  • Orchestrating virtual slices in data centre infrastructures with optical DCN 

    Pagès Cruz, Albert; Agraz Bujan, Fernando; Montero Herrera, Rafael; Landi, Giada; Capitani, Marco; Gallico, Domenico; Biancani, Matteo; Nejabati, Reza; Simeonidou, Dimitra; Spadaro, Salvatore (2019-07-01)
    Article
    Restricted access - publisher's policy
    The emergence of new paradigms and services is pushing the limits of nowadays cloud infrastructures. It is a fact that current solutions lack in the flexibility and configurability to adapt to heterogeneous requirements ...
  • Enable advanced QoS-aware network slicing in 5G networks for slice-based media use cases 

    Wang, Qi; Alcaraz Calero, Jose; Ricart Sánchez, Rubén; Barros Weiss, Maria; Spadaro, Salvatore (2019-01-01)
    Article
    Open Access
    Media use cases for emergency services require mission-critical levels of reliability for the delivery of media-rich services, such as video streaming. With the upcoming deployment of the fifth generation (5G) networks, a ...
  • A universal specification for multicore fiber crosstalk 

    Gené Bernaus, Joan M.; Winzer, Peter J. (2019-05-01)
    Article
    Open Access
    In order to transition multi-core fiber (MCF) technologies from their research state to volume production, the key design specifications have to be broadly agreed upon, first and foremost an acceptable level of inter-core ...

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