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What Is WiFi Technology?

Wifi is a popular technology used all around the globe. This article will tell you briefly about it.

WiFi is the name of a popular wireless networking technology that uses radio waves to provide wireless high speed internet and network connections.What is wifi technology

It’s great if you are already a “Wi-Fi Literate” but there are decent chances that you may still be confused about ‘Wi-Fi’ and what all it can do for the end consumers.

Most of us know “Wi-Fi” as something that lets us access internet without physically connecting to the LAN. But there’s a more to it.

Below are some basic facts and pieces of information related to Wi-Fi which will help you understand Wi-Fi much better and easier.

1. Wi-Fi is a wireless technology (following IEEE 802.11 standard) that lets digital devices such as PC,laptop,mobile phones to connect and access internet through a router without any physical association with the wired network(LAN).Interestingly,’Wireless Fidelity’,as such does not mean anything.It was actually a branding strategy by the governing Alliance to make their service a bit more catchy and “Hi-Fi”.

2. “Wi-Fi” was termed by  Wi-Fi Alliance,which takes the responsibility of overseeing tests that certify product interoperability. A product that passes the alliance tests is given the label “Wi-Fi certified“.

3. Wi-Fi hotspots are the access points through which wireless internet is accessed.Restaurants,coffee-shops,food joints offer free hotspots within their premises as a mode of attraction.More hotspots correspond to more coverage and heavy usage support(higher bandwidth support).

4. To establish a Wi-Fi connectivity,the two primary conditions are Wireless adapter at user’s end(within the laptop or PC) and a Wi-Fi router(externally placed).Most of new laptops and desktop computers come with built-in wireless adapter.

5. Wi-Fi networks are very limited in range.A typical Wi-Fi router might have a range of 30 m(~100 ft) indoor and 90 m(295 ft) outdoor.Range also varies with selected frequency band.Wi-Fi in the 2.4 GHz frequency band has slightly better range than Wi-Fi in the 5 GHz frequency band.

6. Wi-Fi is much more prone to security abuse than wired LAN.As the level of openness is quite high,Wi-Fi’s encryption methods face continuous failure in front of easily available softwares such as Aircrack.This is the reason why private Wi-Fi networks prefer employing ‘Whitelist IP Usage’ only.

7. There are future plans to turn entire cities such as San Francisco,Philadelphia and few others into big wireless hotspots.The Wi-Fi services will either be free(ad-supported) or subscription based.

8. Cities like San Francisco(U.S.) and Hong Kong(Asia) are even running buses with free and fully operational Wi-Fi services.

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  2. satwik

    September 30, 2009 at 7:48 am

    The information given above is finely furnished and gives the basic facts
    and basic uses of wi-fi technology hope we will have many more articles like this……

  3. hce1983

    November 17, 2009 at 2:46 am

    dear sir,
    please i am need to know what the range( maximum distance) in meters

    in WI-FI,and in WI-MAX?

    • Prashant Sharma

      November 17, 2009 at 8:19 am

      In case of Wi-Fi, the max. coverage doesn’t exceed 50-100mtrs. (except ideal conditions). In case of WiMax, the max. distance can go upto 30 miles(in ideal conditions). The practical coverage plots are dependent on geography, vegetation..etc

  4. Zeus

    May 9, 2010 at 1:24 am

    what are the future challenges for Wifi?
    How can Wifi and Wimax work together?? thought both ae entirely two different network can they work together?

  5. Debbie M

    June 26, 2010 at 4:19 pm

    Does the difference between 150mps and 300mps in wireless routers refer only to range or also to applications being used at the same time?

    For example, I want to be able to surf the internet on desktop while at the same time watching a Netflix movie on laptop.

    Debbie M.

  6. Tech Info

    July 8, 2010 at 7:30 am

    what are the future challenges for Wifi?
    How can Wifi and Wimax work together?? thought both ae entirely two different network can they work together?

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