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Wifi 6 the subtle change for big Revolution

  • July 30, 2020
  • Anu Singh
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WiFi 6 is the newest WiFi specification standard, and it also known as IEEE 802.11ax, IEEE stands for the Institute of Electrical and Electronics Engineers.

This is the next generation of the WiFi standard. WiFi 5 (IEEE 802.11ac), released in 2014, and It’s now being replaced by a new version of the standard, Wi-Fi 6 (IEEE 802.11ax). This is not just a simple speed boost. Its impact will be more granular, and we are likely to see more and more of its benefits over time.

WHAT IS WIFI 6 ?

IEEE proposed the WiFi 6 (802.11ax) standard so that it could combine the independence and high speed of Gigabit Ethernet wireless with reliability and predictability in licensed radios.

It’ll not do any other thing, it will still do the same basic thing which connect you to the internet, a bunch of additional technologies to make that happen more efficiently, speeding up connections in the process.

HOW MUCH FASTER IS WIFI 6?

wifi 6

WiFi 6 or 802.11ax provides theoretical speeds of up to 10Gbps, although one main goal of the standard is to improve Wi-Fi with multiple devices. There are some fundamental changes to the way Wi-Fi 6 works.

• The standard improved the no. of bits that can be broadcasted at the same time. Wi-Fi uses a technique known as quadrature amplitude modulation (QAM). Wi-Fi 5 uses 512-QAM, which allows the system to broadcast 8 bits at once; Wi-Fi 6 uses 1024-QAM, which allows 10 bits to be transmitted at the same time. This provides a speed improvement of 25%.

• Next, Orthogonal Frequency Division Multiple Access (OFDMA) is a magical feature in the Wi-Fi 6 standard. OFDMA takes a Wi-Fi channel and breaks a channel into smaller frequency allocations known as resource units (RUs). This enables an AP (access points) to communicate with multiple clients by assigning them to specific RUs and each client gets its own dedicated bit of bandwidth. 

• The Wi-Fi 5 standard introduced optional MU-MIMO, but only for downloads. Now with the 802.11ax standard, we see even more improvements to MU-MIMO and Wi-Fi 6 makes the technology bi-directional. 

• Power saving has been improved with Wi-Fi 6 thanks for target wake time. With this technology, clients and routers can schedule when regular communication can occur. For devices that have to be checked periodically, such as smart sensors, this saves battery life, as the device only needs to communicate at a set time; With the older system, the device would need to wake up, try and transmit but if the Wi-Fi network was in use, try again.

IS IT WORTH UPGRADING TO WIFI 6?

wifi 6

Yes, if you have an older router, you Should Consider upgrading to a WiFi 6 router, especially since the prices have come down, and new phones will likely support the technology. 

• The newest WiFi standard, WiFi 6 (802.11ax) provides the highest level of performance in busy multi-device households. It uses OFDMA, that increases overall network efficiency to allow multiple devices with different bandwidth requirements to connect to your WiFi. 

• It provides the fastest speeds and range. 

• It is designed for the Smart Home. 

• WiFi 6 routers are ideal for 4K or 8K UHD streaming. 

IS ETHERNET BETTER THAN WIFI 6?

If you do not want to deal with cable management, WiFi 6 is better than Ethernet, which offer maximum speeds of 1200 Mb/s and it has become good enough to handle most of our daily tasks. Ethernet is just plain faster than Wi-Fi 6. If you want a consistent data transfer rate without external interference then ethernet is better than WiFi 6. 

See Also : What song is this? BEST 5 MUSIC RECOGNITION APPS of 2020

WHAT ARE THE BENEFITS OF WI-FI 6?

Wifi 6

• Higher data rates with peak Gigabit speeds.

• Wi-Fi 6 can provide increased capacity with reduced latency to support higher numbers of users and devices, . 

• High performance levels in the most dense environments with many connected devices. 

• Improved power efficiency and More robust outdoor network operations. 

• Lower battery consumption in Wi-Fi 6 (802.11ax) devices supported by Wi-Fi 6 (802.11ax) networks. 

• Increased efficiency and lower latency with OFDMA uplink and downlink digital modulation scheme.

TABLE 1 : COMPARING WI-FI 5 AND WI-FI 6 STANDARDS

Wi-Fi 5(802.11ac)Wi-Fi 6( 802.11ax)
5GHz2.4 and 5.0 GHz
20, 40, 80+80, 160MHz20, 40, 80+80, 160MHz
OFDMOFDMA
MU-MIMO (4×4)MU-MIMO (8×8)
256QAM1024QAM
3.5 Gb/s9.6 Gb/s
48

Now you got a basic idea about the WiFi 6, but if you have any questions regarding WiFi 6, let me know in the comments section! 

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Anu Singh

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