ANALYTICAL REVIEW OF INNOVATIONS

OF THE IEEE 802.11AX STANDARD

Dmitry A. Tyukhtyaev

Senior Lecturer, Department of Telecommunications Systems,

Volgograd State University

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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation

Dmitry A. Morozov

Student, Department of Telecommunications Systems,

Volgograd State University

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Prosp. Universitetsky, 100, 400062 Volgograd, Russian Federation

Abstract. Nowadays, due to the rapid development of small-scale wireless networks, the increase in the 
amount of the traffic consumption (due to the pandemic and the transfer of employees to remote work), the 
increase in the number of wireless devices and the requirements for the bandwidth of communication channels
and different delays arising in them, characteristics of the 802.11ac standard the bandwidth described in this 
standard were no longer enough. To eliminate these shortcomings, the IEEE 802.11ax standard was introduced
in 2019, and finally approved on February 1, 2021. This standard is commercially known as Wi-Fi 6. In the 
802.11ax standard, developers focused on energy efficiency, capacity and bandwidth of the communication 
channel. Improving these parameters resulted in a quadruple increase in the average throughput per user and 
improved customer experience. These improvements are relevant for both external and internal subscribers. 
The article presented new technologies used in the IEEE 802.11ax (Wi-Fi 6) standard, such as MU-MIMO, 
OFDMA, Color Code BSS and Beamforming. MU-MIMO allows providers to simultaneously transmit different 
data to multiple subscriber stations. OFDMA technology allows providers to increase the bandwidth of the 
communication channel. The Color Code BSS technology allows us to identify the network as a “friend” or a 
“foe” when exchanging data between the router and other devices within the 802.11ax standard Wi-Fi network.
Key words: Wi-Fi 6, MU-MIMO, 802.11ax, Beamforming, OFDMA.

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