BeGREEN: Beyond 5G Energy Efficient Networking by Hardware Acceleration and AI-Driven Management of Network Functions
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BeGREEN Position Paper This paper presents a technical overview of BeGREEN…Author/Speaker/Contributor
Mir Ghoraishi (Gigasys Solutions), Miguel Catalan-Cid (i2CAT), Vladica Sark (IHP),…Event/Publication
EuCNC 2023Date
June 2023
BeGREEN Intelligent Plane for AI-driven Energy Efficient O-RAN management
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Cellular networks are undergoing a revolutionary transform with the advent…Author/Speaker/Contributor
Miguel Catalan-Cid i2CAT Foundation, Spain, Jorge Pueyo, Juan Sanchez-Gonzalez, Jesus…Event/Publication
2024 Joint European Conference on Networks and Communications & 6G…Date
July 2024Policy-Guided ML for Energy Savings: Cell On/Off Switching under Operator QoS Constraints in Real 5G Networks
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Energy efficiency is a critical concern in the deployment and…Author/Speaker/Contributor
David Reiss, Miguel Catalan-Cid, Daniel Camps, Oriol SallentEvent/Publication
27th International Conference on Modeling, Analysis and Simulation of Wireless…Date
October 2025AegisRAN: A Fair and Energy-Efficient Computing Resource Allocation Framework for vRANs
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The virtualization of Radio Access Networks (vRAN) is rapidly becoming…Author/Speaker/Contributor
Ethan Sanchez Hidalgo, Jose A. Ayala-Romero, J. Xavier Salvat Lozano,…Event/Publication
IEEE Transactions on Mobile ComputingDate
October 2025Echoes: An Open RAN-Enabled System for Indoors Localization Using Smart Surfaces
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Indoor localization systems are poised to revolutionize mobile applications, enabling…Author/Speaker/Contributor
Pau Baguer, J. Xavier Salvat Lozano, Guillermo Encinas Lago, Placido…Event/Publication
IEEE Open Journal of the Communications SocietyDate
August 2025Quantifying the Energy-Saving and QoS Trade-Off in Traffic Offloading for Real 4G/5G Scenarios
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Despite the potential for higher energy efficiency in 5G networks,…Author/Speaker/Contributor
David Reiss, Miguel Catalan-Cid, Daniel Camps, Oriol SallentEvent/Publication
IEEE ICC 2025 Fourth International Workshop on Green and Sustainable…Date
June 2025Comparative Analysis of Reconfigurable Intelligent Surfaces and Relay Nodes for Energy Saving
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Different technologies are currently being investigated to reduce the energy…Author/Speaker/Contributor
Jordi Pérez-Romero, J. Xavier Salvat Lozano, Jose A. Ayala-Romero, Oriol…Event/Publication
Joint European Conference on Networks and Communications & 6G Summit…Date
June 2025FairRIC: Real-time Fair Allocation in O-RAN with Shared Computing
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The deployment of O-RAN systems on general-purpose computing platforms represents…Author/Speaker/Contributor
Fatih Aslan, Jose A. Ayala-Romero, Andres Garcia-Saavedra, Xavier Costa-Perez, George…Event/Publication
IEEE INFOCOM 2025 - IEEE Conference on Computer CommunicationsDate
May 2025Demo: BeGREEN Intelligence Plane for AI-driven Energy Efficient O-RAN management
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Cellular networks management is being enhanced by O-RAN architecture and…Author/Speaker/Contributor
Miguel Catalan-Cid, German Castellanos, David Reiss, Joss ArmstrongEvent/Publication
IEEE INFOCOM 2025 - IEEE Conference on Computer Communications Workshops…Date
May 2025Kairos: Energy-Efficient Radio Unit Control for O-RAN via Advanced Sleep Modes
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The high energy footprint of 5G base stations, particularly the…Author/Speaker/Contributor
Josep Xavier Salvat, Jose A. Ayala-Romero, Andres Garcia-Saavedra, Xavier Costa-PerezEvent/Publication
IEEE INFOCOM 2025 - IEEE Conference on Computer CommunicationsDate
May 2025MemorAI: Energy-Efficient Last-Level Cache Memory Optimization for Virtualized RANs.
This paper investigates cache memory allocation mechanisms’ effectiveness in reducing total energy consumption.
