Dr. Luis Velasco - Research Publications

Journal Papers

2024	(5)
	H. Shakespear-Miles, Q. Lin, S. Barzegar, M. Ruiz, X. Chen, L. Velasco, "Centralized and Distributed Approaches to Control Optical Point-to-Multipoint Systems Near-Real-Time," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 16, pp. 565-576, 2024.
	S. Wang, M. Ruiz, and L. Velasco, "Context-based e2e Autonomous Operation in B5G Networks," MDPI Sensors, vol. 24, pp. 1-25, 2024.
	M. Devigili, M. Ruiz, N. Costa, C. Castro, A. Napoli, J. Pedro, and L. Velasco, "Applications of the OCATA Time Domain Digital Twin: from QoT Estimation to Failure Management," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 16, pp. 221-232, 2024.
	S. Barzegar, M. Ruiz, and L. Velasco, "Autonomous Flow Routing for Near Real-Time Quality of Service Assurance," IEEE Transactions on Network and Service Management (TNSM), vol. 21, pp. 2504-2514, 2024.
	M. Ahmadian, M. Ruiz, J. Comellas, and L. Velasco, "DARIUS: A Digital Twin to Improve the Performance of Quantum Key Distribution," IEEE/OPTICA Journal of Lightwave Technology (JLT), vol. 42, pp. 1356-1367, 2024.

2023	(7)
	L. Velasco, F. Cugini, R. Casellas, M. Nakagawa, G. Wellbrock, and X. Chen, "Introduction to the JOCN Special Issue on Advances in Multi-Band Optical Networks," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 15, 2023.
	M. Iqbal, L. Velasco, N. Costa, A. Napoli, J. Pedro, and M. Ruiz, "Investigating Imperfect Cloning for Extending Quantum Communication Capabilities," MDPI Sensors, vol. 23, pp. 7891, 2023.
	L. Velasco, P. González, and M. Ruiz, "Distributed Intelligence for Pervasive Optical Network Telemetry," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 15, pp. 676-686, 2023.
	M. Ruiz, J. A. Hernandez, M. Quagliotti, E. Hugues-Salas, E. Riccardi, A. Rafel, L. Velasco, and O. Gonzalez De Dios, "Network Traffic Analysis under Emerging Beyond-5G Scenarios for Multi-Band Optical Technology Adoption," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 15, pp. F36-F47, 2023.
	M. Iqbal, L. Velasco, M. Ruiz, N. Costa, A. Napoli, J. Pedro, and J. Comellas, "Supporting Heterogenous Traffic on top of Point-to-Multipoint Light-Trees," MDPI Sensors, vol. 23. pp. 2500, 2023.
	Ahmad El Sayed, Marc Ruiz, Hassan Harb, and Luis Velasco, "Deep learning-based Adaptive Compression and Anomaly Detection for Smart B5G Use Cases Operation," MDPI Sensors, vol. 23, pp. 1043, 2023.
	D. Sequeira, M. Ruiz, N. Costa, A. Napoli, J. Pedro, and L. Velasco, "OCATA: A Deep Learning-based Digital Twin for the Optical Time Domain," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 15, pp. 87-97, 2023.
2022	(6)
	D. Sequeira, M. Ruiz, N. Costa, A. Napoli, J. Pedro, and L. Velasco, "Accurate Low Complex Modulation Format and Symbol Rate Identification for Autonomous Lightpath Operation," MDPI Sensors, vol. 22, pp. 9251, 2022.
	M. Ruiz, D. Sequeira, and L. Velasco, "Deep Learning -based Real-Time Analysis of Lightpath Optical Constellations [Invited]," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 14, pp. C70-C81, 2022.
	M. Ahmadian, M. Ruiz, J. Comellas, and L. Velasco, "Cost-Effective ML-Powered Polarization-Encoded Quantum Key Distribution," IEEE/OPTICA Journal of Lightwave Technology (JLT), vol. 40, pp. 4119-4128, 2022.
	M. Iqbal, L. Velasco, N. Costa, A. Napoli, J. Pedro, and M. Ruiz, "LPsec: A Fast and Secure Cryptographic System for Optical Connections," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 14, pp. 278-288, 2022.
	L. Velasco, S. Barzegar, F. Tabatabaeimehr, and M. Ruiz, "Intent-Based Networking for Optical Networks [Invited Tutorial]," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 14, pp. A11-A22, 2022.
