12 papers
Is Collision-Free Backoff Worth It in Wi-Fi?
Mohammad Yousefi, Francesc Wilhelmi, Boris Bellalta
The Distributed Coordination Function (DCF)---the underlying channel access protocol in Wi-Fi, based on Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) and Binary…
On the Allocation of Transmit Power for Coordinated Spatial Reuse in IEEE 802.11bn Multi-Access Point Coordination
Francesc Wilhelmi, Boris Bellalta
IEEE 802.11bn (11bn) introduces Coordinated Spatial Reuse (Co-SR), a Multi-Access Point Coordination (MAPC) scheme where two APs coordinate to control the transmit power for a simu…
Can Machine Learning Break Wi-Fi Privacy? A Study on MAC Address Randomization
Marta Puig, Costas Michaelides, Lucia Pintor +2
Medium Access Control (MAC) address randomization has been widely adopted during the IEEE 802.11 network discovery phase as a countermeasure against passive tracking. This paper ex…
BRAVR: An AP-Assisted Online DRL Mechanism for Interactive VR Bitrate Adaptation over Wi-Fi
Miguel Casasnovas, Francesc Wilhelmi, Boris Bellalta
Interactive virtual reality (VR) streaming over Wi-Fi requires stringent latency and reliability guarantees, which become increasingly difficult to achieve under dynamic channel co…
A Tutorial on IEEE 802.11bn Multi-AP Coordination for Wi-Fi 8: From Standardization to Performance Evaluation
Francesc Wilhelmi, Boris Bellalta, Giovanni Geraci +5
The IEEE 802.11bn amendment defines significant modifications to the standard by establishing Ultra High Reliability (UHR) targets in Wireless Local Area Networks (WLANs). This is…
Studying the Role of Synthetic Data for Machine Learning-based Wireless Networks Traffic Forecasting
José Pulido, Francesc Wilhelmi, Sergio Fortes +3
Synthetic data generation is an appealing tool for augmenting and enriching datasets, playing a crucial role in advancing artificial intelligence (AI) and machine learning (ML). No…
"It's Your Turn": A Novel Channel Contention Mechanism for Improving Wi-Fi's Reliability
Francesc Wilhelmi, Lorenzo Galati-Giordano, Gianluca Fontanesi
The next generation of Wi-Fi, i.e., the IEEE 802.11bn (aka Wi-Fi 8), is not only expected to increase its performance and provide extended capabilities but also aims to offer a rel…
Continuous Multi-Link Operation: A Contention-Free Mechanism for the Unlicensed Spectrum
Gianluca Fontanesi, Francesc Wilhelmi, Lorenzo Galati-Giordano
This paper proposes a novel mechanism to enforce contention-free channel access in the unlicensed spectrum, as opposed to the traditional contention-based approach. To achieve this…
Distributed Learning for Wi-Fi AP Load Prediction
Dariush Salami, Francesc Wilhelmi, Lorenzo Galati-Giordano +1
The increasing cloudification and softwarization of networks foster the interplay among multiple independently managed deployments. An appealing reason for such an interplay lies i…
ConPA: A Contention-free Mechanism with Power Adaptation for Beyond Listen-Before-Talk
Francesc Wilhelmi, Paolo Baracca, Gianluca Fontanesi +1
In view of the need to find novel means to utilize the unlicensed spectrum to meet the rising latency and reliability requirements of new applications, we propose a novel mechanism…
AI/ML-based Load Prediction in IEEE 802.11 Enterprise Networks
Francesc Wilhelmi, Dariush Salami, Gianluca Fontanesi +2
Enterprise Wi-Fi networks can greatly benefit from Artificial Intelligence and Machine Learning (AI/ML) thanks to their well-developed management and operation capabilities. At the…
TXOP sharing with Coordinated Spatial Reuse in Multi-AP Cooperative IEEE 802.11be WLANs
David Nunez, Francesc Wilhelmi, Stefano Avallone +2
IEEE 802.11be networks (aka Wi-Fi 7) will have to cope with new bandwidth-hungry and low-latency services such as eXtended Reality and multi-party cloud gaming. With this goal in m…