2026
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L. Velasco, P. Gonzalez, and M. Ruiz, "Coordinated Orchestration and Operation of Federated Learning Applications," accepted in International Conference on Optical Network Design and Modeling (ONDM), 2026.
M. Ruiz, M. Carnero, A. Maeso, and L. Velasco, "Fixed Transport Network Cost Analysis under 6G Traffic Scenarios and Technologies," accepted in International Conference on Optical Network Design and Modeling (ONDM), 2026.
T. Silverio, G. Parisi, P. Torres-Ferrera, E. Paz, S. Srivallapanondh, M. Masanas, L. Velasco, A. Napoli, "Experimental Verification of Fast EGN Model for Multi-Span Metro-Access DSCM Systems," accepted in International Conference on Optical Network Design and Modeling (ONDM), 2026.
P. Gonzalez, A. Moawad, S. Ghasrizadeh. R. Casellas, M. Ruiz, H. Zaid, L. Velasco, "Experimental Validation of Lightpath Operation based on Continuous Digital-Twin Model Tuning," accepted in Optical Fiber Communication Conference (OFC), 2026.
A. Marotta, P. Robles, P. Gonzalez, L. D'Errico, I. Babiker, C. Centofanti, G. Di Sciullo, C. Antonelli, L. Velasco, S. Tennina, S. Parker, M. Quagliotti, E. Riccardi, O. Gonzalez de Dios, F. Cugini, and A. Sgambelluri, "End-to-End Orchestration across MCF Infrastructure: Field Trial of Spatial PON and Metro Convergence with O-RAN for AR/VR Services with Edge Offload," accepted in Optical Fiber Communication Conference (OFC), 2026.
M. Raza, A. Moawad, V. Karunakaran, N. Dsilva, A. Sgambelluri, R. Casellas, B. Ali, A. Giorgetti, P. Robles, P. González, V. Tsekenis, S. Barmpounakis, P. Demestichas, L. Velasco, F. Cugini, B. Shariati, J. Fischer, and R. Freund, "Demonstration of Self-Healing in IPoWDM Network with Dual Protection Using MBoSDM and NetDevOps Solutions in Support of 6G," accepted in Optical Fiber Communication Conference (OFC), 2026.
E. Paz, G. Parisi, P. Torres-Ferrera, T. Silvério, S. Srivallapanondh, M. Masanas, L. Velasco, S. Erkilinc, R. Magri, and A. Napoli, "Analytical QoT Model for Bi-Di Single-Fiber Point-to-Multipoint DSCM Coherent Systems," accepted in Optical Fiber Communication Conference (OFC), 2026.
2025
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F. Paolucci, M. Guaitolini, A. Sgambelluri, F. Alhamed, D. Uomo, E. Paolini, M. Satler, P. Gonzalez, M. Ruiz, L. Velasco, S. Parker, S. Pryor, G. Pongracz, A. Mihaly, A. Dalgkitsis, C. Papagianni, S. Laki, D. Kis, A. Nanos, V. Lefebvre, M. Angoustures, J-J. Vegas Olmos, "Augmented Reality in the DESIRE6G Cloud-native and Programmable Infrastructure with Multi-Agent System and Pervasive Monitoring," in Proc. IEEE Conference on Standards for Communications and Networking (CSCN), 2025.
F. Agraz, A. Pages, A. Calvillo-Fernandez, D. Rico-Menendez, A. de la Oliva, P. Giardina, M. Ravalli, J-L. Carcel, M. Ruiz, L. Velasco, S. Spadaro, "Demonstration of a Control Plane in Support of E2E Deterministic Service Provisioning over a Multi-domain Multi-technology 6G Network," in Proc. International Conference on Transparent Optical Networks (ICTON), 2025.
P. Gonzalez, S. Ghasrizadeh, S. Barzegar, H. Shakespear-Miles, M. Ruiz, L. Velasco, "Demonstrating Lightpath Operation with the OCATA Digital Twin in Multiband Optical Networks," in Proc. International Conference on Transparent Optical Networks (ICTON), 2025.
M. Ruiz and L. Velasco, "Optical Layer and Quantum Digital Twins for Enhancing Secure Autonomous Network Operation ," in Proc. International Conference on Transparent Optical Networks (ICTON), 2025.
S. Ghasrizadeh, M. Ruiz, and L. Velasco, "OCATA Optical Multiband Time Domain Digital Twin: Supporting Lightpath Provisioning with NLI Mitigation in Multiband Optical Networks ," in Proc. International Conference on Transparent Optical Networks (ICTON), 2025.
H. Shakespear-Miles, N. Koneva, S. Barzegar, M. Ruiz, A. Sánchez-Macian, and L. Velasco, "Enhancing DRL-Based Multi-Path Routing with Subflow Identification in 6G Packet-over-Optical Networks," in Proc. International Conference on Transparent Optical Networks (ICTON), 2025.
X. Lu, L. Velasco, and M. Ruiz, "Optimizing multicast services in Flexible-Rate Passive Optical Networks," in Proc. International Conference on Transparent Optical Networks (ICTON), 2025.
M. Ruiz, H. Shakespear-Miles, S. Barzegar, A. Sgambelluri, and L. Velasco, "On the Benefits of Multi-Agent Systems for Operational Expenditure Savings," in Proc. International Conference on Transparent Optical Networks (ICTON), 2025.
H. Shakespear-Miles, S. Barzegar, M. Ruiz, and L. Velasco, "Intelligent Reconfiguration of Distributed Control of 6G Network Services," in Proc. International Conference on Photonics in Switching and Computing (PSC), 2025.
S. Ghasrizadeh, N. Costa, M. Ruiz, A. Napoli, J. Pedro, and L. Velasco, "Creating and Tuning Multiband Optical Transmission Digital Twin Lightpath Models," in Proc. International Conference on Optical Network Design and Modeling (ONDM), 2025.
M. Devigili, E. Riccardi, A. Nespola, R. Morro, S. Straullu, R. D'Ingillo, V. Curri, L. Velasco, F. Granelli, "ML-based Modeling of EDFA Pluggable Modules for OSNR Estimation," in Proc. International Conference on Optical Network Design and Modeling (ONDM), 2025.
L. Velasco and M. Ruiz, "Modelling and Evaluating Optical Transmission With the OCATA Optical Time Domain Digital Twin," in Proc. IEEE International Conference on Machine Learning for Communication and Networking (ICMLCN), 2025.
H Shakespear, N. Koneva, S. Barzegar, M. Ruiz, A. Sanchez-Macian, and L. Velasco, "Near-Real-Time Autonomous Multi-Path Flow Routing with Subflow Identification," in Proc. Optical Fiber Communication Conference (OFC), 2025.
L. Velasco, S. Civelli, P. Nadimi Goki, S. Barzegar, M. Ruiz, and L. Poti, "Toward Trusted Optical Communications with Optical Physical Unclonable Functions and Blockchain," in Proc. Optical Fiber Communication Conference (OFC), 2025.
H. Zaid, A. Moawad, B. Shariati, R. Emmerich, A. Giorgetti, R. Casellas, C. Schmidt-Langhorst, E. Fernandez, P. Pavon-Marino, F. Cugini, V. Karunakaran, E. Riccardi, R. Morro, R. Bian, C. Matrakidis, C. Santos, P. Gonzalez, L. Velasco, A. Autenrieth, C. Schubert, J. K. Fischer, and R. Freund, "Autonomous Service Provisioning and Self-Healing in Multi-Band Multi-Domain IPoWDM Networks," in Proc. Optical Fiber Communication Conference (OFC), 2025.
