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802.11ac vs 802.11ax-Difference between 802.11ac,802.11ax

This page compares WLAN 802.11ac vs 802.11ax and mentions difference between 802.11ac and 802.11ax.

WLAN 802.11ac

This WLAN standard is successor to IEEE 802.11n. It supports high throughput due to addition of higher bandwidths, multi-user MIMO, higher number of spatial streams and higher number of modulation schemes such as 256 QAM.
WLAN 802.11ac basics➤

WLAN 802.11ax

802.11ax features and advantages
Image Courtesy: Ruckus Networks

This WLAN standard is successor to IEEE 802.11ac. In addition to higher speed, 802.11ax offers greater coverage range compare to legacy wifi networks such as 802.11a/g/n/ac.

It has advanced features such as downlink and uplink OFDMA, Uplink resource scheduling without any contention unlike 802.11ac, MU-MIMO (DL and UL), Long OFDM symbol, higher modulation scheme (1024-QAM), More spatial streams (up to 8), support for 2.4 GHz and 5 GHz both, BSS coloring etc.
WLAN 802.11ax basics, advantages and disadvantages➤

Difference between 802.11ac and 802.11ax

Specifications 802.11ac 802.11ax
Frequency Bands 5 GHz 2.4 GHz, 5 GHz
Channel Bandwidths 20 MHz, 40 MHz, 80+80 MHz, 160 MHz 20 MHz, 40 MHz, 80 MHz, 80+80MHz, 160 MHz
FFT sizes 64, 128, 256, 512 256, 512, 1024, 2048
Subcarrier spacing 312.5 KHz 78.125 KHz
OFDM symbol duration 3.2µs + 0.8/0.4 µs CP 12.8µs + 0.8/1.6/3.2µs CP
Modulation scheme (highest) 256 QAM 1024 QAM
Data rates 433 Mbits/sec(with 80 MHz and 1 Spatial Streams(SS) )
6.933 Gbits/sec (with 160MHz, 8 SS)
600.4 Mbits/sec (with 80 MHz, 1 SS)
9.6078 Gbits/sec (with 160 MHz, 8 SS)

WLAN 802.11ac and 802.11ax related links

advantages and disadvantages of 802.11ac
advantages and disadvantages of 802.11ax
BSS coloring in 11ax
RU in 802.11ax
MU-OFDMA in 802.11ax
MU-MIMO in 802.11ax
Difference between 802.11ac Wave1 and Wave2
Difference between 802.11n,11ac,11ad
WLAN 802.11ac tutorial
WLAN 802.11ax tutorial
WLAN 802.11ac frame structure
WLAN 802.11ac Physical Layer
802.11ac MAC Layer
802.11ax basics
WLAN 11a,11b,11n,11ac frame structures

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