Exploració per autor "Velasco Esteban, Luis Domingo"
Ara es mostren els items 65-84 de 252
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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 obertPolarization 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 ... -
Data analytics based origin-destination core traffic modelling
Morales Alcaide, Fernando; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés restringit per política de l'editorialTraffic monitoring is an essential task for network operators since it allows evaluating network performance. Monitoring data from origin-destination (OD) traffic in core virtual network topologies can be collected from ... -
Dedicated protection with signal overlap in elastic optical networks
Cugini, Filippo; Ruiz Ramírez, Marc; Foggi, Tommaso; Velasco Esteban, Luis Domingo; Sambo, Nicola; Castoldi, Piero (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-15)
Article
Accés restringit per política de l'editorialIn optical dedicated path protection (1 1), the same optical signal is transmitted along both working and backup paths. Thus, in 1 1, the transmission parameters need to be configured according to the most impaired path, ... -
Deep learning-based adaptive compression and anomaly detection for smart B5G use cases operation
El Sayed, Ahmad Mohammad; Ruiz Ramírez, Marc; Harb, Hassan; Velasco Esteban, Luis Domingo (2023-01-16)
Article
Accés obertThe evolution towards next-generation Beyond 5G (B5G) networks will require not only innovation in transport technologies but also the adoption of smarter, more efficient operations of the use cases that are foreseen to ... -
Deep learning-based real-time analysis of lightpath optical constellations [Invited]
Ruiz Ramírez, Marc; Sequeira, Diogo Gonçalo; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2022-06-01)
Article
Accés obertOptical network automation requires accurate physical layer models, not only for provisioning but also for real-time analysis. In particular, In-Phase (I) and Quadrature (Q) constellation analysis enables deep understanding ... -
Degradation detection and severity estimation by exploiting an optical time and frequency digital twin
Devigili, Mariano; Ruiz Ramírez, Marc; Barzegar, Sima; Costa, Nelson; Napoli, Antonio; Pedro, João; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2023)
Text en actes de congrés
Accés obertWe exploit the intrinsic advantages of a time and frequency domain digital twin to detect degradations and to estimate their severity. Noticeable performance shown for filter failures confirms the usefulness of this approach. -
Demonstration of latency-aware 5G network slicing on optical metro networks
Shariati, Mohammad Behnam; Velasco Esteban, Luis Domingo; Pedreno Manresa, José Juan; Dochhan, Annika; Casellas Regi, Ramon; Siddique Muqaddas, Abubakar; González de Dios, Oscar; Luque Canto, L.; Lent, Bodo; Ruiz Ramírez, Marc (Optical Society of American (OSA), 2022-01-01)
Article
Accés obertThe H2020 METRO-HAUL European project has architected a latency-aware, cost-effective, agile, and programmable optical metro network. This includes the design of semi-disaggregated metro nodes with compute and storage ... -
Demonstration of monitoring and data analytics-triggered reconfiguration in partially disaggregated optical networks
Gifré Renom, Lluís; Boitier, Fabien; Delezoide, Camille; Ruiz Ramírez, Marc; Buffa, Marta; Morea, Annalisa; Casellas Regi, Ramon; Velasco Esteban, Luis Domingo; Layec, Patricia (Institute of Electrical and Electronics Engineers (IEEE), 2020)
Text en actes de congrés
Accés obertWe demonstrate a novel agent for optical disaggregated optical networks. When the Monitoring and Data Analytics detects a degradation, it recommends the SDN controller to trigger a network reconfiguration computed by a ... -
Design and implementation of a GMPLS-controlled grooming-capable optical transport network
Agraz Bujan, Fernando; Velasco Esteban, Luis Domingo; Perelló Muntan, Jordi; Ruiz Ramírez, Marc; Spadaro, Salvatore; Junyent Giralt, Gabriel; Comellas Colomé, Jaume (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-07)
Article
Accés obertAiming at better resource utilization, an important requirement of future optical transport networks is the capability to accommodate subwavelength client flows efficiently. This can be put into action thanks to the ... -