2024
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R. Morro, E. Riccardi, A. Chiado Piat, A. Pagano, A. Giorgetti, E. Kosmatos, S. Xia, H. Freire, N. Calabretta, P. Gonzalez, L. Velasco, A. Sgambelluri, P. Pavon-Marino, E. Fernandez, J. Ortiz, A. Stavdas, C. Matrakidis, F. Cugini, L. Nadal, R. Casellas O. Gonzalez De Dios, "Field Trial of Transparent Multi-band Multi-domain Disaggregated IPoWDM Networks," in Proc. European Conference on Optical Communication (ECOC), 2024.
A. Calvillo-Fernandez, M. Ravalli, J. Brenes, J-L. Carcel, D. Rico-Menendez, F. Agraz, P. Giardina, S. Spadaro, and L. Velasco, "Artificial Intelligence Control Plane for Deterministic Networks Proof-of-Concept," in Proc. Workshop on 6G Programmable Deterministic Networking with AI (6GPDN), collocated with ACM International Conference on Mobile Computing and Networking (MobiCom), 2024.
C. Grasselli, L. Rinieri, P. Gonzalez, L. Velasco, D. Careglio, and F. Callegati, "In-network Computing for Secure Distributed AI," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
L. Velasco and M. Ruiz, "Provisioning of Time-Sensitive and non-Time-Sensitive Flows on a Common Infrastructure," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
S. Barzegar, H. Shakespear-Miles, M. Ruiz, and L. Velasco, "Autonomous Flow Routing Based on Deep Reinforcement Learning," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
P. Gonzalez, S. Barzegar, M. Ruiz, and L. Velasco, "Deployment of Multi-Agent System Pipelines for Near-Real-Time Operation of 6G Network Services ," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
H. Shakespear-Miles, S. Barzegar, M. Ruiz, and L. Velasco, "Distributed Network Control for QoS Assurance in Multi-Domain Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
P. Khare, S. Ghasrizadeh, M. Devigili, M. Ruiz, and L. Velasco, "Towards Zero-Touch Optical Multiband Networking with the OCATA Optical Time Domain Digital Twin," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
S. Wang, M. Ruiz, and L. Velasco, "Smart Operation of 6G RAN supported by Autonomous Transport Networks ," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
S. Ghasrizadeh, F. Arpanaei, L. Velasco, and H. Beyranvand, "Optimizing Resource Allocation in Filterless Elastic Optical Networks over C+L Band: QoT-Aware Approach ," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
M. Ahmadian, J. Buruaga, R. Mendez, J. Brito, A. Pastor, J. Rivas, J. Comellas, M. Ruiz, V. Martin, and L. Velasco, "Demonstration of Classical and Hybrid Solutions for Lightpath Security Using Quantum Keys," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
M. Ruiz, A. Pages, F. Moreno, A. Buendia, F. Agraz, S. Spadaro, and L. Velasco, "Demonstration of Integrated Control Plane for Service Flow Provisioning in Time Sensitive Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
P. Gonzalez, M. Angoustures, A. Zahir, S. Barzegar, M. Ruiz, M. Groshev, V. Lefebvre, and L. Velasco, "Deployment of Genuine Multi-Agent Pipelines for Near-Real-Time Control of 6G Network Services," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
F. Alhamed, M. Guaitolini, P. Gonzalez, R. Berozashvili, L. Ismail, H. Shakespear-Miles, S. Barzegar, L. Velasco, M. Ruiz, J.J. Olmos Vegas, A. Sgambelluri and F. Paolucci, "Augmented Reality App with AI-based Pervasive Latency Monitoring of RAN and Programmable Metro Packet-Optical Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2024.
J.M. Rivas-Moscoso, A. Melgar, J. Morales, A. Pastor, J. Folgueira, L. Poti, K. Krilakis, D.K. Syvridis, A. Mandilara, L. Velasco, M. Ruiz, S. Bahrani, R. Nejabati, R. Oliveria, M. Svaluto Moreolo, M. Iqbal, I. Tafur Monroy, S. Rommel, C. Rubio Garcia, P. Nguyen, A. Pagano, P. Nadimi Goki, A. Sanchez-Macian, J.C. Hernandez-Hernandez, D. Larrabeiti and S. Civelli, "A Security Plane Architecture for Ultra-low-energy, High-capacity Optical Transport Networks," in Proc. International Conference on Quantum Communications, Networking, and Computing (QCNC), 2024.
L. Velasco, G. Graziadei, Y. El Kaisi, J. Villares, O. Muñoz, J. Vidal, and M. Ruiz, "Provisioning of Time-Sensitive and non-Time-Sensitive Flows: from Control to Data Plane," in Proc. International Workshop on Time-Sensitive and Deterministic Networking (TENSOR), collocated with the IFIP Networking conference, 2024.
A. Zahir, M. Groshev, M. Angoustures, V. Lefebvre, P. Gonzalez, and L. Velasco, "Distributed Genuine Intelligence: From Agent Integrity to Secure Inter-Agent Communications," in Proc. European Conference on Networks and Communications (EuCNC), 2024.
S. Barzegar, H. Shakespear-Miles, F. Alhamed, F. Paolucci, P. Gonzalez, M. Ruiz, and L. Velasco, "Near Real-Time Autonomous Multi-Flow Routing with Dynamic Optical Bypass Management," in Proc. International Conference on Optical Network Design and Modeling (ONDM), 2024.
P. Gonzalez, M. Ruiz, and L. Velasco, "Experimental Evaluation of Secure Digital Twin Model Exchange Using Distributed Ledger Technologies," in Proc. International Conference on Optical Network Design and Modeling (ONDM), 2024.
S. Ghasrizadeh, P. Khare, M. Ruiz, L. Velasco, "Using the OCATA Digital Twin to Improve QoT of Optical Connections in Multiband Optical Networks," in Proc. International Conference on Optical Network Design and Modeling (ONDM), 2024.
P. Gonzalez, A. Zahir, Ch. Grasselli, A. Muñiz, M. Groshev, S. Barzegar, F. Callegati, D. Careglio, M. Ruiz, L. Velasco, "Deployment of Secure Machine Learning Pipelines for Near-Real-Time Control of 6G Network Services," in Proc. Optical Fiber Communication Conference (OFC), 2024.
P. Gonzalez, F. Alhamed, S. Barzegar, F. Paolucci, J.J. Vegas Olmos, M. Ruiz, L. Velasco, "Distributed Multi-Agent System fed with Telemetry Data for Near-Real-Time Service Operation," in Proc. Optical Fiber Communication Conference (OFC), 2024.
M. Ahmadian, R. Vicente, J. Brito, A. Lopez-Garcia, A. Pastor, J. Moscoso, J. Comellas, M. Ruiz, V. Martín, L. Velasco, "Experimental Demonstration of Optical Encryption Using Quantum Keys: Two Scenarios," in Proc. Optical Fiber Communication Conference (OFC), 2024.
M. Ruiz and L. Velasco, "Privacy Preserving Digital Twin Knowledge Sharing for Multi-domain Networks," in Proc. Optical Fiber Communication Conference (OFC), 2024.
