Recent Submissions

  • Extending the OCATA digital twin for optical connections based on digital subcarrier multiplexing 

    Devigili, Mariano; Sequeira, Diogo Gonçalo; Ruiz Ramírez, Marc; Costa, Nelson; Castro, Carlos; Napoli, Antonio; Pedro, João; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2024)
    Conference report
    Open Access
    Time-domain digital twin models for single carrier and DSCM signals are developed that propagate features to estimate the impact of filter penalties on the BER. Results show remarkable accuracy, which is used for lightpath ...
  • Control and orchestration solutions for end-to-end time sensitive services in future 6G networks 

    Spadaro, Salvatore; Agraz Bujan, Fernando; Pagès Cruz, Albert (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference lecture
    Restricted access - publisher's policy
    The provisioning of time sensitive end-to-end services in future 6G networks imposes multiple technical challenges, spanning from the data plane to the control and orchestration planes. In particular, the automation of the ...
  • On the benefits of optical disaggregated datacentre infrastructures for machine learning applications 

    Pagès Cruz, Albert; Agraz Bujan, Fernando; Spadaro, Salvatore (The Institution of Engineering and Technology (IET), 2023)
    Conference lecture
    Open Access
    ML applications present time varying requirements that should be accounted for an optimized deployment. We evaluate the benefits of disaggregated DC infrastructures for supporting them and propose a dynamic re-orchestration ...
  • Machine learning-based actuation orchestration for inter-/intra-data center networks 

    Spadaro, Salvatore; Pagès Cruz, Albert; Agraz Bujan, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference report
    Restricted access - publisher's policy
    Datacenter (DC) infrastructures are essential to support the requirements posed by nowadays digital society and emerging industrial trends. In such context, a proper actuation management has become especially relevant for ...
  • Low-cost all-optical switching nodes for ultra-dense optical metro-access networks 

    Sarmiento Hernández, Samael; Lázaro Villa, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference report
    Open Access
    Optical metro-access networks (OMANs) must enable the connectivity among 5G-based radio stations, edge datacentres, businesses, and home users. In such a heterogenous scenario, greater scalability, higher levels of dynamic ...
  • Practical spectral efficiency estimation for optical networking 

    Gené Bernaus, Joan M.; Perelló Muntan, Jordi; Cho, Junho; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference report
    Open Access
    Assigning the right spectral resources is the key to flex-grid optical networking. Finding the optimal spectral allocation is a daunting task, as there are many variables at play that make accurate network models very ...
  • Evaluating the impact of the guard band width on the benefits of probabilistic constellation shaping in future flex-grid over multicore fibre optical backbone networks 

    Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Cho, Junho; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference report
    Open Access
    Probabilistic constellation shaping (PCS) has emerged as an advanced modulation technique that provides a fine-grained software-defined trade-off between achievable spectral efficiency (SE) and transmission reach to deliver ...
  • Reducing the number of transceivers with probabilistic constellation shaping in flex-grid over MCF optical backbone networks 

    Perelló Muntan, Jordi; Gené Bernaus, Joan M.; Cho, Junho; Spadaro, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference lecture
    Open Access
    This paper quantifies the potential reduction in the number of required transceivers that the use of probabilistic constellation shaping (PCS) can bring to Flex-Grid over multicore fiber (MCF) optical backbone networks, ...
  • Distributed architecture supporting intelligent optical measurement aggregation and streaming event telemetry 

    González Pacheco, Pol; Casellas Regi, Ramon; Pedreno Manresa, José Juan; Autenrieth, Achim; Boitier, Fabien; Shariati, Mohammad Behnam; Fischer, Johannes Karl; Ruiz Ramírez, Marc; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference report
    Open Access
    A distributed telemetry system integrating optical measurement and event data collection is demonstrated. Measurements of optical spectra from Nokia Bell Labs, of optical transponders from ADVA and SDN controller events ...
  • Experimental validation of deep learning-based models for optical time domain analysis 

    Devigili, Mariano; Sequeira, Diogo Gonçalo; Santos, Caio; Ruiz Ramírez, Marc; Shariati, Mohammad Behnam; Costa, Nelson; Napoli, Antonio; Fischer, Johannes Karl; Pedro, João; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference lecture
    Open Access
    Optical constellations generated by Deep Learning models trained with datasets generated through simulation are compared to experimentally collected ones. The obtained high accuracy enables its application for optical time ...
  • Optical interconnection for datacenters: To switch or not to switch 

    Comellas Colomé, Jaume; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference report
    Open Access
    Optical interconnection is seen as a promising solution to alleviate the congestion problems inside datacenters. Previously reported studies focus solely on optical circuit switching to establish connections. In this work ...
  • Secure optical communications based on fast cryptography 

    Velasco Esteban, Luis Domingo; Iqbal, Masab; Ruiz Ramírez, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Conference report
    Open Access
    Although security solutions, like Advanced Encryption Standard (AES) and ChaCha, are common at the packet layer, secure transmission at the optical layer is still not implemented. The reason is that such cryptographic ...

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