GCO - Grup de Comunicacions Òptiques: Recent submissions

Now showing items 1-12 of 742

    • Simulation and modelling of C+L+S multiband optical transmission for the OCATA time domain digital twin 

      Khare, Prasunika; Costa, Nelson; Ruiz Ramírez, Marc; Napoli, Antonio; Comellas Colomé, Jaume; Pedro, João; Velasco Esteban, Luis Domingo (Multidisciplinary Digital Publishing Institute (MDPI), 2025-03)
      Article
      Open Access
      C+L+S multiband (MB) optical transmission has the potential to increase the capacity of optical transport networks, and thus, it is a possible solution to cope with the traffic increase expected in the years to come. ...

    • Coexistence of 50 G TWDM with current PON infrastructures 

      Masanas Jiménez, Miquel; Tavares, Ana; Rodrigues, Cláudio; Santos, João; Prat Gomà, Josep Joan; Teixeira, Antanio (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Conference lecture
      Restricted access - publisher's policy
      The feasibility of repurposing NG-PON2 WM for 50G TWDM PON is evaluated. The limited bandwidth and spectral requirements are analyzed. Simulation and experiments measure optical power penalty, sideband distortion, and ...

    • Provisioning of time-sensitive and non-time-sensitive flows with assured performance 

      Velasco Esteban, Luis Domingo; Graziadei, Gianluca; Barzegar, Sima; Ruiz Ramírez, Marc (2025-04)
      Article
      Open Access
      Time-Sensitive Networking (TSN) standards provide scheduling and traffic shaping mechanisms to ensure the coexistence of Time-Sensitive (TS) and non-TS traffic classes on the same network infrastructure. Nonetheless, much ...

    • Phase noise reduction in continuous-variable quantum key distribution using digital filtering 

      Sarmiento, Samael; Llanos Pla, Elisabeth; Adillon Albero, Pol; Tabares Giraldo, Jeison; Lázaro Villa, José Antonio; Etcheverry, Sebastian (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Restricted access - publisher's policy
      Quantum key distribution (QKD) enables information-theoretic-secure secret key exchange thanks to the laws of quantum mechanics. Since it can easily be incorporated into existing telecom networks, continuous-variable QKD ...

    • Privacy preserving digital twin knowledge sharing for multi-domain networks 

      Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Open Access
      Knowledge sharing techniques among OCATA optical layer digital twin instances are proposed for multi-domain scenarios. Intra-domain model transformations are performed to guarantee privacy of intra-domain topology. Remarkable ...

    • Adaptive provisioning of time-varying traffic in translucent SDM elastic optical networks 

      Wlodarczyk, Adam; Knapinska, Aleksandra; Lechowicz, Piotr; Spadaro, Salvatore; Walkowiak, Krzysztof (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Restricted access - publisher's policy
      In this paper, we concentrate on resource allocation of time-varying traffic in translucent space-division multiplexing (SDM) elastic optical networks (EON) with back-to-back (B2B) signal regeneration. The performance is ...

    • Experimental assessment of photonic down-conversion techniques for analog new-radio upstream 

      Masanas Jiménez, Miquel; Santos Blanco, M. Concepción; Prat Gomà, Josep Joan (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Restricted access - publisher's policy
      This paper explores the feasibility of Intermediate Frequency (IF) detection from a directly modulated Radio Frequency (RF) optical signal. We propose a method involving optical series re-modulation of an RF over Fiber ...

    • The role of the TSN controller in E2E deterministic services provisioning 

      Spadaro, Salvatore; Agraz Bujan, Fernando; Pagès Cruz, Albert (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Restricted access - publisher's policy
      The provisioning of deterministic services over E2E multi-technological infrastructures requires the proper configuration of the resources to match the required Key Performance Indicators (KPI), such as latency and jitter. ...

    • Towards zero-touch optical multiband networking with the OCATA optical time domain digital twin 

      Khare, Prasunika; Ghasrizadeh Dezfouli, Mohammad Sadegh; Devigili, Mariano; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Open Access
      Optical in-phase and quadrature (IQ) constellations enclose valuable information regarding the optical elements traversed by the optical signal. Such information can be extracted and exploited by algorithms and models ...

    • Deployment of multi-agent system pipelines for near-real-time operation of 6G network services 

      González Pacheco, Pol; Barzegar, Sima; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Open Access
      A Machine Learning Function Orchestrator deploying and reconfiguring Multi-Agent Systems (MAS) pipelines to support near-real-time control of network services is showcased. An architecture to orchestrate the dynamic ...

    • Provisioning of time-sensitive and non-time-sensitive flows on a common infrastructure 

      Velasco Esteban, Luis Domingo; Ruiz Ramírez, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Open Access
      Provisioning Time-Sensitive (TS) flows on dedicated infrastructures requires just calculating the time-slot dedicated to that service, which is then allocated in the superframes used by the schedulers running in the different ...

    • Autonomous flow routing based on deep reinforcement learning 

      Barzegar, Sima; Shakespear Miles, Hailey Josephine; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2024)
      Conference report
      Open Access
      The progression of 5G and beyond brings forth a demand for dynamic services and with it many service requirements, prompting the need for adaptable and automated solutions. Existing autonomous network operations, reliant ...