M. Devigili, D. Goncalo, M. Ruiz, N. Costa, C. Castro, A. Napoli, J. Pedro, L. Velasco, "Extending the OCATA Digital Twin for Optical Connections based on Digital Subcarrier Multiplexing," in Proc. Optical Fiber Communication Conference (OFC), 2024.
2023
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P. Giardina, P. Szilagyi, C. Chiasserini, J-L. Carcel, L. Velasco, S. Spadaro, F. Agraz, S. Robitzsch, R. Rosales, V. Frascolla, R. Doostnejad, A. Calvillo, "A hierarchical AI-based control plane solution for multi-technology deterministic networks," in Proc. 6G Programmable Deterministic Networking with AI (6G-PDN) Workshop co-located with MobiHoc, 2023.
S. Barzegar, M. Ruiz, and L. Velasco, "Reinforcement Learning for Autonomous Traffic Flow Capacity Management," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
F. Tabatabaeimehr, L. Velasco, M. Ruiz, H. Khalili, R. Aparicio-Pardo, "Dynamic Traffic Prediction Model Retraining for Autonomous Network Operation," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
M. Iqbal, M. Ahmadian, L. Velasco, and M. Ruiz, "Reliable Quantum Communication," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
P. Khare, N. Costa, J. Pedro, A. Napoli, F. Arpanaei, J. Comellas, M. Ruiz and L. Velasco, "SSMS: A Split Step MultiBand Simulation Software," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
D. Careglio, M. Ruiz, and L. Velasco, "Disaggregated Delay Modeling in Multidomain Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
P. Gonzalez, L. Velasco and M. Ruiz, "A Distributed Telemetry Architecture for Optical Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
J. Comellas, M. Ruiz, and L. Velasco, "PILOT: A Methodology for Modeling the Performance of Packet Connections," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
M. Devigili, M. Ruiz, N. Costa, C. Castro, A. Napoli, J. Pedro, and L. Velasco, "Extending the OCATA Digital Twin to the Frequency Domain," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
H. Shakespear-Miles, M. Ruiz, and L. Velasco, "Dynamic Subcarrier Allocation for P2MP Connections," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
L. Velasco, M. Iqbal, and M. Ruiz, "Secure Optical Communications based on fast Cryptography," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
S. Barzegar, M. Ruiz, and L. Velasco, "Intent-Based Networking for Zero-Touch Optical Networking," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
M. Ahmadian, M. Ruiz, J. Comellas, and L. Velasco, "ML-Aided SOP Compensation to Increase Key Exchange Rate in QKD Systems," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
S. Wang, M. Ruiz, and L. Velasco, "Optical network traffic analysis under B5G/6G RAN operation," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
L. Velasco, S. Barzegar, and M. Ruiz, "Using a SNR Digital Twin for Failure Management," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
M. Ruiz, D. Careglio, and L. Velasco, "CURSA-SQ models for Time-Sensitive Networking," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
A. El Sayed, M. Ruiz, H. Harb, and L. Velasco, "Comparison of Statistical and Machine Learning-Based Approaches for Telemetry Data Size Reduction," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2023.
L. Velasco, M. Ruiz, P. Gonzalez, F. Paolucci, A. Sgambelluri, L. Valcarenghi, C. Papagianni, "Pervasive Monitoring and Distributed Intelligence for 6G Near Real-Time Operation," in Proc. European Conference on Networks and Communications (EuCNC), 2023.
L. Velasco, M. Ruiz, P. Gonzalez, V. Lefebvre, C. J. Bernardos, A. Muñiz, "Securing Multi-Agent Systems for Near Real-Time Control of 6G Services," in Proc. European Conference on Networks and Communications (EuCNC), 2023.
L. Velasco, M. Devigili, and M. Ruiz, "Applications of Digital Twin for Autonomous Zero-Touch Optical Networking [Invited]," invited in International Conference on Optical Network Design and Modeling (ONDM), 2023.
S. Barzegar, M. Richart, S. Wang, A. Castro, M. Ruiz, and Luis Velasco, "Coordination of Radio Access and Optical Transport," in Proc. International Conference on Optical Network Design and Modeling (ONDM), 2023.
M. Devigili, D. Sequeira, C. Santos, M. Ruiz, B. Shariati, N. Costa, A. Napoli, J. Pedro, J. Fischer, and L. Velasco, "Experimental Validation of Deep Learning-based Models for Optical Time Domain Analysis," in Proc. Conference on Lasers and Electro-Optics (CLEO), 2023.
M. Ruiz, J. Comellas, and L. Velasco, "Man-in-the-Middle Attacks Through Re-Shaping I-Q Optical Constellations," in Proc. Optical Fiber Communication Conference (OFC), 2023.
Q. Wang, H. Shakespear-Miles, X. Chen, M. Ruiz, Z. Li, and L. Velasco, "On Real-time Optical Subcarrier Management in P2MP Networks with Mixed-strategy Gaming," in Proc. Optical Fiber Communication Conference (OFC), 2023.
M. Devigili, M. Ruiz, S. Barzegar, N. Costa, A. Napoli, J. Pedro, and L. Velasco, "Degradation Detection and Severity Estimation by Exploiting an Optical Time and Frequency Digital Twin," in Proc. Optical Fiber Communication Conference (OFC), 2023.
L. Velasco, P. Gonzalez, and M. Ruiz, "An Intelligent Optical Telemetry Architecture," in Proc. Optical Fiber Communication Conference (OFC), 2023.
P. Gonzalez, R. Casellas, J-J Pedreno-Manresa, A. Autenrieth, F. Boitier, B. Shariati, J. Fischer, M. Ruiz, J. Comellas, and L. Velasco, "Distributed Architecture Supporting Intelligent Optical Measurement Aggregation and Streaming Event Telemetry," in Proc. Optical Fiber Communication Conference (OFC), 2023.
L. Velasco, S. Barzegar, and M. Ruiz, "Is Intelligence the Answer to Deal with the 5 V's of Telemetry Data?," in Proc. Optical Fiber Communication Conference (OFC), 2023.
2022
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H. Shakespear-Miles, M. Ruiz, A. Napoli, and L. Velasco, "Multi-Agent-based Dynamic Optical Subcarrier Allocation for Near Real-Time P2MP Operation," in Proc. European Conference on Optical Communication (ECOC), 2022.
M. Ahmadian, M. Ruiz, M. B. On, S. K. Singh, J. Comellas, R. Proietti, S.J.B. Yoo, and L. Velasco, "Designing a Digital Twin for Quantum Key Distribution," in Proc. European Conference on Optical Communication (ECOC), 2022.
M. Devigili, M. Ruiz, N. Costa, A. Napoli, J. Pedro, and L. Velasco, "Dual Time and Frequency Domain Optical Layer Digital Twin," in Proc. European Conference on Optical Communication (ECOC), 2022.
L. Velasco, "The role of AI/ML in Intent Based Networking and Closed Loop Optical Networks," in Proc. Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit): Special Session 1 - Redesigning Transport Networks for 6G: From the cell site to the core, 2022.
S. Barzegar, M. Ruiz, and L. Velasco, "Distributed and Autonomous Flow Routing Based on Deep Reinforcement Learning," in Proc. International Conference on Photonics in Switching and Computing (PSC), 2022.