	B. Shariati, L. Velasco, J.-J. Pedreno-Manresa, A. Dochhan, R. Casellas, A. S. Muqaddas, O. González De Dios, L. Canto, B. Lent, J.E. López De Vergara, S. López-Buedo, F. Moreno, P. Pavón, M. Ruiz, S. Patri, A. Giorgetti, F. Cugini, A. Sgambelluri, R. Nejabati, D. Simeonidou, R.-P, Braun, A. Autenrieth, J.-P. Elbers, J. K. Fischer, R. Freund, "Demonstration of Latency-Aware 5G Network Slicing over Edge Computing Enabled Optical Metro Network," IEEE/OPTICA Journal of Optical Communications and Networking (JOCN), vol. 14, pp. A81-A90, 2022.
2021	(8)
	S. Barzegar, M. Ruiz, and L. Velasco, "Packet Flow Capacity Autonomous Operation based on Reinforcement Learning," MDPI Sensors, vol. 21, pp. 8306, 2021.
	L. Velasco, M. Signorelli, O. González de Dios, C. Papagianni, R. Bifulco, J.J. Vegas Olmos, S. Pryor, G. Carrozzo, J. Schulz-Zander, M. Bennis, R. Martinez, F. Cugini, C. Salvadori, V. Lefebvre, L. Valcarenghi, and M. Ruiz, "End-to-End Intent-Based Networking," IEEE Communications Magazine, vol. 59, pp. 106-112, 2021.
	L. Velasco, P. Layec, F. Paolucci, and N. Yoshikane, "Introduction to the JOCN Special Issue on Advanced Monitoring and Telemetry in Optical Networks," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 13, pp. AMTON1-AMTON2, 2021.
	F. Tabatabaeimehr, M. Ruiz, C.-Y. Liu, X. Chen, R. Proietti, S. J. B. Yoo, and L. Velasco, "Cooperative Learning for Disaggregated Delay Modeling in MultiDomain Networks," IEEE Transactions on Network and Service Management (TNSM), vol. 18, pp. 3633-3646, 2021.
	S. Barzegar, M. Ruiz, A. Sgambelluri, F. Cugini, A. Napoli, and L. Velasco, "Soft-Failure Detection, Localization, Identification, and Severity Prediction by Estimating QoT Model Input Parameters," IEEE Transactions on Network and Service Management (TNSM), vol. 18, pp. 2627-2640, 2021.
	L. Velasco, S. Barzegar, D. Sequeira, A. Ferrari, N. Costa, V. Curri, J. Pedro, A. Napoli, and M. Ruiz, "Autonomous and Energy Efficient Lightpath Operation based on Digital Subcarrier Multiplexing," IEEE Journal on Selected Areas in Communications (JSAC), vol. 39, pp. 2864-2877, 2021.
	Y. Pointurier, J. Pesic, C. Rottondi, and L. Velasco, "Introduction to the JOCN Special Issue on Machine Learning Applied to QoT Estimation in Optical Networks," IEEE/OSA Journal of Optical Communications and Networking, vol. 13, pp. MLAQ1-MLAQ2, 2021.
	A. Al Sayyid, H. Harb, M. Ruiz and L. Velasco, "ZIZO: A Zoom-In Zoom-Out Mechanism for Minimizing Redundancy and Saving Energy in Wireless Sensor Networks," IEEE Sensors Journal, vol. 21, pp. 3452-3462, 2021.
2020	(6)
	M. Ruiz, F. Boitier, B. Shariati, P. Layec, and L. Velasco, "Predictive Autonomic Transmission for Low-Cost Low-Margin Metro Optical Networks," Springer Photonic Network Communications, vol. 40, pp. 68-81, 2020.
	B. Shariati, M. Ruiz, F. Fresi, A. Sgambelluri, F. Cugini, and L. Velasco, "Real-time Optical Spectrum Monitoring in Filterless Optical Metro Networks," Springer Photonic Network Communications, vol. 40, pp. 1-13, 2020.
	L. Velasco and M. Ruiz, "Supporting Time-Sensitive and Best-Effort Traffic on a Common Metro Infrastructure," IEEE Communications Letters, vol. 24, pp. 1664-1668, 2020.