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The virtualization of Radio Access Networks (vRAN) is well on…Author/Speaker/Contributor
Ethan Sanchez, J. Xavier Salvat, Jose A. Ayala-Romero, Andres Garcia-Saavedra,…Event/Publication
IEEE International Conference on Machine Learning for Communication and Networking…Date
August 2024Mean-Field Multi-Agent Contextual Bandit for Energy-Efficient Resource Allocation in vRANs
In this paper, we gather data from our experimental platform and compare the performance and energy consumption of a HA (NVIDIA GPU V100) vs. a CPU (Intel Xeon Gold 6240R, 16 cores) for energy-friendly software processing.
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Radio Access Network (RAN) virtualization, key for new-generation mobile networks,…Author/Speaker/Contributor
Jose A. Ayala-Romero, Leonardo Lo Schiavo, Andres Garcia-Saavedra, Xavier Costa-PerezEvent/Publication
IEEE INFOCOM 2024 - IEEE Conference on Computer CommunicationsDate
August 2024Pre-Emptive Conflict Detection Architecture for O-RAN Service Management and Orchestration
This paper proposes an extension to the O-RAN SMO architecture to incorporate a component that can predict when configuration changes are likely to degrade network performance.
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The evolution of telecommunications networks from closed to open architectures…Author/Speaker/Contributor
Joss Armstrong, Enda Fallon, Sheila FallonEvent/Publication
IEEE International Conference on Industry 4.0, Artificial Intelligence, and Communications…Date
August 2024Assessment of Energy Savings in Relay-Assisted 5G and Beyond Radio Access Networks
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Reducing the overall energy consumption in mobile networks is currently…Author/Speaker/Contributor
J. Pérez-Romero, O. Ruiz, O. SallentEvent/Publication
IEEEDate
July 2024Attacking O-RAN Interfaces: Threat Modeling, Analysis and Practical Experimentation
Acknowledging the new security challenges arising from the expanded threat surface, O-RAN WG11 provides procedures to identify threats and assess and mitigate risks.
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A new generation of open and disaggregated Radio Access Networks…Author/Speaker/Contributor
Pau Baguer, Girma M Yilma, Esteban Municio, Gines Garcia-Aviles, Andres…Event/Publication
IEEE Open Journal of the Communications SocietyDate
July 2024Enabling Beyond-Visual-Line-of-Sight Drones Operation over Open RAN 5G Networks with Slicing
While current 5G technologies promise to meet the performance requirements in terms of throughput and latency, there is a lack of studies regarding how to achieve full reliability in practice.
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Among the foretold claims of the transition from 5G to…Author/Speaker/Contributor
Pau Baguer, Esteban Municio, Gines Garcia-Aviles, Xavier Costa-PerezEvent/Publication
IEEE Network MagazineDate
July 2024YinYangRAN: Resource Multiplexing in GPU-Accelerated Virtualized RANs
RAN virtualization is revolutionizing the telco in- dustry, enabling 5G Distributed Units to run using general- purpose platforms equipped with Hardware Accelerators (HAs).
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RAN virtualization is revolutionizing the telco in- dustry, enabling 5G…Author/Speaker/Contributor
Leonardo Lo Schiavo, Jose A. Ayala-Romero, Andres Garcia-Saavedra, Marco Fiore,…Event/Publication
IEEEDate
May 2024Open Experimental Measurements of Sub-6GHz Reconfigurable Intelligent Surfaces
In this paper, we present two datasets that we make publicly available for research.
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In this paper, we present two datasets that we make…Author/Speaker/Contributor
Marco Rossanese, Placido Mursia, Andres Garcia-Saavedra, Vincenzo Sciancalepore, Arash Asadi,…Event/Publication
IEEE Internet ComputingDate
April 2024AI-ready energy modelling for next generation RAN
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Abstract: Recent sustainability drives place energy-consumption metrics in centre-stage for…Author/Speaker/Contributor
Kishan Sthankiya, Keith Briggs, Mona Jaber, Richard CleggEvent/Publication
IEEE Wireless Communications and Networking Conference (WCNC), April 21-23,…Date
April 2024Space and time user distribution measurements dataset in a university campus
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Radio Resource Management (RRM) strategies are essential components in mobile…Author/Speaker/Contributor
Olga Ruiz, Juan Sánchez-González, Jordi Pérez-Romero, Oriol Sallent, Irene VilàEvent/Publication
Compute NetworksDate
March 2024AIRIC: Orchestration of virtualized radio access networks with noisy neighbours
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Radio Access Networks virtualization (vRAN) is on its way becoming…Author/Speaker/Contributor
J. X. Salvat Lozano, A. Garcia-Saavedra, X. Li, and X.…Event/Publication
IEEE Journal on Selected Areas in CommunicationsDate
February 2024Fair Resource Allocation in Virtualized O-RAN Platforms
This paper presents first a series of experiments which assess the O-Cloud's energy costs and their dependency on the servers' hardware, capacity and data traffic properties which, typically, change over time.
