The Blurring RAN

Publications

Conference Papers:

• K. Koutlia and S. Lagen, "Analysis of Open RAN Fronthaul Control mechanisms under XR traffic scenarios," 2025 IEEE Conference on Network Function Virtualization and Software-Defined Networking (NFV-SDN), Athens, Greece, 2025, pp. 1-6, doi: 10.1109/NFV-SDN66355.2025.11349441.
• J. Baranda, A. Bel, S. Barrachina-Muñoz, M. Payaró and J. Mangues-Bafalluy, "Design and Evaluation of an Orchestrated E2E Cloud-Native Mobile Network with O-RAN," 2025 21th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), Marrakesh, Morocco, 2025, pp. 1-6, doi: 10.1109/WiMob66857.2025.11257475.
• H. Kim, K. Koutlia, B. Bojovic, A. Ashtari and G. Carvalho, "DRILL-Q: Delay-Responsive Intelligent Learning for Latency-sensitive QoS," 2025 34th International Conference on Computer Communications and Networks (ICCCN), Tokyo, Japan, 2025, pp. 1-9, doi: 10.1109/ICCCN65249.2025.11134004.
• H. Kim, K. Koutlia, B. Bojović, A. Ashtari, and G. Ferreira, "Evolving 5G-LENA Towards 6G: Integrating AI for Intelligent Scheduling of Multi-Flow Traffic", In Proceedings of the 2025 International Conference on ns-3 (ICNS3 '25). Association for Computing Machinery, New York, NY, USA, 134–142. https://doi.org/10.1145/3747204.3747222
• J. Albuquerque, A. Klautau, B. Bojović, A. Ashtari, G. Carvalho, and S. Lagén, "Flexible Channel Model Configuration for Scalable 5G-LENA Simulations", In Proceedings of the 2025 International Conference on ns-3 (ICNS3 '25). Association for Computing Machinery, New York, NY, USA, 125–133. https://doi.org/10.1145/3747204.3747211
• A. A. Gargari, G. Carvalho, B. Bojović, and S. Lagén, "Improving 5G-LENA: Multiple Panel Antenna Support, Kronecker Beamforming and RSRP-Based Attachment", In Proceedings of the 2025 International Conference on ns-3 (ICNS3 '25). Association for Computing Machinery, New York, NY, USA, 20–28. https://doi.org/10.1145/3747204.3747213.
• J. Baranda, J. V. Martínez, A. Bel, D. Gregoratti, L. M. Contreras and J. Mangues-Bafalluy, "Full Orchestration of a Distributed 5G Cloud-Native Mobile Network: O-Ran, Core, and Transport," 2025 IEEE 11th International Conference on Network Softwarization (NetSoft), Budapest, Hungary, 2025, pp. 315-317, doi: 10.1109/NetSoft64993.2025.11080589.
• N. Villegas, J. L. Herrera, L. Diez, D. Scotece, L. Foschini and R. Agüero, "DRL-Based Dynamic MAC Scheduler Reconfiguration in O-RAN," ICC 2025 - IEEE International Conference on Communications, Montreal, QC, Canada, 2025, pp. 5023-5028, doi: 10.1109/ICC52391.2025.11160805.
• J. Baranda, A. Bel, S. Barrachina-Muñoz, M. Payaró and J. Mangues-Bafalluy, "End-to-End Slice Orchestration in a 5G cloud-native Mobile Network with O-RAN Split 7.2," IEEE INFOCOM 2025 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), London, United Kingdom, 2025, pp. 1-2, doi: 10.1109/INFOCOMWKSHPS65812.2025.11152761.
• J. Baranda, A. Bel, S. Barrachina-Muñoz, M. Payaró and J. Mangues-Bafalluy, "An Automated Configurable Cloud-Native Monitoring System for the Radio Access Network," 2025 IEEE Wireless Communications and Networking Conference (WCNC), Milan, Italy, 2025, pp. 1-3, doi: 10.1109/WCNC61545.2025.10978753.
• A. Larrañaga-Zumeta, N. Villegas, K. Koutlia, L. Diez, R. Agüero and S. Lagín, "Novel Fronthaul Control Method to Address the Fronthaul/Air Interface Tradeoff," 2025 IEEE Wireless Communications and Networking Conference (WCNC), Milan, Italy, 2025, pp. 1-6, doi: 10.1109/WCNC61545.2025.10978658.
• A. A. Gargari et al., "AI-Powered Data Synthesis for Advanced Simulation in 5G/6G mmWave Integrated Access and Backhaul Networks," 2025 20th Wireless On-Demand Network Systems and Services Conference (WONS), Hintertux, Austria, 2025, pp. 1-8.
• F. Rezazadeh, A. A. Gargari, S. Lagén, J. Mangues-Bafalluy, D. Niyato and L. Liu, "GenOnet: Generative Open xG Network Simulation with Multi-Agent LLM and ns-3," 2024 3rd International Conference on 6G Networking (6GNet), Paris, France, 2024, pp. 69-71, doi: 10.1109/6GNet63182.2024.10765766.
• Nikolaos Bartzoudis, José Rubio Fernández, David López-Bueno, Godfrey Kibalya and Angelos Antonopoulos, “Micro-orchestration of RAN functions accelerated in FPGA SoC devices”, to appear in the proceeding of the IEEE International Conference on 6G Networking (6GNet 2024), October 21-24, 2024, Paris, France.
• F. Khan et al., "QoS-Aware scheduling policies for Open Fronthaul transport networks," 2024 IEEE International Mediterranean Conference on Communications and Networking (MeditCom), Madrid, Spain, 2024, pp. 335-340, doi: 10.1109/MeditCom61057.2024.10621072.
• Neco Villegas, Ana Larrañaga, Luis Diez, Katerina Koutlia, Sandra Lagén, and Ramón Agüero, "Extending QoS-aware scheduling in ns-3 5G-LENA: A Lyapunov based solution", In Proceedings of the 2024 Workshop on ns-3 (WNS3 '24).
• Katerina Koutlia, Sandra Lagen, and Biljana Bojovic. 2023. Enabling QoS Provisioning Support for Delay-Critical Traffic and Multi-Flow Handling in ns-3 5G-LENA. In Proceedings of the 2023 Workshop on ns-3 (WNS3 '23). Association for Computing Machinery, New York, NY, USA, 45–51.
• J. Baranda, J. Mangues-Bafalluy, L. Vettori, R. Martínez and E. Zeydan, "Enabling the SLA Management of Federated Network Services through Scaling Operations," 2022 IEEE Symposium on Computers and Communications (ISCC), Rhodes, Greece, 2022, pp. 1-6.
• B. Bojovic, Z. Ali, and S. Lagen. ns-3 and 5G-LENA Extensions to Support Dual-Polarized MIMO. In Proceedings of the 2022 Workshop on ns-3 (WNS3 '22). Association for Computing Machinery, NY, USA, 1–9.
• B. Bojovic and S. Lagen. Enabling NGMN Mixed Traffic Models for ns-3. In Proceedings of the 2022 Workshop on ns-3 (WNS3 '22). Association for Computing Machinery, New York, NY, USA, 127–134.

