||Mesh networks, which can be easily constructed by distributing
nodes only, are used as emergency communication networks.
The wireless mesh networks employ a wireless local area network, IEEE 802.11, which uses an unlicensed frequency band.
IEEE 802.11ac supports forward-link (downlink) MU-MIMO and can improve transmission
IEEE 802.11ax, which is under standardization following 802.11ac,
applies reverse-link (uplink) MU-MIMO, and can result in further
improvement of efficiency.
The purpose of this paper is to investigate the performance of wireless mesh networks
We use area transmission efficiency as an evaluation index, where the area transmission
efficiency indicates the number of packets in a unit area, and evaluate
a geometrical data rate considering a carrier sense region and an interfere region.
In addition, the results show the difference in the performances
between forward- and reverse-link MU-MIMO according to the traffic
in the network.