What is 802.11ax?

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Raghav Kapur - everything RF

Feb 6, 2018

802.11ax or High-Efficiency Wireless (HEW) is the successor to 802.11n. This next-generation WLAN standard has been developed to improve average data throughput up to 4x in locations with high user densities, such as offices, sports stadiums, rail stations, etc. This standard is currently under review by the IEEE 802.11ax Task Group (TG), and is expected to be operational in 2019. The IEEE 801.11ax standard is should see widespread adoption by smartphones, tablets, AR/VR equipment and automotive sectors.

Key Features of 802.11ax:
  • It is backwards compatible with 802.11a/b/g/n/ac.
  • It will increase data throughput up to 4x in locations with high user densities.
  • The data rates and channel widths are similar to 802.11ac, with new Modulation and Coding Sets (MCS 10 and 11) with 1024-QAM.
  • It uses MU-MIMO and Orthogonal Frequency Division Multiple Access (OFDMA) technology for downlink and uplink multi-user operation.
  • It provides better power management for longer battery life.