Journals:

• N. Villegas, A. Larrañaga, L. Diez, K. Koutlia, S. Lagén and R. Agüero, "Optimizing QoS MAC Scheduling in 5G NR: A Lyapunov Approach Evaluated With XR Traffic," in IEEE Transactions on Network and Service Management, vol. 23, pp. 910-924, 2026, doi: 10.1109/TNSM.2025.3631520.
• A. Larrañaga-Zumeta, N. Villegas, K. Koutlia, L. Diez, R. Agüero, S. Lagén, "Analysis of different functional split options for XR traffic in 5G-LENA", Simulation Modelling Practice and Theory, Volume 145, 2025, 103211, ISSN 1569-190X, https://doi.org/10.1016/j.simpat.2025.103211.
• G. Carvalho, S. Lagén, "Analysis and optimizations of PMI and rank selection algorithms for 5G NR", Simulation Modelling Practice and Theory, Volume 144, 2025, 103162, ISSN 1569-190X, https://doi.org/10.1016/j.simpat.2025.103162.
• A. Larrañaga et al., "Fronthaul/Midhaul Networks: Capacity and Latency Requirements Imposed by 6G Disaggregated RANs," in IEEE Communications Magazine, vol. 63, no. 5, pp. 86-93, May 2025, doi: 10.1109/MCOM.002.2400419.
• B. Bojović, S. Lagén, "3GPP-compliant single-user MIMO model for high-fidelity mobile network simulations", Computer Networks, Volume 256, 2025,
  110912, ISSN 1389-1286, https://doi.org/10.1016/j.comnet.2024.110912.
• Katerina Koutlia, Sandra Lagén, "On the impact of Open RAN Fronthaul Control in scenarios with XR Traffic", Computer Networks, Volume 253, August 2024.
• Sergio Barrachina-Muñoz, Rasoul Nikbakht, Jorge Baranda, Miquel Payaró, Josep Mangues-Bafalluy, Panagiotis Kokkinos, Polyzois Soumplis, Aristotelis Kretsis, Emmanouel Varvarigos, "Deploying cloud-native experimental platforms for Zero Touch management 5G and beyond networks", in IET Networks,  July 2023.
• B. Bojović, S. Lagén, K. Koutlia, X. Zhang, P. Wang and L. Yu, "Enhancing 5G QoS Management for XR Traffic Through XR Loopback Mechanism," in IEEE Journal on Selected Areas in Communications, vol. 41, no. 6, pp. 1772-1786, June 2023.
• Katerina Koutlia, Biljana Bojovic, Sandra Lagén, Xiaodi Zhang, Ping Wang, and Jimin Liu. 2023. System Analysis of QoS Schedulers for XR Traffic in 5G NR. Elsevier Simulation Modelling Practice and Theory 125 (2023), 102745. 
• S. Lagen, B. Bojovic, K. Koutlia, X. Zhang, P. Wang and Q. Qu, "QoS Management for XR Traffic in 5G NR: A Multi-Layer System View & End-to-End Evaluation," in IEEE Communications Magazine.
• R. Martínez, L. Vettori, J. Baranda, J. Mangues-Bafalluy, E. Zeydan and B. Bakhshi, "Resource Abstractions in NFV Management and Orchestration: Experimental Evaluation," in IEEE Transactions on Network and Service Management, vol. 20, no. 1, pp. 608-624, March 2023.
• S. Lagén, X. Gelabert, A. Hansson, M. Requena, L. Giupponi, "Fronthaul Compression Control for Shared Fronthaul Access Networks," in IEEE Communications Magazine, vol. 60, no. 10, pp. 36-42, October 2022.
• K. Koutlia, B. Bojovic, Z. Ali, S. Lagén, Calibration of the 5G-LENA System Level Simulator in 3GPP Reference Scenarios, Simulation Modelling Practice and Theory 119 (2022), 102580.

