Cooperative control of 802.11ax access parameters in high density wireless LAN systems
Kenichi Kawamura, Akiyoshi Inoki, Shota Nakayama, Keisuke Wakao, Yasushi Takatori · 2019
This paper describes cooperative wireless LAN (WLAN) control methods we propose for high density environments, with the focus on IEEE 802.11ax WLAN systems. It also shows how they were evaluated by computer simulation. Two control schemes are proposed, the first of which optimizes spatial reuse parameters and access network selection. This scheme improves user equipment throughput 1.7 - 2.4 times in terms of throughput distribution (median value). The second scheme is for cooperatively scheduling trigger frames with hierarchical clustering. This scheme enables capacity to be improved by up to 11.3% when WLAN access points are deployed closely. These control schemes are potentially effective for IEEE 802.11ax WLAN systems utilized as 5G mobile network components.