	M. Ruiz, M. Ruiz, F. Tabatabaeimehr, Ll. Gifre, S. López-Buedo, J. López de Vergara, O. González, and L. Velasco, "Modeling and Assessing Connectivity Services Performance in a Sandbox Domain," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 38, pp. 3180-3189, 2020.
	A. Bernal, M. Richart, M. Ruiz, A. Castro, and L. Velasco, "Near Real-Time Estimation of End-to-End Performance in Converged Fixed-Mobile Networks," Elsevier Computer Communications, vol. 150, pp. 393-404, 2020.
	M. Ruiz, F. Tabatabaeimehr, and L. Velasco, "Knowledge Management in Optical Networks: Architecture, Methods and Use Cases [Invited]," IEEE/OSA Journal of Optical Communications and Networking, vol. 12, pp. A70-A81, 2020.
2019	(6)
	L. Velasco, A. Chiadò Piat, O. González, A. Lord, A. Napoli, P. Layec, D. Rafique, A. D'Errico, D. King, M. Ruiz, F. Cugini, and R. Casellas, "Monitoring and Data Analytics for Optical Networking: Benefits, Architectures, and Use Cases," IEEE Network Magazine, vol. 33, pp. 100-108, 2019.
	L. Velasco, B. Shariati, F. Boitier, P. Layec, and M. Ruiz, "A Learning Life-Cycle to Speed-up Autonomic Optical Transmission and Networking Adoption," IEEE/OSA Journal of Optical Communications and Networking, vol. 11, pp. 226-237, 2019.
	D. King, A. Farrel, Emiko Nishida-King, R. Casellas, L. Velasco, R. Nejabati, A. Lord, "The Dichotomy of Distributed and Centralized Control: METRO-HAUL, when control planes collide for 5G networks," Elsevier Optical Switching and Networking, vol. 33, pp. 49-55, 2019.
	L. Velasco, R. Casellas, S. Llana, Ll. Gifre, R. Martinez, R. Vilalta, R. Muñoz, and M. Ruiz, "A Control and Management Architecture Supporting Autonomic NFV Services," Springer Photonic Network Communications, vol. 37, pp. 24-37, 2019.
	R. Proietti, X. Chen, K. Zhang, G. Liu, M. Shamsabardeh, A. Castro, L. Velasco, Z. Zhu, and S. J. Ben Yoo, "Experimental Demonstration of Machine Learning-aided QoT Estimation in Multi-domain Elastic Optical Networks with Alien Wavelengths," (Invited - Top Scored paper) IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 11, pp. A1-A10, 2019.
	B. Shariati, M. Ruiz, J. Comellas, and L. Velasco, "Learning from the Optical Spectrum: Failure Detection and Identification [Invited]," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 37, pp. 433-440, 2019.
2018	(6)
	M. Ruiz, F. Coltraro, and L. Velasco, "CURSA-SQ: A Methodology for Service-Centric Traffic Flow Analysis," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 10, pp. 773-784, 2018.
	D. Rafique and L. Velasco, "Machine Learning for Optical Network Automation: Overview, Architecture and Applications," (Invited Tutorial) IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 10, pp. D126-D143, 2018.
	L. Velasco, A. Sgambelluri, R. Casellas, Ll. Gifre, J.-L. Izquierdo-Zaragoza, F. Fresi, F. Paolucci, R. Martínez, and E. Riccardi, "Building Autonomic Optical Whitebox-based Networks," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 36, pp. 3097-3104, 2018.
	Ll. Gifre, J.-L. Izquierdo-Zaragoza, M. Ruiz, and L. Velasco, "Autonomic Disaggregated Multilayer Networking," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 10, pp. 482-492, 2018.
	A. P. Vela, B. Shariati, M. Ruiz, F. Cugini, A. Castro, H. Lu, R. Proietti, J. Comellas, P. Castoldi, S. J. B. Yoo, and L. Velasco, "Soft Failure Localization during Commissioning Testing and Lightpath Operation [Invited]," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 10, pp. A27-A36, 2018.
	L. Velasco, Ll. Gifre, J.-L. Izquierdo-Zaragoza, F. Paolucci, A. P. Vela, A. Sgambelluri, M. Ruiz, and F. Cugini, "An Architecture to Support Autonomic Slice Networking [Invited]," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 36, pp. 135-141, 2018.
2017	(10)
	F. Morales, Ll. Gifre, F. Paolucci, M. Ruiz, F. Cugini, P. Castoldi, and L. Velasco, "Dynamic Core VNT Adaptability based on Predictive Metro-Flow Traffic Models," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 9, pp. 1202-1211, 2017.
