GCO - Grup de Comunicacions Òptiques: Enviaments recents

Ara es mostren els items 1-12 de 692

    • Context-based e2e autonomous operation in B5G networks 

      Wang, Shaoxuan; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Multidisciplinary Digital Publishing Institute (MDPI), 2024-03-01)
      Article
      Accés obert
      The research and innovation related to fifth-generation (5G) networks that has been carried out in recent years has decided on the fundamentals of the smart slice in radio access networks (RANs), as well as the autonomous ...

    • 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)
      Text en actes de congrés
      Accés obert
      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 ...

    • Optimal design of cost-effective OXC and ROADM nodes to maximize the throughput of mesh-based u-DWDM metro-access networks 

      Sarmiento Hernández, Samael; Pagès Cruz, Albert; Spadaro, Salvatore; Lázaro Villa, José Antonio (Springer, 2023-06-22)
      Article
      Accés obert
      Metro-access networks will play a primary role in future network fabrics, enabling connectivity among different actors such as 5G-based radio stations, edge datacenters, businesses, and home users. To provide such heterogeneous ...

    • Evaluating scalability, resiliency, and load balancing in software-defined networking 

      Barbecho Bautista, Pablo; Comellas Colomé, Jaume; Urquiza Aguiar, Luis Felipe (Multidisciplinary Digital Publishing Institute (MDPI), 2023-12-04)
      Article
      Accés obert
      With emerging technologies like cloud computing and big data, managing traditional networks has become more demanding. Software-defined networking (SDN) promises faster implementation, flexibility, and simplified network ...

    • DARIUS: a digital twin to improve the performance of quantum key distribution 

      Ahmadian, Seyed Morteza; Ruiz Ramírez, Marc; Comellas Colomé, Jaume; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2024-03-01)
      Article
      Accés obert
      Polarization encoded Quantum Key Distribution (QKD) is attracting great attention as it generates unlimitedly and unconditionally secure keys for different use cases. Despite its theoretical excellence based on quantum ...

    • 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)
      Text en actes de congrés
      Accés obert
      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)
      Text en actes de congrés
      Accés obert
      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)
      Comunicació de congrés
      Accés obert
      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)
      Text en actes de congrés
      Accés obert
      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)
      Comunicació de congrés
      Accés obert
      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 ...

    • Autonomous flow routing for near real-time quality of service assurance 

      Barzegar, Sima; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (2024/04)
      Article
      Accés obert
      The deployment of beyond 5G and 6G network infrastructures will enable highly dynamic services requiring stringent Quality of Service (QoS). Supporting such combinations in today’s transport networks will require high ...

    • LUT-free carrier recovery for intradyne optical DPSK receivers in udWDM-PON 

      Ghasemi, Saeed; Tabares Giraldo, Jeison; Polo Querol, Víctor; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2019-03-15)
      Article
      Accés obert
      We present a lookup table (LUT)-free carrier recovery architecture for intradyne optical DPSK receivers that reduce the required digital signal processing hardware resources, power consumption as well as total process ...