On the performance of the spatial reuse operation in IEEE 802.11ax WLANs

Wilhelmi Roca, Francesc; Barrachina Muñoz, Sergio; Bellalta, Boris

doi:http://dx.doi.org/10.1109/CSCN.2019.8931315

On the performance of the spatial reuse operation in IEEE 802.11ax WLANs

Citation

Wilhelmi F, Barrachina-Muñoz S, Bellalta B. On the performance of the spatial reuse operation in IEEE 802.11ax WLANs. In: Proceedings of the IEEE Conference on Standards for Communications and Networking (CSCN); 2019 Oct 28-30; Granada, Spain. New Jersey: IEEE; 2019. DOI: 10.1109/CSCN.2019.8931315

Abstract

The Spatial Reuse (SR) operation included in the IEEE 802.11ax-2020 (11ax) amendment aims at increasing the number of parallel transmissions in an Overlapping Basic Service Set (OBSS). However, many unknowns exist about the performance gains that can be achieved through SR. In this paper, we provide a brief introduction to the SR operation described in the IEEE 802.11ax (draft D4.0). Then, a simulation-based implementation is provided in order to explore the performance gains of the SR operation. Our results show the potential of using SR in different scenarios covering multiple network densities and traffic loads. In particular, we observe significant improvements on the channel utilization when applying SR with respect to the default configuration, thus allowing to increase the throughput and reduce the delay. Interestingly, the highest improvements provided by the SR operation are observed in the most pessimistic situations in terms of network density and traffic load.

Description

Comunicació presentada a: Proceedings of the IEEE Conference on Standards for Communications and Networking (CSCN) celebrat del 28 al 30 d'octubre a Granada, Espanya.