21 citations · 54 across the 19 of their papers we have counts for
19 papers · 1 filter
Unified Evaluation Methodology for AI-Native Integrated Sensing and Communication
Filip Lemic, Andra Blaga, Francesco Devoti +24
Integrated Sensing and Communication (ISAC) couples radio sensing, data transmission, and control actions within a single closed-loop system. When Artificial Intelligence (AI)-driv…
From Waves to Graphs: A Ray-Tracing-Inspired Neural Radio Propagation Model
Paul Almasan, Stefanos Bakirtzis, José Suárez-Varela +1
Artificial intelligence-driven radio propagation models provide agile and robust solutions for mobile network operators in their effort to ensure the optimal performance of the wir…
Meta-Learning-Based Handover Management in NextG O-RAN
Michail Kalntis, George Iosifidis, José Suárez-Varela +2
While traditional handovers (THOs) have served as a backbone for mobile connectivity, they increasingly suffer from failures and delays, especially in dense deployments and high-fr…
Energy-Efficient Task Computation at the Edge for Vehicular Services
Paniz Parastar, Giuseppe Caso, Jesus Alberto Omana Iglesias +2
Multi-access edge computing (MEC) is a promising solution for providing the computational resources and low latency required by vehicular services such as autonomous driving. It en…
Radio Propagation Modelling: To Differentiate or To Deep Learn, That Is The Question
Stefanos Bakirtzis, Paul Almasan, José Suárez-Varela +5
Differentiable ray tracing has recently challenged the status quo in radio propagation modelling and digital twinning. Promising unprecedented speed and the ability to learn from r…
Anomaly Detection for IoT Global Connectivity
Jesus Omaña Iglesias, Carlos Segura Perales, Stefan Geißler +2
Internet of Things (IoT) application providers rely on Mobile Network Operators (MNOs) and roaming infrastructures to deliver their services globally. In this complex ecosystem, wh…
Uncovering Issues in the Radio Access Network by Looking at the Neighbors
José Suárez-Varela, Andra Lutu
Mobile network operators (MNOs) manage Radio Access Networks (RANs) with massive amounts of cells over multiple radio generations (2G-5G). To handle such complexity, operations tea…
Smooth Handovers via Smoothed Online Learning
Michail Kalntis, Andra Lutu, Jesús Omaña Iglesias +2
With users demanding seamless connectivity, handovers (HOs) have become a fundamental element of cellular networks. However, optimizing HOs is a challenging problem, further exacer…
Challenges and Opportunities for Global Cellular Connectivity
Viktoria Vomhoff, Hyunseok Daniel Jang, Matteo Varvello +4
Traditional cellular service was designed for global connectivity, but business and logistical constraints led to its fragmentation, with deployments limited to individual countrie…
Through the Telco Lens: A Countrywide Empirical Study of Cellular Handovers
Michail Kalntis, José Suárez-Varela, Jesús Omaña Iglesias +4
Cellular networks rely on handovers (HOs) as a fundamental element to enable seamless connectivity for mobile users. A comprehensive analysis of HOs can be achieved through data fr…
Unraveling the Airalo Ecosystem
Hyunseok Daniel Jang, Matteo Varvello, Andra Lutu +1
In recent years, we have witnessed myriad flavours of Mobile Network Aggregators (MNAs) which exploit the coverage footprint of a handful of base operators to provide global mobile…
Designing the Network Intelligence Stratum for 6G Networks
Paola Soto, Miguel Camelo, Gines Garcia-Aviles +15
As network complexity escalates, there is an increasing need for more sophisticated methods to manage and operate these networks, focusing on enhancing efficiency, reliability, and…
Enhancing 5G Radio Planning with Graph Representations and Deep Learning
Paul Almasan, José Suárez-Varela, Andra Lutu +2
The roll out of new mobile network generations poses hard challenges due to various factors such as cost-benefit tradeoffs, existing infrastructure, and new technology aspects. In…
A Characterization of the COVID-19 Pandemic Impact on a Mobile Network Operator Traffic
Andra Lutu, Diego Perino, Marcelo Bagnulo +2
During early 2020, the SARS-CoV-2 virus rapidly spread worldwide, forcing many governments to impose strict lockdown measures to tackle the pandemic. This significantly changed peo…
A first look at the IP eXchange Ecosystem
Andra Lutu, Byunjin Jun, Fabian Bustamante +3
The IPX Network interconnects about 800 Mobile Network Operators (MNOs) worldwide and a range of other service providers (such as cloud and content providers). It forms the core th…
Where Things Roam: Uncovering Cellular IoT/M2M Connectivity
Andra Lutu, Byunjin Jun, Alessandro Finamore +2
Support for things roaming internationally has become critical for Internet of Things (IoT) verticals, from connected cars to smart meters and wearables, and explains the commercia…
DICE: Dynamic Interconnections for the Cellular Ecosystem
Andra Lutu, Marcelo Bagnulo, Diego Perino
To enable roaming of users, the cellular ecosystem integrates many entities and procedures, including specific infrastructure to connect Mobile Network Operators (MNOs), business p…
MONROE-Nettest: A Configurable Tool for Dissecting Speed Measurements in Mobile Broadband Networks
Cise Midoglu, Leonhard Wimmer, Andra Lutu +2
As the demand for mobile connectivity continues to grow, there is a strong need to evaluate the performance of Mobile Broadband (MBB) networks. In the last years, mobile "speed", q…
Tracking the Big NAT across Europe and the U.S
Anna Maria Mandalari, Andra Lutu, Amogh Dhamdhere +2
Carrier Grade NAT (CGN) mechanisms enable ISPs to share a single IPv4 address across multiple customers, thus offering an immediate solution to the IPv4 address scarcity problem. I…