What’s Wi-Fi ac?
IEEE 802.11ac is a wireless network standard of 802.11 family, It was formulated by the IEEE Standards Association and provides high-throughput wireless local area networks (WLANs) through the 5GHz band, commonly called as 5G Wi-Fi (5th Generation of Wi-Fi).
Theory, it can provide a minimum of 1Gbps bandwidth for multiple-station wireless LAN communication, or a minimum transmission bandwidth of 500Mbps for a single connection.
802.11ac is the successor of 802.11n. It adopts and extends the concept of air interface derived from 802.11n, including: wider RF bandwidth (up to 160MHz), more MIMO spatial streams (up to 8), downlink multi-user MIMO (up to 4), and high-density modulation (up to 256-QAM).
What’s Wi-Fi ax?
IEEE 802.11ax (Wi-Fi 6) is also known as High-Efficiency Wireless(HEW).
IEEE 802.11ax supports 2.4GHz and 5GHz frequency bands and is backward compatible with 802.11 a/b/g/n/ac. The goal is to support indoor and outdoor scenarios, improve spectrum efficiency, and increase actual throughput by 4 times in dense user environments.
Wi-Fi ax main features:
- Compatible with 802.11 a/b/g/n/ac
- 1024-QAM
- Upstream and downstream OFDMA
- Upstream MU-MIMO
- 4 times OFDM symbol duration
- Adaptive Idle Channel Assessment
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