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WiFi 6 vs WiFi 7 | Difference between WiFi 6 and WiFi 7

This page compares WiFi 6 vs WiFi 7 and mentions similarities and difference between WiFi 6 and WiFi 7.

Introduction:
IEEE develops wifi standards which are specified in 802.11 series with suffix as b, g, n, ac, ax and be. WiFi alliance certifies the products developed as per these wifi standards. WiFi 7 is the future of wifi standard which is being designed to support real time applications of the future which include video streaming, wireless gaming, telemedicine, edge/cloud computing, AR/VR, industrial IoT, voice/video conferencing and so on.

What is WiFi 6 ?

WiFi 6 follows IEEE 802.11ax specifications which has been introduced in 2019. The standard has been rectified and wifi 6 based devices are commercially at this moment. The wifi 6 technology supports 40% faster data rate than its previous version wifi 5. It supports 2.4 GHz and 5 GHz frequency bands. The wifi 6E extends use of wifi in 6 GHz bands. The suffice "E" in "WiFi 6E" refers to "Extended".

advantages of wifi 6
Image Courtesy: Ruckus Networks

Following are the features of WiFi-6 technology.
• Higher modulation scheme up to 1024-QAM
• Long OFDM symbol
• MU-MIMO in UL/DL, 8 simultaneous MU-MIMO streams
• Beamforming and OFDMA technique
• Uplink scheduling without any contention
• BSS color codes
• Refer WiFi 6 tutorial >> and difference between WiFi 6 and WiFi 6E >> versions.

What is WiFi 7 ?

IEEE is developing wifi 7 specifications under the series 802.11be. It will support double bandwidth and higher spatial streams compare to 802.11ax version. WiFi 7 will support data rate as high as 40 Gbps. It is expected to be launched in the year 2024. It is being developed by IEEE 802.11be EHT working group.

The main features of WiFi 7 are as follows.
➨Coordinated Multi-user MIMO to support 16 data streams at the same time
➨Multi Link Operation (MLO) to enable simultaneous transmission and reception across various bands/channels. It increases throughput, lowers latency and improves reliability.
➨Access Point coordination
➨Supports maximum channel size up to 320 MHz
➨Supports higher modulation schemes up to 4096 QAM with enhanced OFDMA

Difference between Wifi 6 and Wifi 7

Following table uses various parameters to derive similarities and difference between Wifi 6 and Wifi 7 technologies.

Features WiFi 6 and WiFi 6E WiFi 7
• Standard IEEE 802.11ax IEEE 802.11be
• Launch date 2019 (WiFi 6), 2021 (WiFi 6E) 2024
• Data rate (Maximum) 9.6 Gbps 46 Gbps
• Frequency Bands 2.4 GHz, 5 GHz , 6 GHz (supported by WiFi 6E) 1 to 7.25 GHz (Includes all the three bands viz. 2.4, 5 and 6 GHz)
• Security WPA 3 WPA 3
• Channel Size 20, 40, 80, 80+80, 160 MHz Up to 320 MHz
• Modulation 1024 QAM with OFDMA 4096 QAM with OFDMA (extensions)
• MIMO Supports MU-MIMO i.e. Multi-User MIMO, Eight data streams simultaneously Supports CMU-MIMO i.e. Coordinated Multi-User MIMO, 16 data streams on all three frequencies simultaneously.

References : IEEE, WiFi Alliance, Intel Corporation.


Refer advantages or benefits of WiFi 7 technology >>.

WiFi 6 Resources as per IEEE 802.11ax

Advantages and disadvantages of 802.11ac (WiFi 5)   Advantages and disadvantages of 802.11ax (WiFi 6)   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  

Useful Links to Legacy WLAN Standards

WLAN SIFS, PIFS, DIFS, EIFS, AIFS    What is DCF and PCF in WLAN    What is RTS and CTS in WLAN    What is wlan?    WLAN standards-11a,11b,11g,11n,11ac    11a WLAN Physical layer    11b WLAN Physical layer    11n WLAN Physical layer    WLAN basic tutorial    802.11ac tutorial    802.11ad tutorial    Difference between 11a,11b,11g,11n    Difference between 11-n,11-ac and 11-ad   WLAN router providers    WLAN providers   

5G cellular resources

5G basic tutorial   5G Frequency Bands   5G millimeter wave tutorial   5G mm wave frame    5G millimeter wave channel sounding    Difference between 4G and 5G   5G testing and test equipments   5G network architecture   5G NR Physical layer    5G NR MAC layer    5G NR RLC layer    5G NR PDCP layer   

What is Difference between

Difference between OFDM and OFDMA    Difference between SC-FDMA and OFDM    Difference between SISO and MIMO    Difference between TDD and FDD    FDMA vs TDMA vs CDMA    FDM vs TDM    CDMA vs GSM   

IoT Wireless Technologies

WLAN    ➤THREAD    ➤EnOcean    ➤LoRa    ➤SIGFOX    ➤WHDI    ➤Zigbee   ➤6LoWPAN   ➤Zigbee RF4CE   ➤Z-Wave   ➤NFC   ➤RFID   ➤INSTEON  

RF and Wireless Terminologies


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