H. Shakespear-Miles, M. Ruiz, A. Napoli, and L. Velasco, "Dynamic Subcarrier Allocation for Multipoint-to-Point Optical Connectivity," in Proc. International Conference on Photonics in Switching and Computing (PSC), 2022.
M. Iqbal, L. Velasco, M. Ruiz, A. Napoli, J. Pedro, and N. Costa, "Quantum Bit Retransmission Using Universal Quantum Copying Machine," in Proc. International Conference on Optical Network Design and Modelling (ONDM), 2022.
M. Iqbal, M. Ruiz, N. Costa, A. Napoli, J. Pedro, and L. Velasco, "Dynamic and Efficient Point-to-Point and Point-to-Multipoint Communications by Slicing the Optical Constellation," in Proc. Optical Fiber Communication Conference (OFC), 2022.
2021
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D. Sequeira, M. Ruiz, N. Costa, A. Napoli, J. Pedro, and L. Velasco, "Lightweight Optical Constellation Modeling by Concatenating Artificial Neural Networks," in Proc. European Conference on Optical Communication (ECOC), 2021.
M. Ruiz, J. Morales, D. Sequeira, and L. Velasco, "An Autoencoder-Based Solution for IQ Constellation Analysis," in Proc. European Conference on Optical Communication (ECOC), 2021.
A. Wassington, L. Velasco, Ll. Gifre, and M. Ruiz, "Implementing a Machine Learning Function Orchestration," in Proc. European Conference on Optical Communication (ECOC), 2021.
D. Sequeira, M. Ruiz, A. Napoli, and L. Velasco, "Filtering Impact on High-Order Modulation Formats in Hybrid Filterless and Filtered Optical Metro Networks," in Proc. OSA Advanced Photonics Congress, 2021.
L. Velasco, "How Intent-based Networking Can be Embedded within Transport Optical Networks," invited tutorial in IEEE/OSA Optical Fiber Communication Conference (OFC), 2021.
S. Barzegar, M. Ruiz and L. Velasco, "Reliable and Accurate Autonomous Flow Operation based on Off-line Trained Reinforcement Learning," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2021.
F. Tabatabaeimehr, S. Barzegar, M. Ruiz and L. Velasco, "Combining Long-Short Term Memory and Reinforcement Learning for Improved Autonomous Network Operation," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2021.
B. Shariati, J.J. Pedreño, A. Dochhan, A. S. Muqaddas, R. Casellas, O. Gonzalez, L. Luque, B. Lent, J. López de Vergara, S. López-Buedo, F. Moreno, P. Pavon, L. Velasco, S. Patri, A. Giorgetti, F. Cugini, A. Sgambelluri, R. Nejabati, D. Simeonidou, R.-P. Braun, A. Autenrieth, J.-P. Elbers, J. Fischer, R. Freund, "A Latency-Aware Real-Time Video Surveillance Demo: Network Slicing for Improving Public Safety," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2021.
2020
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S. Barzegar, M. Ruiz and L. Velasco, "Reinforcement Learning -based Autonomous Multilayer Network Operation," in Proc. European Conference on Optical Communication (ECOC), 2020.
F. Tabatabaeimehr, M. Ruiz and L. Velasco, "Supporting Beyond 5G Applications by Coordinating AI-based Intent Operation. An Example for Multilayer Metro Networks," in Proc. European Conference on Optical Communication (ECOC), 2020.
Ll. Gifre, F. Boitier, C. Delezoide, M. Ruiz, M. Buffa, A. Morea, R. Casellas, L. Velasco, P. Layec, "Monitoring and Data Analytics-triggered reconfiguration in partially disaggregated optical networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2020.
M. Ruiz, M. Richart, A. Castro, and L. Velasco, "End-To-End KPI Analysis in Converged Fixed-Mobile Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2020.
Luis Velasco, Fatemehsadat Tabatabaeimehr, and Marc Ruiz, "Knowledge Management in Optical Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2020.
Luis Velasco and Marc Ruiz, "Optical Network Automation," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2020.
Sima Barzegar, Marc Ruiz, and Luis Velasco, "Soft-Failure Localization and Time-Dependent Degradation Detection for Network Diagnosis," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2020.
S. Barzegar, E. Virgillito, M. Ruiz, A. Ferrari, A. Napoli, V. Curri, and L. Velasco, "Soft-Failure Localization and Device Working Parameters Estimation in Disaggregated Scenarios," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2020.
Ll. Gifre, F. Boitier, C. Delezoide, M. Ruiz, M. Buffa, A. Morea, R. Casellas, L. Velasco, P. Layec, "Demonstration of Monitoring and Data Analytics-triggered reconfiguration in partially disaggregated optical networks," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2020.
2019
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M. Ruiz, F. Boitier, P. Layec, and L. Velasco, "Collective Self-Learning by Exchanging ML Models," in Proc. European Conference on Optical Communication (ECOC), 2019.
J. López de Vergara, M. Ruiz , Ll. Gifre, M. Ruiz, L. Vaquero, J. Zazo, S. López-Buedo, O. González de Dios, and L. Velasco, "Demonstration of 100 Gbit/s Active Measurements in Dynamically Provisioned Optical Paths," in Proc. European Conference on Optical Communication (ECOC), 2019.
A. P. Vela, M. Ruiz, and L. Velasco, "Visualization tools for enhancing failure localization (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
M. Ruiz, A. Sgambelluri, F. Cugini, and L. Velasco, "Smart filterless optical networks based on optical spectrum analysis (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
S. Barzegar, M. Ruiz, and L. Velasco, "Adaptation of the residual signal for filter failure detection in scenarios with multiple filter types (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
B. Shariati, M. Ruiz, J. Comellas, and L. Velasco, "Feature-based optical spectrum monitoring for failure detection and identification (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
F. Tabatabaeimehr, M. Ruiz, and L. Velasco, "Distributed and centralized options for self-learning (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
L. Velasco and M. Ruiz, "Monitoring and data analytics for optical networking (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
L. Gifre, M. Ruiz, and L. Velasco, "Interfaces for monitoring and data analytics systems (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
A. Bernal, M. Ruiz, and L. Velasco, "Generation and analysis of service-based traffic flows (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
L. Velasco, L. Gifre, and M. Ruiz, "Autonomic content delivery network service (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
A. P. Vela, M. Ruiz, and L. Velasco, "Autonomous operations in optical networks (Invited)," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2019.
L. Velasco, D. Rafique, "Fault Management Based on Machine Learning [Invited]," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2019.
M. Ruiz, F. Boitier, P. Layec, and L. Velasco, "Self-Learning Approaches for Real Optical Networks," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2019.
B. Shariati, M. Ruiz, L. Velasco, "Out-of-field Generic ML Training with In-field Specific Adaptation to Facilitate ML Deployments," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2019.
B. Shariati, F. Fresi, M. Ruiz, F. Cugini, and L. Velasco, "Optical Signal Tracking for Robust PAM4 Deployment in Filterless Metro Network Scenarios," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2019.
P. R. Esmerats, R. Casellas, Ll. Gifre, A. P. Vela, M. Ruiz, R. Martinez, and L. Velasco, "Autonomic NFV Network Services on Top of Disaggregated Optical Metro Networks," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2019.
