IEEE 802.11ax (WiFi-6) High Efficiency (HE) Overview | WLAN (Wi-Fi) Explained, Part 14

Learn about the main advances in 802.11ax also known as high efficiency (HE) or WiFi-6. The introduction of orthogonal frequency division multiple access (OFDMA), smaller subcarrier spacing, the introduction of 1024-QAM, and more flexibility in frequency allocation (preamble puncturing) increase the efficiency of this WLAN revision.