Recent Submissions

  • 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 (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    We focus on a migration planning from elastic to spectrally-spatially flexible optical networks by upgrading regular with SDM-capable ROADMs. Our most promising strategy reveals that by migrating 30% of the regular ROADMs ...
  • Simultaneous DPSK-ASK modulated dual-EML transmitter for coherent UDWDM-PON 

    Velásquez Micolta, Juan Camilo; Domingo, Marc; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    An integrated dual-EML is modulated to obtain a simultaneous DPSK/ASK signal. Rx sensitivity of -40 dBm at BER=10-3 was achieved at 5Gb/s with simple heterodyne detection.
  • Direct phase modulation for UDWDM ONU with beat signals 

    Velásquez Micolta, Juan Camilo; Cano Valadez, Iván Nicolás; Tabares Giraldo, Jeison; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    An ONU transmitter for UDWDM PONs based on direct phase modulated distributed feedback lasers (DFB) through digital beat signals is proposed and experimentally tested. The amplitude and duty cycle of the modulating signal ...
  • Periodic defragmentation in elastic optical networks 

    Comellas Colomé, Jaume; Vicario, L.; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    The main weakness of Elastic Optical Networks (EON) stems from spectrum fragmentation. An analysis of periodic defragmentation in EONs under dynamic traffic conditions is carried out. The effects of different defragmentation ...
  • Flexible fog computing and telecom architecture for 5G networks 

    Velasco Esteban, Luis Domingo; Ruiz Ramírez, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    We review a novel, secure, highly distributed and ultra-dense fog computing infrastructure, which can be allocated at the extreme edge of a wired/wireless network for a Telecom Operator to provide multiple unified, ...
  • Monitoring and data analytics: Analyzing the optical spectrum for soft-failure detection and identification 

    Shariati, Mohammad Behnam; Vela, Alba P.; Ruíz Martín, María Dolores; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference lecture
    Restricted access - publisher's policy
    Failure detection is essential in optical networks as a result of the huge amount of traffic that optical connections support. Additionally, the cause of failure needs to be identified so failed resources can be excluded ...
  • Real-time spectrum surveillance in filterless optical networks 

    Shariati, Mohammad Behnam; Ruíz Martín, María Dolores; Sgambelluri, Andrea; Cugini, Filippo; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    A monitoring system exploiting data analytics and cost-effective optical spectrum analyzers with under 1.2GHz resolution is proposed. Its performance is demonstrated in a filterless network experimental test-bed. The system ...
  • Spectrally and spatially flexible optical networks: recent developments and findings 

    Shariati, Mohammad Behnam; Klonidis, Dimitrios; Marom, Dan M.; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo; Tomkos, Ioannis (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Space division multiplexing (SDM) has been proposed as the ultimate solution to address the capacity crunch of optical transport networks. The efficient utilization of SDM requires some forms of spatial integration which ...
  • 5G connected vehicles supported by optical fiber access 

    Lázaro Villa, José Antonio; Coves Garrido, Massiel; Sarmiento Hernández, Samael; Altabas, Jose Antonio; Lerin, Adolfo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    Future autonomous vehicle will require a high level of computation, communication, sensing and fast response actuation. Communication among vehicles, and vehicles to infrastructure, accessing to remote systems and services ...
  • Toward multilayer disaggregated node telemetry and local decision making 

    Velasco Esteban, Luis Domingo; Gifré Renom, Lluís; Izquierdo Zaragoza, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    A generic node agent supporting disaggregated node telemetry is presented. Data collection close to devices enable making local decisions, leveraging SDN controllers for network-wide operations. The agent is demonstrated ...
  • CASTOR: An architecture to bring cognition to transport networks 

    Velasco Esteban, Luis Domingo; Gifré Renom, Lluís; Izquierdo Zaragoza, José Luis; Julián Moreno, Guillermo; López de Vergara Méndez, Jorge E. (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    CASTOR architecture to enable cognitive networking is demonstrated. Extended nodes make local decisions, whilst a centralized system beside the network controller makes network-wide decisions. Interaction with ONOS, Net2Plan, ...
  • Experimental demonstration of cognitive provisioning and alien wavelength monitoring in multi-domain EON 

    Proietti, Roberto; Chen, Xiaoliang; Castro Casales, Alberto; Liu, Gengchen; Lu, Hongbo; Zhang, Kaiqi; Guo, Jiannan; Zhu, Zuqing; Velasco Esteban, Luis Domingo; Yoo, Sung-Joo Ben (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    This paper proposes a cognitive multi-domain EON architecture with machine-learning aided RMSA and alien wavelength monitoring. Testbed experiments show modulation format recognition, QoT monitoring and cognitive routing ...

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