At CES 2017, it is expected the appearance of the first devices that support Wi-Fi 802.11 ax
Wireless technology Wi-Fi is continually evolving. Although the adoption of Wi-Fi standard 802.11 ax is expected only after a year or two, the first devices that support it, can be seen at CES 2017.
The main innovation in 802.11 ax — support for MU-MIMO 8×8 in the 2.4 GHz and 5 GHz. This four fold increase in network capacity compared to 802.11 ac. In addition to simultaneous support for more devices, this will help to improve coverage.
The advantages of 802.11 ax also includes an improved mechanism for capacity allocation. In this sense, access point Wi-Fi will be more like the base stations of cellular networks. OFDMA Protocol is used in 802.11 ax, allows independent control of the channels allocated for reception and transmission, and support for encoding to 1024 QAM and OFDM long symbols allows to increase the useful width of the channels.
Source: CDR info