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(Best Student Paper Award) Abstract- O-RAN systems and their deployment in…Author/Speaker/Contributor
Fatih Aslan, George Iosifidis, Jose A. Ayala-Romero, Andres Garcia-Saavedra, Xavier…Event/Publication
Proceedings of the ACM on Measurement and Analysis of Computing…Date
February 2024Risk-Aware Continuous Control with Neural Contextual Bandits
In this paper, we propose a risk-aware decision-making framework for contextual bandit problems, accommodating constraints and continuous action spaces.
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Recent advances in learning techniques have garnered attention for their…Author/Speaker/Contributor
Jose A. Ayala-Romero, Andres Garcia-Saavedra, and Xavier Costa-PerezEvent/Publication
The38th Annual Conference on Artificial IntelligenceDate
December 2023
EdgeBOL: A Bayesian Learning Approach for the Joint Orchestration of vRANs and Mobile Edge AI
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This article proposed a Bayesian learning framework for jointly configuring…Author/Speaker/Contributor
Jose A. Ayala-Romero, et al. (NEC)Event/Publication
IEEE/ACM Transactions on NetworkingDate
December 2023A Tutorial on the Characterisation and Modelling of Low Layer Functional Splits for Flexible Radio Access Networks in 5G and Beyond
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The centralization of baseband (BB) functions in a radio access…Author/Speaker/Contributor
J. Pérez-Romero, O. Sallent, A. Gelonch, X. Gelabert, B. Klaiqi,…Event/Publication
IEEE Communications Surveys & TutorialsDate
December 2023Understanding the Performance and Power Saving Tradeoffs of Server Sleep States
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This paper presents a technical overview of BeGREEN project and…Author/Speaker/Contributor
A. Griffiths, A. Morsman and P. Veitch (BT)Event/Publication
IEEE International Conference on Cloud Networking 2023 (CloudNet’23)Date
November 2023Exploiting Cell Similarities in a Radio Access Network to Enhance Explainability for Autonomic Network Management Systems
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Modern telecommunications networks are highly complex and require constant real-time…Author/Speaker/Contributor
J. Armstrong (LMI) and S. Fallon and E. Fallon (TUS)Event/Publication
12th International Conference on Control, Automation and Information Sciences (ICCAIS…Date
November 2023Deep Learning-based Algorithm for Optimizing Relay User Equipment Activation in 5G Cellular Networks
This article addresses the problem of optimally using the relay capabilities of user equipment (UE) to augment the radio access network (RAN) in 5G deployments and beyond.
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This article addresses the problem of optimally using the relay…Author/Speaker/Contributor
Juan Jesús Hernández-Carlón, Jordi Pérez-Romero, Oriol Sallent, Irene Vilà and…Event/Publication
IEEE Transactions on Vehicular TechnologyDate
October 2023
Dimensionality Reduction for Optimization of Radio Base Station Transmission Based on Energy Efficiency
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Large amounts of data are available to determine the current…Author/Speaker/Contributor
Joss Armstrong (LMI), Enda Fallon,Event/Publication
2023 IEEE 64th International Scientific Conference on Information Technology and…Date
October 2023
O-RAN: Analysis of Latency-Critical Interfaces and Overview of Time Sensitive Networking Solutions
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Another quality publication by the team on 'Analysis of Latency-Critical…Author/Speaker/Contributor
E. Municio, G. Garcia-Aviles, A. Garcia-Saavedra; X. Costa-PérezEvent/Publication
IEEE Communications Standards MagazineDate
September 2023
Open Radio Access Networks (O-RAN) Experimentation Platform: Design and Datasets
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The Open Radio Access Network (O-RAN) Alliance is driving the…Author/Speaker/Contributor
J. Xavier Salvat, et al.,Event/Publication
IEEE Communications Magazine, (Volume:61, Issue: 9)Date
September 2023Optimizing antenna beamforming with quantum computing
We show how the maximization problem can be rigorously solved by reformulating it as a sequence of quadratic (but non-convex) minimization problems.
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We consider beamforming with largescale antenna arrays in which the…Author/Speaker/Contributor
Keith BriggsEvent/Publication
EuCAP 2023Date
March 2023