2018
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A. P. Vela, Ll. Gifre, O. González de Dios, M. Ruiz, and L. Velasco, "CASTOR: A Monitoring and Data Analytics Framework to Help Operators Understand What is Going on in Their Networks," in Proc. European Conference on Optical Communication (ECOC), 2018.
R. Morro, F. Lucrezia, P. Gomes; R. Casellas, A. Giorgetti, L. Velasco, E. Riccardi, A. Chiadò Piat, A. Percelsi, J. Pedro, Ll. Gifre A. Sgambelluri, F. Risso, G. Marchetto, "Automated End to End Carrier Ethernet Provisioning over a Disaggregated WDM Metro Network with a Hierarchical SDN Control and Monitoring Platform," in Proc. European Conference on Optical Communication (ECOC), 2018.
B. Shariati, F. Boitier, M. Ruiz, P. Layec, and L. Velasco, "Autonomic Transmission Through pre-FEC BER Degradation Prediction Based on SOP Monitoring," in Proc. European Conference on Optical Communication (ECOC), 2018.
L. Velasco and M. Ruiz, "Flexible Fog Computing and Telecom Architecture for 5G Networks," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
A. P. Vela, B. Shariati, M. Ruiz, J. Comellas, and L. Velasco, "Soft Failure Localization in Elastic Optical Networks," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
A. P. Vela, M. Ruiz, and L. Velasco, "Examples of Machine Learning Algorithms for Optical Network Control and Management," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
A. P. Vela, M. Ruiz, and L. Velasco, "Anticipating BER Degradation in Optical Networks," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
Ll. Gifre, M. Ruiz, and L. Velasco, "CASTOR: A Monitoring and Data Analytics Architecture to Support Autonomic Domain and Slice Networking," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
F. Morales, M. Ruiz, and L. Velasco, "Metro-Flow Traffic Modelling for Cognitive Adaptation of Core Virtual Network Topologies," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
B. Shariati, D. Klonidis, J. Comellas, L. Velasco and I. Tomkos, "Spectrally and Spatially Flexible Optical Networks: Recent Developments and Findings," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
P. Festa, F. Morales, M. Ruiz and L. Velasco, "Performance Evaluation of the VNT Reconfiguration Algorithm based on Traffic Prediction," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
R. Casellas, R. Martínez, L. Velasco, R. Vilalta, P. Pavón, D. King, R. Muñoz, "Enabling Data Analytics and Machine Learning for 5G Services within Disaggregated Multi-Layer Transport Networks," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2018.
R. Casellas, S. Llana, Ll. Gifre, R. Vilalta, J-L. Izquierdo-Zaragoza, R. Muñoz, M. Ruiz, R. Martínez, and L. Velasco, "Metro-Haul: Supporting Autonomic NFV Services over Disaggregated Optical Networks," in Proc. European Conference on Networks and Communications (EuCNC), 2018.
B. Shariati, A. P. Vela, M. Ruiz, and L. Velasco, "Monitoring and Data Analytics: Analyzing the Optical Spectrum for Soft-Failure Detection and Identification [Invited]," in Proc. IEEE International Conference on Optical Network Design and Modeling (ONDM), 2018.
L. Velasco, B. Shariati, A. P. Vela, J. Comellas, and M. Ruiz, "Learning from the Optical Spectrum: Soft-Failure Identification and Localization [Invited]," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2018.
B. Shariati, M. Ruiz, A. Sgambelluri, F. Cugini, and L. Velasco, "Real-time Spectrum Surveillance in Filterless Optical Networks," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2018.
A. P. Vela, M. Ruiz, and L. Velasco, "Applying Data Visualization for Failure Localization," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2018.
Ll. Gifre, J-L. Izquierdo-Zaragoza, B. Shariati, and L. Velasco, "Experimental Demonstration of Active and Passive Optical Networks Telemetry," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2018.
R. Proietti, X. Chen, A. Castro, G. Liu, H. Lu, K. Zhang, J. Guo, Z. Zhu, L. Velasco, and S. J. Ben Yoo, "Experimental Demonstration of Cognitive Provisioning and Alien Wavelength Monitoring in Multi-domain EON," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2018.
L. Velasco, Ll. Gifre, and J-L. Izquierdo-Zaragoza, "Toward Multilayer Disaggregated Node Telemetry and Local Decision Making," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2018.
A. Sgambelluri, J-L. Izquierdo-Zaragoza, A. Giorgetti, Ll. Gifre, L. Velasco, F. Paolucci, N. Sambo, F. Fresi, P. Castoldi, A. Chiado, R. Morro, E. Riccardi, A. D'Errico, and F. Cugini, "Fully Disaggregated ROADM White Box with NETCONF/YANG control, Telemetry, and Machine Learning-based Monitoring," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2018.
L. Velasco, Ll. Gifre, J-L. Izquierdo-Zaragoza, G. Julián, and J. Lopez de Vergara, "CASTOR: An Architecture to Bring Cognition to Transport Networks," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2018.
2017
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F. Morales, Ll. Gifre, F. Paolucci, M. Ruiz, F. Cugini, L. Velasco and P. Castoldi, "Experimental Assessment of a Flow Controller for Dynamic Metro-Core Predictive Traffic Models Estimation," in Proc. European Conference on Optical Communication (ECOC), 2017.
F. Cugini, M. Ruiz, T. Foggi, L. Velasco, and P. Castoldi, "Partial Signal Overlap with Cancellation-based Detection for Spectrally-efficient EONs," in Proc. European Conference on Optical Communication (ECOC), 2017.
A. P. Vela, M. Ruiz, and L. Velasco, "Bringing data analytics to the network nodes for efficient traffic anomalies detection," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2017.
A. P. Vela, M. Ruiz, F. Cugini, and L. Velasco, "Combining machine learning and optimization for early pre-FEC BER degradation to meet committed QoS," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2017.
F. Morales, M. Ruiz, and L. Velasco, "Data analytics based origin-destination core traffic modelling," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2017.
F. Morales, P. Festa, M. Ruiz, and L. Velasco, "Adapting the virtual network topology to near future traffic," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2017.
A. Asensio, M. Ruiz, and L. Velasco, "Dynamic virtual network connectivity for C-RAN backhauling," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2017.
L. Gifre, M. Ruiz, and L. Velasco, "Experimental assessment of big data-backed video distribution in the telecom cloud," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2017.
L. Velasco, L. Gifre, and A. Castro, "Brokered orchestration for end-to-end service provisioning across heterogeneous multi-operator networks," invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2017.
L. Velasco, Ll. Gifre, F. Paolucci, and F. Cugini, "First Experimental Demonstration of Autonomic Slice Networking," post-deadline paper in IEEE/OSA Optical Fiber Communication Conference (OFC), 2017.
A. P. Vela, M. Ruiz, F. Fresi, N. Sambo, F. Cugini, L Velasco, and P. Castoldi, "Early Pre-FEC BER Degradation Detection to Meet Committed QoS," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2017.
F. Morales, M. Ruiz, and L. Velasco, "Core VNT Adaptation Based on the Aggregated Metro-Flow Traffic Model Prediction," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2017.
Ll. Gifre, A. P. Vela, M. Ruiz, J. López de Vergara, and L. Velasco, "Experimental Assessment of Node and Control Architectures to Support the Observe-Analyze-Act Loop," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2017.