	A. P. Vela, M. Ruiz, F. Fresi, N. Sambo, F. Cugini, G. Meloni, L. Potí, L. Velasco, and P. Castoldi, "BER Degradation Detection and Failure Identification in Elastic Optical Networks," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 35, pp. 4595-4604, 2017.
	F. Cugini, M. Ruiz, T. Foggi, L. Velasco, N. Sambo, and P. Castoldi, "Dedicated Protection with Signal Overlap in Elastic Optical Networks (EON)," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 9, pp. 1074-1084, 2017.
	R. Vilalta, V. López, A. Giorgetti, S. Peng, V. Orsini, L. Velasco, R. Serral-Gracià, D. Morris, S. De Fina, F. Cugini, P. Castoldi, A. Mayoral, R. Casellas, R. Martínez, C. Verikoukis, and R. Muñoz, "TelcoFog: A unified flexible fog and cloud computing architecture for 5G networks," IEEE Communications Magazine, vol. 55, pp. 36-43, 2017.
	A. P. Vela, M. Ruiz, L. Velasco, "Distributing Data Analytics for Efficient Multiple Traffic Anomalies Detection," Elsevier Computer Communications, vol. 107, pp. 1-12, 2017.
	B. Shariati, J. M. Rivas-Moscoso, D. Marom, S. Ben-Ezra, D. Klonidis, L. Velasco, I. Tomkos, "Impact of Spatial and Spectral Granularity on the Performance of SDM Networks Based on Spatial Superchannel Switching," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 35, pp. 2559-2568, 2017.
	L. Velasco, A. Castro, A. Asensio, M. Ruiz, G. Liu, C. Qin, R. Proietti, S.J. Ben Yoo, "Meeting the Requirements to Deploy Cloud RAN over Optical Networks," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 9, pp. B22-B32, 2017.
	F. Morales, M. Ruiz, Ll. Gifre, L. M. Contreras, V. López, and L. Velasco, "Virtual Network Topology Adaptability based on Data Analytics for Traffic Prediction," (Invited) IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 9, pp. A35-A45, 2017.
	L. Velasco, A. P. Vela, F. Morales, and M. Ruiz, "Designing, Operating and Re-Optimizing Elastic Optical Networks," (Invited Tutorial) IEEE/OSA Journal of Lightwave Technology (JLT), vol. 35, pp. 513-526, 2017.
	Ll. Gifre, M. Tornatore, L. M. Contreras, B. Mukherjee, and L. Velasco, "ABNO-driven Content Distribution in the Telecom Cloud," Elsevier Optical Switching and Networking, vol. 26, pp. 25-38, 2017.
2016	(6)
	A. Asensio, M. Ruiz, L.M. Contreras, and L. Velasco, "Dynamic Virtual Network Connectivity Services to Support C-RAN Backhauling," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 8, pp. B93-B103, 2016.
	A. Castro, L. Velasco, Ll. Gifre, C. Chen, J. Yin, Z. Zhu, R. Proietti, and S. J. B. Yoo, "Brokered Orchestration for End-to-End Service Provisioning across Heterogeneous Multi-Operator (Multi-AS) Optical Networks," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 34, pp. 5391-5400, 2016.
	M. Ruiz, M. Germán, L. M. Contreras, and L. Velasco, "Big Data-backed Video Distribution in the Telecom Cloud," Elsevier Computer Communications, vol. 84, pp. 1-11, 2016.
	M. Klinkowski, M. Zotkiewicz, K. Walkowiak, M. Pióro, M. Ruiz, and L. Velasco, "Solving Large Instances of the RSA Problem in Flexgrid Elastic Optical Networks," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 8, pp. 320-330, 2016.
	O. González de Dios, R. Casellas, F. Paolucci, A. Napoli, Ll. Gifre, A. Dupas, E. Hugues-Salas, R. Morro, S. Belotti, G. Meloni, T Rahman, V. López, R. Martínez, F. Fresi, M. Bohn, S. Yan, L. Velasco, P. Layec, and J.P. Fernandez-Palacios, "Experimental Demonstration of Multi-vendor and Multi-domain Elastic Optical Network with data and control interoperability over a Pan-European Test-bed," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 34, pp. 1610-1617, 2016.