Design of green optical networks with signal quality guarantee
Cavdar, Cicek; Ruiz Ramírez, Marc; Monti, Paolo; Velasco Esteban, Luis Domingo; Wosinska, Lena (Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialEnergy consumption of communication networks is growing very fast due to the rapidly increasing traffic demand. Consequently, design of green communication networks gained a lot of attention. In this paper we focus on ... -
Designing a digital twin for quantum key distribution
Ahmadian, Seyed Morteza; Ruiz Ramírez, Marc; Berkay Ön, Mehmet; Singh, Sandeep Kumar; Comellas Colomé, Jaume; Proietti, Roberto; Yoo, Sung-Joo Ben; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés obertClassical optical devices lack precision when they operate on single photons. We report a Quantum Digital Twin (QDT) to improve Quantum Key Distribution (QKD) implementations. We show a QDT increasing the Key Exchange Rate ... -
Designing national IP/MPLS networks with flexgrid optical technology
Velasco Esteban, Luis Domingo; Wright, Paul; Lord, Andrew; Junyent Giralt, Gabriel (2012)
Text en actes de congrés
Accés obertWe propose a two-step procedure to design flexgrid-based national networks. Locations are first partitioned into a set of metro areas interconnected through a flexgrid optical network. Next, each network is designed ... -
Disaggregated delay modeling in multidomain networks
Careglio, Davide; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2023)
Text en actes de congrés
Accés obertAccurate delay estimation is one of the enablers of future network connectivity services. If such connectivity services require isolation (slicing), such delay estimation should not be limited to a maximum value defined ... -
Distributed and autonomous flow routing based on deep reinforcement learning
Barzegar, Sima; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés obertA DRL approach with a specific reward function is proposed for autonomous flow routing operating on multilayer scenarios. Illustrative results reveal that the DRL achieves optimal flow routing in terms of cost and service ... -
Distributed and centralized options for self-learning
Tabatabaeimehr, Fatemehsadat; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (2019)
Text en actes de congrés
Accés obertIn general, the availability of enough real data from real fog computing scenarios to produce accurate Machine Learning (ML) models is rarely ensured since new equipment, techniques, etc., are continuously ... -
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 obertA 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 ... -
Distributed intelligence for pervasive optical network telemetry
Velasco Esteban, Luis Domingo; González Pacheco, Pol; Ruiz Ramírez, Marc (Institute of Electrical and Electronics Engineers (IEEE), 2023-09)
Article
Accés obertOptical network automation and failure management require measuring the status and the performance of the different network devices to anticipate any degradation and ensure the quality of the provided services, i.e., optical ... -
Distributing data analytics for efficient multiple traffic anomalies detection
Pérez Vela, Alba; Ruiz Ramírez, Marc; Velasco Esteban, Luis Domingo (2017-03-22)
Article
Accés obertTraffic anomalies can create network congestion, so its prompt and accurate detection would allow network operators to make decisions to guarantee the network performance avoiding services to experience any perturbation. ... -
Dual time and frequency domain optical layer digital twin
Devigili, Mariano; Ruiz Ramírez, Marc; Costa, Nelson; Napoli, Antonio; Pedro, João; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés obertWe demonstrate a digital twin for failure detection in optical networks. Artificial neural networks-based models for optical constellation analysis enable predicting the transmitted signal in the time domain whereas ... -
Dynamic and efficient point-to-point and point-to-multipoint communications by slicing the optical constellation
Iqbal, Masab; Ruiz Ramírez, Marc; Costa, Nelson; Napoli, Antonio; Pedro, João; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2022)
Comunicació de congrés
Accés obertOptical Constellation Slicing is proposed to convey heterogenous traffic from a source to multiple destinations, while supporting dynamic capacity allocation. Illustrative numerical results reveal the potential of the ...