Ll. Gifre, M. Ruiz, A. Castro, R. Proietti, S.J. Ben Yoo, and L. Velasco, "Experimental Assessment of Degradation-triggered Reconfiguration in Optically Interconnected Cloud-RAN," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2017.
F. Cugini, N. Sambo, T. Foggi, M. Ruiz, L. Velasco, and P. Castoldi, "Signal Overlap for Efficient 1+1 Protection in Elastic Optical Networks (EONs)," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2017.
2016
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A. P. Vela, M. Ruiz, and L. Velasco, "Reducing Virtual Network Reconfiguration and Traffic Losses under Multiple Traffic Anomalies," in Proc. Asia Communications and Photonics (ACP) Conference, 2016.
A. P. Vela, A. Via, M. Ruiz, and L. Velasco, "Bringing Data Analytics to the Network Nodes," in Proc. European Conference on Optical Communication (ECOC), 2016.
B. Shariati, D. Klonidis, D. Siracusa, F. Pederzolli, J. M. Rivas-Moscoso, L. Velasco, and I. Tomkos, "Impact of Traffic Profile on the Performance of Spatial Superchannel Switching in SDM Networks," in Proc. European Conference on Optical Communication (ECOC), 2016.
M. Ruiz, F. Fresi, A. P. Vela, G. Meloni, N. Sambo, F. Cugini, L. Poti, L. Velasco, and P. Castoldi, "Service-triggered failure identification/localization through monitoring of multiple parameters," in Proc. European Conference on Optical Communication (ECOC), 2016.
D. King, D. Hutchison, N. Georgalas, A. Lord, L. Velasco, and A. Farrel, "Network-based telemetry to facilitate the programmable management plane for optical transport infrastructure," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2016.
A. P. Vela, A. Via, F. Morales, M. Ruiz, and L. Velasco, "Traffic generation for telecom cloud -based simulation," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2016.
F. Morales, M. Ruiz, and L. Velasco, "Incremental capacity planning in optical transport networks based on periodic performance metrics," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2016.
Ll. Gifre, M. Ruiz, and L. Velasco, "Modulation format-aware restoration and re-optimization in flexgrid optical networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2016.
A. Asensio, M. Ruiz, and L. Velasco, "Connectivity requirements for cloud-based services," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2016.
L. Gifre and L. Velasco, "Performance evaluation of video distribution in the telecom cloud," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2016.
Ll. Gifre, F. Morales, L Velasco, and M. Ruiz, "Big Data Analytics for the Virtual Network Topology Reconfiguration Use Case," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2016.
A. Asensio, M. Ruiz, and L. Velasco, "Requirements to Support Cloud, Video and 5G Services on the Telecom Cloud," invited paper in European Conference on Networks and Optical Communications (NOC), 2016.
I. Tomkos, J.M. Rivas, D. Klonidis, B. Shariati, L. Velasco, S. Ben Ezra, P. Khodashenas, F. Jimenez, J. Comellas, and D. Marom, "Options for Cost-effective Capacity Upgrades in Backbone Optical Networks," invited paper in European Conference on Networks and Optical Communications (NOC), 2016.
A. Asensio, P. Saengudomlert, M. Ruiz, and L. Velasco, "Study of the Centralization Level of Optical Network-Supported Cloud RAN," in Proc. IEEE International Conference on Optical Network Design and Modeling (ONDM), 2016.
A. Asensio, M. Ruiz, and L. Velasco, "Bitrate Guarantees Strategies for Customer Virtual Networks Dynamic Reconfiguration," in Proc. IEEE International Conference on Design of Reliable Communication Networks (DRCN), 2016.
L. Velasco and M. Ruiz, "Design and Re-optimization algorithms for Elastic Optical Networks," invited tutorial in IEEE/OSA Optical Fiber Communication Conference (OFC), 2016.
F. Morales, M. Ruiz, and L. Velasco, "Virtual Network Topology Reconfiguration based on Big Data Analytics for Traffic Prediction," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2016.
Ll. Gifre, L. M. Contreras, V. Lopez, and L. Velasco, "Big Data Analytics in Support of Virtual Network Topology Adaptability," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2016.
A. Castro, A. P. Vela, Ll. Gifre, R. Proietti, C. Cen, Y. Jie, X. Chen, Z. Cao, Z. Zhu, V. Mishra, L. Velasco, and S.J.B. Yoo, "Experimental Demonstration of Heterogeneous Cross Stratum Broker for Scientific Applications," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2016.
B. Shariati, P. Khodashenas, J. Rivas, S. Ben-Ezra, D. Klonidis, F. Jimenez, L. Velasco, and I. Tomkos, "Investigation of Mid-term Network Migration Scenarios Comparing Multi-Band and Multi-Fiber Deployments," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2016.
B. Shariati, P. Khodashenas, J. Rivas, S. Ben-Ezra, D. Klonidis, F. Jimenez, L. Velasco, and I. Tomkos, "Evaluation of the Impact of Different SDM Switching Strategies in a Network Planning Scenario," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2016.
2015
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O. Gonzalez de Dios, R. Casellas, F. Paolucci, A. Napoli, Ll. Gifre, S. Annoni, S. Belotti, U. Feiste, D. Rafique, M. Bohn, S. Bigo, A. Dupas, E. Dutisseuil, F. Fresi, B. Guo, E. Hugues, P. Layec, V. López, G. Meloni, S. Misto, R. Morro, T. Rahman, G. Khanna, R. Martinez, R. Vilalta, F. Cugini, L. Potí, A. D'Errico, R. Muñoz, Y. Shu, S. Yan, Y. Yan, G. Zervas, R. Nejabati, D. Simeonidou, L. Velasco, and J. Fernández-Palacios, "First Demonstration of Multi-vendor and Multi-domain EON with S-BVT and Control Interoperability over Pan-European Testbed," Post Deadline Paper in European Conference on Optical Communication (ECOC), 2015.
A. Asensio, M. Ruiz, L.M. Contreras, L. Velasco, and G. Junyent, "Dynamic Customer Virtual Network Reconfiguration with QoS Constraints and Bandwidth Guarantees," in Proc. European Conference on Optical Communication (ECOC), 2015.
Ll. Gifre, R. Martínez, R. Casellas, R. Vilalta, R. Muñoz, and L. Velasco, "Modulation Format-aware Re-Optimization in Flexgrid Optical Networks: Concept and Experimental Assessment," in Proc. European Conference on Optical Communication (ECOC), 2015.
A. Castro, Ll. Gifre, C. Chen, J. Yin, Z. Zhu, L. Velasco, S. J. B. Yoo, "Experimental Demonstration of Brokered Orchestration for end-to-end Service Provisioning and Interoperability across Heterogeneous Multi-Operator (Multi-AS) Optical Networks," in Proc. European Conference on Optical Communication (ECOC), 2015.
L. Velasco and Ll. Gifre, "iONE: A Workflow-Oriented ABNO Implementation," in Photonics in Switching (PS) Conference, 2015.
A. Asensio, M. Ruiz, and L. Velasco, "Routing and Scheduled Spectrum Allocation for Transfer-based Datacenter Connections," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2015.
Ll. Gifre, M. Ruiz, A. Asensio, and L. Velasco, "Comparing Single Layer and Multilayer Approaches to Serve Multicast Requests on Flexgrid Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2015.
