Wi-Fi 6E is the latest Wi-Fi standard that adds support for the 6 GHz spectrum band in addition to the existing 2.4 GHz and 5 GHz bands. This allows for faster data transfer speeds and lower latencies. By introducing a new 6 GHz band, network congestion is reduced as more devices can transmit data through this less crowded frequency band, improving overall network performance. Wi-Fi 6E is currently the most advanced standard, but future standards like Wi-Fi 7 are being developed to provide even higher speeds of up to 4 times faster than current technologies.
2. Abstract
Wi-Fi 6e is the latest standard in the industry after Wi-Fi 6. This has
faster speeds and lower latencies than Wi-Fi 6 and earlier iterations. This
is obtained by adding a new band to the existing 2.4 GHz and 5 GHz,
which is the 6 GHz band. The band allows for speeds up to 1Gbps. Since
the spectrum uses shorter wavelengths, faster data transfer occurs. It
significantly reduces the traffic in a network.
3. Introduction (What exactly is Wi-Fi)
● Family of wireless network protocols, based on the IEEE 802.11
family of standards used for local area networking of devices and
Internet access.
● Introduced by the U.S Federal Communications Commission in 1985.
● Allows nearby digital devices to exchange data by radio waves.
● They are used globally in home and small office networks to link
computer systems to a wireless router to connect them to the
Internet.
4. How does Wi-Fi work ?
As the name suggests,
communication is wireless
(majority of comms.).
Wireless communication
happens between user’s
computer and a wireless
router by means of radio-
waves.
7. Wi-Fi 1
● The Standard IEEE 802.11b is referred as Wi-Fi 1.
● Wi-Fi 1 devices operate at 2.4 GHz frequency band.
● Wi-Fi-1 supports coverage distances of about 38 meters in indoor and
about 140 meters in outdoor environments.
8. Wi-Fi 2
● The Standard IEEE 802.11a is referred as Wi-Fi 2.
● Multi carrier modulation scheme i.e. OFDM has been introduced to
support high data rates unlike single carrier used in wifi-1.
● Wi-Fi 2 devices operate at 5 GHz frequency band.
9. Wi-Fi 3
● The Standard IEEE 802.11g is referred as Wi-Fi 3.
● The Wi-Fi 3 or 11g standard has been developed to support frequency
bands of both 11b and 11a standard based devices. It supports 2.4
GHz and 5 GHz frequency bands.
● It supports all the features as supported by 11a and 11b standards.
10. Wi-Fi 4
● The Standard IEEE 802.11n is referred as Wi-Fi 4.
● This is the Wi-Fi standard in which MIMO has been introduced.
Beamforming has been introduced but interoperabilities have not
been tested.
● Multiple Input Multiple Output – Uses multiple transmitters and
receivers to transfer more data at the same time.
● Beamforming – Focusing wireless signals to a specific receiving
device, rather than spreading the signals in all directions. (Used in 5G
technology as waves are not so strong and can be interrupted easily.)
11. Wi-Fi 5
● The Standard IEEE 802.11ac is referred as Wi-Fi 5.
● Beamforming has been added to the MIMO and multi-user MIMO
feature are also introduced. Wi-Fi 5 supports higher throughput due
to addition of higher bandwidths.
● Wi-Fi 5 operates at 2.4 GHz and 5 GHz frequency bands.
● It supports single user transmission as well as multi-user
transmissions much more efficiently than previous generations.
12. Wi-Fi 6
● The Standard IEEE 802.11ax is referred as Wi-Fi 6.
● It offers higher speeds and greater coverage
● Wi-Fi 6 operates at 2.4 GHz and 5 GHz frequency bands.
● OFDMA concept was introduced in both uplink and downlink
directions. It creates independently modulating subcarriers within
frequencies. This allows simultaneous transmissions to and from
multiple clients. This can be explained with an example.
17. Wi-Fi 6E (6 Extended)
Wi-Fi 6E adds support for 6 GHz spectrum, plus faster wireless speeds
and lower latencies. This simply means that there is now a new
frequency band of 6 GHz, which allows for faster data transfer rate. Until
WiFi 6, we had only upto two frequency bands (2.4 GHz and 5 GHz), but
this caused slowdown in the network as more and more devices
connected to the same network. By the introduction of a new 6 GHz
band, when more devices connect, data can be passed through this less
congested and faster band.
20. Future Scope
Wi-Fi 6E is the most advanced standard for wireless communications till
date, but there are newer standards being developed and tested such as
Wi-Fi 7. Wi-Fi 7 is said to be incredibly faster than the existing
generations of Wi-Fi (up to 4x faster). It will also provide multi-link
capability, that is, a device can connect to more than one network at a
time, so as to improve network connectivity.
