Literature Database Entry

wojnar2025coordinated

Maksymilian Wojnar, Wojciech Ciezobka, Artur Tomaszewski, Piotr Chołda, Krzysztof Rusek, Katarzyna Kosek-Szott, Jetmir Haxhibeqiri, Jeroen Hoebeke, Boris Bellalta, Anatolij Zubow, Falko Dressler and Szymon Szott, "Coordinated Spatial Reuse Scheduling With Machine Learning in IEEE 802.11 MAPC Networks," IEEE Journal on Selected Areas in Communications, 2025. (to appear)

Abstract

The densification of Wi-Fi deployments means that fully distributed random channel access is no longer sufficient for high and predictable performance. Therefore, the upcoming IEEE 802.11bn amendment introduces multi-access point coordination (MAPC) methods. This paper addresses a variant of MAPC called coordinated spatial reuse (C-SR), where devices transmit simultaneously on the same channel, with the power adjusted to minimize interference. The C-SR scheduling problem is selecting which devices transmit concurrently and with what settings. We provide a theoretical upper bound model, optimized for either throughput or fairness, which finds the best possible transmission schedule using mixed-integer linear programming. Then, a practical, probing-based approach is proposed which uses multi-armed bandits (MABs), a type of reinforcement learning, to solve the C-SR scheduling problem. We validate both classical (flat) MAB and hierarchical MAB (H-MAB) schemes with simulations and in a testbed. Using H-MABs for C-SR improves aggregate throughput over legacy IEEE 802.11 (on average by 80% in random scenarios), without reducing the number of transmission opportunities per station. Finally, our framework is lightweight and ready for implementation in Wi-Fi devices.

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Maksymilian Wojnar
Wojciech Ciezobka
Artur Tomaszewski
Piotr Chołda
Krzysztof Rusek
Katarzyna Kosek-Szott
Jetmir Haxhibeqiri
Jeroen Hoebeke
Boris Bellalta
Anatolij Zubow
Falko Dressler
Szymon Szott

BibTeX reference

@article{wojnar2025coordinated,
    author = {Wojnar, Maksymilian and Ciezobka, Wojciech and Tomaszewski, Artur and Chołda, Piotr and Rusek, Krzysztof and Kosek-Szott, Katarzyna and Haxhibeqiri, Jetmir and Hoebeke, Jeroen and Bellalta, Boris and Zubow, Anatolij and Dressler, Falko and Szott, Szymon},
    note = {to appear},
    title = {{Coordinated Spatial Reuse Scheduling With Machine Learning in IEEE 802.11 MAPC Networks}},
    journal = {IEEE Journal on Selected Areas in Communications},
    issn = {0733-8716},
    publisher = {IEEE},
    year = {2025},
   }
   
   

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Last modified: 2025-06-24