	L. Velasco, F. Morales, Ll. Gifre, A. Castro, O. González de Dios, and M. Ruiz, "On-demand Incremental Capacity Planning in Optical Transport Networks," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 8, pp. 11-22, 2016.
2015	(9)
	M. Dallaglio, A. Giorgetti, N. Sambo, L. Velasco, and P. Castoldi, "Routing, Spectrum, and Transponder Assignment (RSTA) in Elastic Optical Networks," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 33, pp. 4648-4658, 2015.
	L. Velasco, L.M. Contreras, G. Ferraris, A. Stavdas, F. Cugini, M. Wiegand, and J. P. Fernández-Palacios, "A Service-Oriented Hybrid Access Network and Cloud Architecture," IEEE Communications Magazine, vol. 53, pp. 159-165, 2015.
	A. Asensio, M. Ruiz, and L. Velasco, "Orchestrating Connectivity Services to support Elastic Operations in Datacenter Federations," Springer Photonic Network Communications, vol. 29, pp. 291-306, 2015.
	M. Ruiz and L. Velasco, "Serving Multicast Requests on Single Layer and Multilayer Flexgrid Networks," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 7, pp. 146-155, 2015.
	Ll. Gifre, F. Paolucci, O. González de Dios, L. Velasco, L. M. Contreras, F. Cugini, P. Castoldi, and V. López, "Experimental Assessment of ABNO-driven Multicast Connectivity in Flexgrid Networks," (Invited Paper) IEEE/OSA Journal of Lightwave Technology (JLT), vol. 33, pp. 1549-1556, 2015.
	Ll. Gifre, F. Paolucci, L. Velasco, A. Aguado, F. Cugini, P. Castoldi, and V. López, "First Experimental Assessment of ABNO-driven In-Operation Flexgrid Network Re-Optimization," (Invited Paper) IEEE/OSA Journal of Lightwave Technology (JLT), vol. 33, pp. 618-624, 2015.
	F. Paolucci, A. Castro, F. Fresi, M. Imran, A. Giorgetti, B. Bhownik, G. Berrettini, G. Meloni, F. Cugini, L. Velasco, L. Potí, and P. Castoldi, "Active PCE Demonstration performing Elastic Operations and Hitless Defragmentation in Flexible Grid Optical Networks," Springer Photonic Network Communications, vol. 29, pp. 57-66, 2015.
	F. Paolucci, F. Cugini, F. Fresi, G. Meloni, A. Giorgetti, N. Sambo, L. Potí, A. Castro, L. Velasco, and P. Castoldi, "Superfilter technique in SDN-controlled Elastic Optical Networks," (Invited Paper) IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 7, pp. A285-A292, 2015.
	M. Zotkiewicz, M. Ruiz, M. Klinkowski, M. Pióro, and L. Velasco, "Reoptimization of Dynamic Flexgrid Optical Networks After Link Failure Repairs," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 7, pp. 49-61, 2015.
2014	(11)
	M. Ruiz and L. Velasco, "Performance Evaluation of Light-tree Schemes in Flexgrid Optical Networks," IEEE Communications Letters, vol. 18, pp. 1731-1734, 2014.
	F. Paolucci, A. Castro, F. Cugini, L. Velasco, and P. Castoldi, "Multipath Restoration and Bitrate Squeezing in SDN-based Elastic Optical Networks," (Invited Paper) Springer Photonic Network Communications, vol. 28, pp. 45-57, 2014.
	A. Castro, L. Velasco, J. Comellas, and G. Junyent, "On the benefits of Multi-path Recovery in Flexgrid Optical Networks," Springer Photonic Network Communications, vol. 28, pp. 251-263, 2014.
	A. Asensio and L. Velasco, "Managing Transfer-based Datacenter Connections," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 6, pp. 660-669, 2014.
	L. Velasco, A. Castro, M. Ruiz, and G. Junyent, "Solving Routing and Spectrum Allocation Related Optimization Problems: from Off-Line to In-Operation Flexgrid Network Planning," (Invited Tutorial) IEEE/OSA Journal of Lightwave Technology (JLT), vol. 32, pp. 2780-2795, 2014.
	Ll. Gifre, F. Paolucci, A. Aguado, R. Casellas, A. Castro, F. Cugini, P. Castoldi, L. Velasco, and V. López, "Experimental Assessment of In-Operation Spectrum Defragmentation," (Invited Paper) Springer Photonic Network Communications, vol. 27, pp. 128-140, 2014.
