Which of the following are PHY technologies specifically used by 802.11ax?
B. OFDMA
C. 1024-QAM
IEEE 802.11ax Work in 2.4 GHz or 5 GHz unlicensed bands, and the goal is to achieve efficient WLANs in high-dense deployment scenarios. The PHY introduces OFDMA, UL MU-MIMO, 1024-QAM and dual carrier modulation (DCM) technologies, and further enhances the CB technology.