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Home Technology

Wi-Fi Version, Speed, Generation, Technologies Introduced and Year of Introduction

Vincent by Vincent
2022-04-07
in Technology
Reading Time: 4 mins read
Wi-Fi Version, Speed, Generation, Technologies Introduced and Year of Introduction

Wi-Fi to a great extent has enabled wireless internet on mobile and other devices that need to wirelessly connect to a local area network or the internet without the need for a bulky wired connection. Since its first introduction in 1997, it has seen faster adoption in many electronic gadgets and has become the defacto connection for mobile devices like laptops and smartphones among many others. Smartphones integrate Wi-Fi as the other alternative to connecting to the internet other than mobile broadband, there’s even a smartphone with Wi-Fi only as a way to connect to the internet. That’s CoolPad Arise. Connecting to the internet through  Wi-Fi needs a wireless access point that is connected to the internet through fiber optic cable, DSL, or any other means to an ISP (Internet Service Provider) for internet service provision.

Wi-Fi Alliance is a nonprofit organization and is the body responsible for standardization and controlling its uses and certification of products that have Wi-Fi in them. Companies become members of the body by contributing to its development and advancing it as they use the technology on the devices that they sell.

The latest standard is Wi-Fi 6, launched in September 2019, and the first smartphoneS with Wi-Fi 6 were Samsung Galaxy Note 10 and Rockus R750. You can learn more by visiting wifi.org. Wi-Fi Alliance over time has developed standards over time that aim to increase throughput through the reduction of latency and increasing speed and more technologies to improve Wireless internet.  T

Wi-Fi versions and specifications

IEEE StandardYearSpeed (Mbps)Technology introducedOperating FrequencyStatus
802.1119971-2
  • Diffuse infrared
  • Frequency-hopping spread spectrum
  • Direct-sequence spread spectrum
2.4 GHzObsolete
802.11a199954OFDM waveform5 GHzIn use
802.11b199911Improvement of 802.112.4GHzIn use
802.11g200354improvement of 802.11a2.4 GHzActively in use
802.11n (Wi-Fi 4)200954-600Addition of MIMO (Multiple Input, Multiple Output) Antennas to prior technologies2.4 GHz and 5 GHzActively in use
802.11ac (Wi-Fi 5)December 2013433.3-1300
  • Up to 8 Spatial streams
  • higher-order modulation – up to 256 QAM
  • MU-MIMO(Multi-User MIMO)
5 GHzActively in use
802.11ad20127000-8000Millimeter-wave30-300 GHzUsed in some applications
802.11af2014426.7-568.9Based on 802.11ac and used OFDMA54-790MHz 
802.11ah2017 Improves transmission range<1GHzOutdoor application and some large-scale sensor technologies
802.11ai––Faster initial link setup time– 
802.11aj––(Mostly used in China)45 GHzIn limited use
802.11aq––Allows pre-association discovery of services  
802.11ax (Wi-Fi 6)2019Up to 10,000Beam Formation
OFDMA (Orthogonal Frequency Division Multiplexing)
5 GHzSuccessor to 802.11ac
802.11ay–20,000Extension of 11ad60 GHzUnder development
802.11be––Focus on Extremely High Throughput (EHT)2.4 GHz, 5 GHz, and 6 GHzUnder development
802.11ax (Wi-Fi 6E)April 202010, 8006 GHz band opened up for Wi-Fi use
Wider channels
Low latency
Higher capacity
6GHzExtension of Wi-Fi 6
In use on newer devices

It is also worth noting that Wi-Fi is not an acronym of Wireless Fidelity as some people on the web claim.

Tags: AndroidiOSiPhoneWiFiWindows
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Vincent

Vincent

Vincent is the founder of ourphonestoday.com with over 5 years in wireless telecommunications IT support, and 3+ years investing in stocks, and the Forex market. He researches and writes about topics ranging from technology to business and the merger of the two with ways to make money on the internet. He's also passionate about photography and Videography.

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