	L. Velasco, A. Asensio, J. Ll. Berral, E. Bonetto, F. Musumeci, V. López, "Elastic Operations in Federated Datacenters for Performance and Cost Optimization," Elsevier Computer Communications, vol. 50, pp. 142-151, 2014.
	L. Velasco, D. King, O. Gerstel, R. Casellas, A. Castro, and V. López, "In-Operation Network Planning," IEEE Communications Magazine, vol. 52, pp. 52-60, 2014.
	M. Ruiz, L. Velasco, A. Lord, D. Fonseca, M. Pióro, R. Wessäly, and J.P. Fernández-Palacios, "Planning Fixed to Flexgrid Gradual Migration: Drivers and Open Issues," IEEE Communications Magazine, vol. 52, pp. 70-76, 2014.
	A. Castro, R. Martínez, R. Casellas, L. Velasco, R. Muñoz, R. Vilalta, J. Comellas, "Experimental Assessment of Bulk Path Restoration in Multi-layer Networks using PCE-based Global Concurrent Optimization," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 32, pp. 81-90, 2014.
	L. Velasco, A. Asensio, J.Ll. Berral, A. Castro, V. López, "Towards a Carrier SDN: An example for Elastic Inter-Datacenter Connectivity," (Invited Paper) OSA Optics Express, vol. 22, pp. 55-61, 2014.
2013	(7)
	L. Velasco, A. Asensio, J.Ll. Berral, V. López, D. Carrera, A. Castro, and J.P. Fernández-Palacios, "Cross-Stratum Orchestration and Flexgrid Optical Networks for Datacenter Federations," IEEE Network Magazine, vol. 27, pp. 23-30, 2013.
	O. Pedrola, M. Ruiz, L. Velasco, D. Careglio, O. González de Dios, and J. Comellas, "A GRASP with path-relinking heuristic for the survivable IP/MPLS-over-WSON multi-layer network optimization problem," Elsevier Computers & Operations Research (COR), vol. 40, pp. 3174-3187, 2013.
	L. Velasco, P. Wright, A. Lord, and G. Junyent, "Saving CAPEX by Extending Flexgrid-based Core Optical Networks towards the Edges," (Invited Paper) IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 5, pp. A171-A183, 2013.
	M. Ruiz, M. Pióro, M. Zotkiewicz, M. Klinkowski, and L. Velasco, "Column Generation Algorithm for RSA Problems in Flexgrid Optical Networks," Springer Photonic Network Communications, vol. 26, pp. 53-64, 2013.
	L. Velasco, P. Wright, A. Lord, and G. Junyent, "Designing National IP/MPLS Networks with Flexgrid Optical Technology," (Invited Paper) OSA Optics Express, vol. 21, pp. 3336-3341, 2013.
	M. Klinkowski, M. Ruiz, L. Velasco, D. Careglio, V. Lopez, and J. Comellas, "Elastic Spectrum Allocation for Time-Varying Traffic in FlexGrid Optical Networks," IEEE Journal on Selected Areas in Communications (JSAC), vol. 31, pp. 26-38, 2013.
	O. Pedrola, D. Careglio, M. Klinkowski, L. Velasco, K. Bergman, J. Sole-Pareta, "Metaheuristic hybridizations for the Regenerator Placement and Dimensioning problem in sub-wavelength switching optical networks," Elsevier European Journal of Operational Research (EJOR), vol. 224, pp. 614-624, 2013.
2012	(7)
	O. Pedrola, A. Castro, L. Velasco, M. Ruiz, J.P. Fernández-Palacios, D. Careglio, "CAPEX study for Multilayer IP/MPLS over Flexgrid Optical Network," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 4, pp. 639-650, 2012.
	M. Ruiz, L. Velasco, P. Monti, and L. Wosinska, "A Linearized Statistical XPM Model for Accurate Q-factor Computation," IEEE Communications Letters, vol. 16, pp. 1324-1327, 2012.
	A. Castro, L. Velasco, M. Ruiz, M. Klinkowski, J. P. Fernández-Palacios, and D. Careglio, "Dynamic Routing and Spectrum (Re)Allocation in Future Flexgrid Optical Networks," Elsevier Computers Networks, vol. 56, pp. 2869-2883, 2012.
