Two years from now, streaming video will comprise 82% of all Internet traffic. In terms of bytes transmitted, this represents a 4x increase over 2016.
The key technology behind 802.11ax, OFDMA, comes from 3GPP LTE cellular technology and 802.16e WiMax. OFDMA (orthogonal frequency division multiple access) supports higher density wireless networks by subdividing the carriers into groups of 26 sub-carriers, the smallest unit of which uses 2 MHz of frequency. For each transmission time, OFDMA dynamically selects the best combination of packet sizes to bundle together.