J. Comellas, A. Asensio, M. Ruiz, G. Junyent, and L. Velasco, "Using spectrum management techniques to differentiate services in elastic optical networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2015.
M. Klinkowski, M. Pioro, M. Zotkiewicz, K. Walkowiak, A. Tomaszewski, M. Ruiz, and L. Velasco, "Spectrum allocation problem in elastic optical networks - a branch-and-price approach," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2015.
Ll. Gifre, N. Navarro, A. Asensio, M. Ruiz, and L. Velasco, "iONE: An Environment for Experimentally Assessing In-Operation Network Planning Algorithms," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2015.
J. Barrera, M. Ruiz, L. Velasco, "Orchestrating Virtual Machine Migrations in Telecom Clouds," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2015.
A. Asensio, L. M. Contreras, M. Ruiz, V. Lopez, L. Velasco, "Scalability of Telecom Cloud Architectures for Live-TV Distribution," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2015.
M. Dallaglio, A. Giorgetti, N. Sambo, L. Velasco, P. Castoldi, "Impact of Multi-wavelength sliceable transponders in Elastic Optical Networks," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2015.
2014
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Ll. Gifre, F. Paolucci, J. Marhuenda, A. Aguado, L. Velasco, F. Cugini, P. Castoldi, O. Gonzalez de Dios, L.M. Contreras, and V. López, "Experimental Assessment of Inter-datacenter Multicast Connectivity for Ethernet services in Flexgrid Networks," in Proc. European Conference on Optical Communication (ECOC), 2014.
R. Martínez, Ll. Gifre, R. Casellas, L. Velasco, R. Muñoz, R. Vilalta, "Experimental Validation of Active Frontend - Backend Stateful PCE Operations in Flexgrid Optical Network Re-optimization," in Proc. European Conference on Optical Communication (ECOC), 2014.
A. Castro, F. Cugini, L. Velasco, P. Castoldi, "On the Benefits of Differentiating the Filter Configurations in Flexi-grid Optical Networks," in Proc. European Conference on Optical Communication (ECOC), 2014.
M. Ruiz and L. Velasco, "Vulnerability Modelling for Periodical Flexgrid Network Planning," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2014.
M. Ruiz, A. Asensio, and L. Velasco, "Minimizing Energy Costs in Federated Datacenters Under Uncertain Green Energy Availability," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2014.
A. Asensio, Ll. Gifre, M. Ruiz, and L. Velasco, "Carrier SDN for Flexgrid-based Inter-Datacenter Connectivity," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2014.
Ll. Gifre, A. Castro, M. Ruiz, N. Navarro, and L. Velasco, "An In-Operation Planning Tool Architecture for Flexgrid Network Re-Optimization," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2014.
M. Klinkowski, M. Pióro, M. Zotkiewicz, M. Ruiz, and L. Velasco, "Valid inequalities for the routing and spectrum allocation problem in elastic optical networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2014.
A. Asensio, L. Velasco, M. Ruiz, and G. Junyent, "Carrier SDN to Control Flexgrid-based Inter-Datacenter Connectivity," in Proc. IEEE International Conference on Optical Network Design and Modeling (ONDM), 2014.
L. Velasco, F. Paolucci, Ll. Gifre, A. Aguado, F. Cugini, P. Castoldi, and V. López, "First Experimental Demonstration of ABNO-driven In-Operation Flexgrid Network Re-Optimization," post-deadline paper in IEEE/OSA Optical Fiber Communication Conference (OFC), 2014.
L. Velasco, O. González de Dios, V. López, J. Fernández-Palacios, and G. Junyent, "Finding an Objective Cost for Sliceable Flexgrid Transponders," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2014.
M. Ruiz, M. Zotkiewicz, A. Castro, M. Klinkowski, L. Velasco, and M. Pioro, "After Failure Repair Optimization in Dynamic Flexgrid Optical Networks," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2014.
Ll. Gifre, L. Velasco, N. Navarro, and G. Junyent, "Experimental Assessment of a High Performance Back-end PCE for Flexgrid Optical Network Re-optimization," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2014.
F. Paolucci, F. Fresi, A. Castro, L. Velasco, F. Cugini, N. Sambo, A. Giorgetti, L. Poti, and P. Castoldi, "Filter Optimization in SDN-based Flexgrid Networks," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2014.
2013
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L. Velasco, A. Asensio, J.Ll. Berral, A. Castro, V. López, "Towards a Carrier SDN: An example for Elastic Inter-Datacenter Connectivity," in Proc. European Conference on Optical Communication (ECOC), 2013.
L. Velasco, A. Castro, M. Ruiz, "Solving Routing and Spectrum Allocation Related Optimization Problems," Invited tutorial in European Conference on Optical Communication (ECOC), 2013.
A. Castro, F. Paolucci, F. Fresi, M. Imran, B. Bhowmik, G. Berrettini, G. Meloni, A. Giorgetti, F. Cugini, L. Velasco, L. Poti, and P. Castoldi, "Experimental Demonstration of an Active Stateful PCE Performing Elastic Operations and Hitless Defragmentation," in Proc. European Conference on Optical Communication (ECOC), 2013.
Ll. Gifre, L. Velasco, and N. Navarro, "Architecture of a Specialized Back-end High Performance Computing-based PCE for Flexgrid Networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2013.
M. Ruiz, M. Zotkiewicz, L. Velasco, J. Comellas, "A Column Generation Approach for Large-Scale RSA-based Network Planning," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2013.
M. Zotkiewicz, M. Pióro, M. Ruiz, M. Klinkowski, L. Velasco, "Optimization models for flexgrid elastic optical networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2013.
A. Asensio, A. Castro, L. Velasco, J. Comellas, "An Elastic Netwoks OMNET++ -based Simulator," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2013.
A. Castro, L. Velasco, J. Comellas, G. Junyent, "Global Concurrent Optimization: Advantages and Opportunities in Flexgrid-based networks," in Proc. IEEE International Conference on Transparent Optical Networks (ICTON), 2013.
L. Velasco, M. Ruiz, A. Castro, and J. Comellas, "Extending the Flexgrid Optical Core towards the Edges," Invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2013.
A. Asensio, M. Klinkowski, M. Ruiz, V. López, A. Castro, L. Velasco, J. Comellas, "Impact of Aggregation Level on the Performance of Dynamic Lightpath Adaptation under Time-Varying Traffic," in Proc. IEEE International Conference on Optical Network Design and Modeling (ONDM), 2013.
P. Wright, A. Lord, L. Velasco, "The Network Capacity Benefits of Flexgrid," in Proc. IEEE International Conference on Optical Network Design and Modeling (ONDM), 2013.
A. Castro, L. Velasco, J. Comellas, G. Junyent, "Dynamic Restoration in Multi-layer IP/MPLS-over-Flexgrid Networks," in Proc. IEEE International Conference on Design of Reliable Communication Networks (DRCN), 2013.
L. Velasco, P. Wright, A. Lord, G. Junyent, "How National IP/MPLS Networks can benefit from Flexgrid Optical Technology?," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2013.
M. Ruiz, L. Velasco, J. Comellas, G. Junyent, "A Traffic Intensity Model for Flexgrid Optical Network Planning under Dynamic Traffic Operation," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2013.