	L. Velasco, M. Klinkowski, M. Ruiz, and J. Comellas, "Modeling the Routing and Spectrum Allocation Problem for Flexgrid Optical Networks," Springer Photonic Network Communications, vol. 24, pp. 177-186, 2012.
	L. Velasco, A. Jirattigalachote, M. Ruiz, P. Monti, L. Wosinska, and G. Junyent, "Statistical Approach for Fast Impairment-Aware Provisioning in Dynamic All-Optical Networks," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 4, pp. 130-141, 2012.
	L. Pérez, L. Velasco, J. Rodríguez, P. Capelastegui, G. Hernández-Sola, L. Calavia, A. Marqués, B. Iribarne, A. Pozo, and A. De Poorter, "Network convergence and QoS for future multimedia services in the VISION project," Elsevier Computers Networks, vol. 56, pp. 1183-1199, 2012.
	L. Velasco, O. González de Dios, S. Ricciardi, A. Castro, F. Muñoz, D. Careglio, and J. Comellas, "Value Optimization of Survivable Multilayer IP/MPLS-over-WSON Networks," Springer Photonic Network Communications, vol. 23, pp. 246-258, 2012.
2011	(5)
	M. Ruiz, O. Pedrola, L. Velasco, D. Careglio, J. Fernández-Palacios, and G. Junyent, "Survivable IP/MPLS-Over-WSON Multilayer Network Optimization," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 3, pp. 629-640, 2011.
	L. Velasco, M. Ruiz, J. Perelló, S. Spadaro, and J. Comellas, "Service and Resource Differentiation in Shared-Path Protection Environments to Maximize Network Operator's Revenues," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 3, pp. 117-126, 2011.
	S. Azodolmolky, J. Perelló, M. Angelou, F. Agraz, L. Velasco, S. Spadaro, Y. Pointurier, A. Francescon, C. Vijaya, P. Kokkinos, E. Varvarigos, S. Al Zahr, M. Gagnaire, M. Gunkel, D. Klonidis, and I. Tomkos, "Experimental Demonstration of an Impairment Aware Network Planning and Operation Tool for Transparent/Translucent Optical Networks," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 29, pp. 439-448, 2011.
	M. Ruiz, J. Perelló, L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "GMPLS Control Plane Network Design with Resilience Guarantees," IEEE/OSA Journal of Lightwave Technology (JLT), vol. 29, pp. 37-47, 2011.
	G. Hernández-Sola, J. Perelló, F. Agraz, L. Velasco, S. Spadaro, and G. Junyent, "Enhanced Domain Disjoint Backward Recursive TE Path Computation for PCE-based Multi-domain Networks," Springer Photonic Network Communications, vol. 21, pp. 141-151, 2011.
2010	(2)
	L. Velasco, F. Agraz, R. Martínez, R. Casellas, S. Spadaro, R. Muñoz, and G. Junyent, "GMPLS-based Multi-domain Restoration: Analysis, Strategies, Policies and Experimental Assessment," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 2, pp. 427-441, 2010.
	F. Agraz, L. Velasco, J. Perelló, M. Ruiz, S. Spadaro, G. Junyent, and J. Comellas, "Deployment and Validation of GMPLS-Controlled Multi-layer Integrated Routing over the ASON/GMPLS CARISMA Test-bed," Journal of Networks, vol. 5, pp. 1321-1327, 2010.
2009	(3)
	M. Ruiz, J. Perelló, L. Velasco, S. Spadaro, and J. Comellas, "An Analytical Model for GMPLS Control Plane Resilience Quantification," IEEE Communications Letters, vol. 13, pp. 977-979, 2009.
	F. Agraz, L. Velasco, J. Perelló, M. Ruiz, S. Spadaro, G. Junyent, and J. Comellas, "Design and Implementation of a GMPLS-Controlled Grooming-capable Optical Transport Network," IEEE/OSA Journal of Optical Communications and Networking (JOCN), vol. 1, pp. A258-A269, 2009.
	L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Shared-path protection with extra-traffic in ASON/GMPLS ring networks," OSA Journal of Optical Networking (JON), vol. 8, pp. 130-145, 2009.
2008	(1)
	L. Velasco, S. Spadaro, J. Comellas, and G. Junyent, "Introducing OMS protection in GMPLS-based optical ring networks," Elsevier Computers Networks, vol. 52, pp. 1975-1987, 2008.