Demo Papers:

• J.Baranda, A.Bel, S.Barrachina-Muñoz, M.Payaró, J.Mangues-Bafalluy, "Demo: On-demand Disaggregated Deployment of Cloud-Native Mobile Networks from Core to RAN", ACM 25th International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile Computing (ACM MobiHoc), October 14-17 2024, Athens, Greece.
• J.Baranda, A.Bel, S.Barrachina-Muñoz, M.Payaró, J.Mangues-Bafalluy, "Distributed Sequential Cloud-Native Deployment of an End-to-End 5G Network with O-RAN Functions", IEEE 15th International Conference on Network of the Future (IEEE NoF), October 02-04 2024, Castelldefels (Barcelona), Spain.
• S. Barrachina-Muñoz, R. Nikbakht, A. Bel, J. Baranda, M. Payaró, J. Mangues-Bafalluy, "DEMO: On-Demand 5G/6G Edge Verticals via Third-Party UPF Selection and Cloud-Native Relocation", Conference 29th IEEE Symposium on Computers and Communications (ISCC), 26-29 June 2024, Paris, France
• J. Baranda, A. Galal, L. Vettori, A. Mpatziakas, A. Gentili, A. Sinanis, A. Yastrebova-Castillo, G. Gómez, S. Karageorgiou, A. Drosou, J. Scholliers, M. Payaró, J. Mangues-Bafalluy, "An AI/ML Proactive Network Service Relocation Approach for Multi-Admin Domain Scenarios", in IEEE/IFIP Network Operations and Management Symposium 6–10 May 2024, Seoul, South Korea.
• J. Baranda, S. Barrachina-Muñoz, R. Nikbakht, M. Payaró, J. Mangues-Bafalluy, “Disaggregating a 5G Non-Public Network via On-demand Cloud-Native UPF Deployments“, IEEE/IFIP 19th International Conference on Network and Service Management (IEEE/IFIP CNSM), 30 October-2 November 2023, Niagara Falls, Canada
• S. Barrachina-Muñoz, J. Baranda, M. Payaró and J. Mangues-Bafalluy, "Intent-Based Orchestration for Application Relocation in a 5G Cloud-native Platform," 2022 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN), Phoenix, AZ, USA, 2022, pp. 94-95.
• J. Baranda, L. Vettori, J. Mangues-Bafalluy, R. Martinez and E. Zeydan, "Demo: Automated Multi-Site E2E Orchestration of Hybrid Network Services Mixing PNF, VNF and CNFs," 2022 IEEE Symposium on Computers and Communications (ISCC), Rhodes, Greece, 2022, pp. 1-3.
• J. Baranda et al., ZSM-based Orchestration for Inter-Administrative Domain Cross-Border Vehicular Scenarios, IEEE International Conference on Sensing, Communication, and Networking (IEEE SECON 2022), 20-23 September 2022, virtual.

Presentations

• SaS/CTTC is WIDE OPEN. On Openness scales. Open SNS Workgroup Workshop, June 28, 2023.
• La visión del CTTC en ÚNICO I+D. Valencia 5G Day. 30/05/2022
• Utilizing LLMs for Understanding, Monitoring, and Control of 6G Networks, Rasoul Nikbakht and Albert Bell, NoF 2024 Tutorials, October 02-04, 2024 Castelldefels (Barcelona), Spain

Workshops

• IEEE International Mediterranean Conference on Communications and Networking, 8–11 July 2024 // Madrid, Spain
• "1st srsRAN Workshop". Arlington, USA  October 2023