R. Martínez, A. Castro, R. Casellas, R. Muñoz, L. Velasco, R. Vilalta, J. Comellas, "Experimental Validation of Dynamic Restoration in GMPLS-controlled Multi-layer Networks using PCE-based Global Concurrent Optimization," in Proc. IEEE/OSA Optical Fiber Communication Conference (OFC), 2013.
2012
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A. Castro, L. Velasco, M. Ruiz, J. Comellas, "Single-path Provisioning with Multi-path Recovery in Flexgrid Optical Networks," International Workshop on Reliable Networks Design and Modeling (RNDM), 2012.
L. Velasco, P. Wright, A. Lord, G. Junyent, "Designing National IP/MPLS Networks with Flexgrid Optical Technology," European Conference on Optical Communication (ECOC), 2012.
A. Castro, R. Martínez, L. Velasco, R. Casellas, R. Muñoz, J. Comellas, "Experimental Evaluation of a Dynamic PCE-Based Regenerator-Efficient IA-RWA Algorithm in Translucent WSON," European Conference on Optical Communication (ECOC), 2012.
C. Cavdar, M. Ruiz, P. Monti, L. Velasco, and L. Wosinska, "Design of Green Optical Networks with Signal Quality Guarantee," IEEE International Conference on Communications (ICC), 2012.
O. Pedrola, L. Velasco, A. Castro, J. Fernández-Palacios, D. Careglio, G. Junyent, "CAPEX study for grid dependent multi-layer IP/MPLS-over-EON using relative BV-WSS costs," IEEE/OSA Optical Fiber Communication Conference (OFC), 2012.
L. Velasco, M. Klinkowski, M. Ruiz, V. López, G. Junyent, "Elastic Spectrum Allocation for Variable Traffic in Flexible-Grid Optical Networks," IEEE/OSA Optical Fiber Communication Conference (OFC), 2012.
A. Castro, M. Ruiz, L. Velasco, G. Junyent, and J. Comellas, "Path-based Recovery in Flexgrid Optical Networks," IEEE International Conference on Transparent Optical Networks (ICTON), 2012.
L. Velasco, M. Ruiz, A. Castro, O. Pedrola, M. Klinkowski, D. Careglio, and J. Comellas, "On the Performance of Flexgrid-based Optical Networks," Invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2012.
2011
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M. Ruiz, L. Velasco, J. Comellas, G. Junyent, "Optical Network Net Present Value Optimization in Shared Path Protection Environments," IEEE International Conference on Design of Reliable Communication Networks (DRCN), 2011.
L. Velasco, M. Ruiz, J. Comellas, G. Junyent, "NORMA: Network Operator Revenues Maximization," Invited paper in IEEE International Conference on Transparent Optical Networks (ICTON), 2011.
M. Ruiz, L. Velasco, G. Junyent, J. Comellas, "A GRASP-based heuristic to design the GMPLS control plane network topology with resilience guarantees," IEEE International Conference on Transparent Optical Networks (ICTON), 2011.
2010
(4)
F. Agraz, J. Perelló, M. Angelou, S. Azodolmolky, L. Velasco, S. Spadaro, P. Kokkinos, E. Varvarigos, I. Tomkos, "Experimental Evaluation of Path Restoration for a Centralised Impairment-Aware GMPLS-Controlled All-Optical Network," European Conference on Optical Communication (ECOC), 2010.
F. Agraz, S. Azodolmolky, M. Angelou, J. Perelló, L. Velasco, S. Spadaro, A. Francescon, C. V. Saradhi, Y. Pointurier, P. Kokkinos, E. Varvarigos, M. Gunkel, I. Tomkos, "Experimental Demonstration of Centralized and Distributed Impairment-Aware Control Plane Schemes for Dynamic Transparent Optical Networks," IEEE/OSA Optical Fiber Communication Conference (OFC), 2010.
L. Velasco, A. Jirattigalachote, P. Monti, L. Wosinska, S. Spadaro, and G. Junyent, "Probabilistic-Based Approach for Fast Impairments-Aware RWA in All-Optical Networks," IEEE/OSA Optical Fiber Communication Conference (OFC), 2010.
R. Martínez, R. Casellas, L. Velasco, F. Agraz, R. Muñoz, and S. Spadaro, "Experimental validation of end-to-end GMPLS-enabled restoration in multi-domain transparent WSON," IEEE/OSA Optical Fiber Communication Conference (OFC), 2010.
2009
(3)
J. Perelló, L. Velasco, F. Agraz, S. Spadaro, J. Comellas and G. Junyent, "Demonstration of GMPLS-controlled Integrated IP/WDM Routing over a Grooming-capable ASON/GMPLS Network Test-bed," European Conference on Optical Communication (ECOC), 2009.
F. Agraz, L. Velasco, J. Perelló, M. Ruiz, S. Spadaro, G. Junyent, and J. Comellas, "An Experimental GMPLS-Controlled Network Test-bed Enabling Sub-Wavelength Connection Provisioning," IEEE International Conference on Transparent Optical Networks (ICTON), 2009.
S. Spadaro, L. Velasco, F. Agraz, J. Perelló, J. Comellas, and G. Junyent, "Some open issues in multi-domain/multi-operator ASON/GMPLS networks," IEEE International Conference on Transparent Optical Networks (ICTON), 2009.
2008
(5)
L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Wavelength Selective Switches time requirements for shared path protection in ASON/GMPLS rings," European Conference on Optical Communication (ECOC), 2008.
L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Capacity and availability comparison of OMS protection schemes in ASON/GMPLS mesh networks," IEEE Optical Network Design and Modelling (ONDM), 189-193, 2008.
L. Velasco, R. Romeral, F. Agraz, S. Spadaro, J. Comellas, G. Junyent, and D. Larrabeiti, "On the design of MPLS-ASON/GMPLS Interconnection Mechanisms," IEEE Optical Network Design and Modelling (ONDM), 206-211, 2008.
L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Real-time OCh-OMS protection scheme selection," IEEE International Conference on Transparent Optical Networks (ICTON), 2008.
J. Perelló, L. Velasco, F. Agraz, S. Spadaro, G. Junyent, and J. Comellas, "A Comparison of In-Fiber and Out-Of-Fiber GMPLS-based Control Plane Configurations: Benefits, Drawbacks and Solutions," IEEE International Conference on Transparent Optical Networks (ICTON), 2008.
2007
(4)
L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Link Management Protocol extensions for OMS protection in GMPLS-based optical ring networks," European Conference on Optical Communication (ECOC), 247-248, 2007.
L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "ROADM design for OMS-DPRing in GMPLS based optical networks," IEEE International Conference on Design of Reliable Communication Networks (DRCN), 1-7, 2007.
L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Experimental evaluation of OMS protection in GMPLS-based optical networks," IEEE International Conference on Transparent Optical Networks (ICTON), 193-196, 2007.
S. Spadaro, J. Perelló, E. Escalona, L. Velasco, F. Agraz, J. Comellas, and G. Junyent, "The CARISMA ASON/GMPLS Network: Overview and Open Issues," IEEE International Conference on Transparent Optical Networks (ICTON), 18-21, 2007.
2006
(1)
L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Failure aware diverse routing: a novel algorithm to improve availability in ASON/GMPLS networks," IEEE International Conference on Transparent Optical Networks (ICTON), 195-198, 2006.