Wi-Fi is a trademark of the Wi-Fi Alliance that manufacturers may use to brand certified products that belong to a class of wireless local area network (WLAN) devices based on the IEEE 802.11 standards, which is by far the most widespread WLAN class today. Because of the close relationship with its underlying standard, the term Wi-Fi is often used as a synonym for IEEE 802.11 technology.
The Wi-Fi Alliance, a global association of companies, promotes WLAN technology and certifies products if they conform to certain standards of interoperability. Not every IEEE 802.11-compliant device is submitted for certification to the Wi-Fi Alliance, sometimes because of costs associated with the certification process. The lack of the Wi-Fi logo does not necessarily imply a device is incompatible with Wi-Fi devices.
Also wi fi occures as console to console.Most people mistaken it by beleiving another console to console which has another name
As of 2010, IEEE 802.11 devices are installed in many personal computers, video game consoles, smartphones, printers, and other peripherals, and virtually all laptop or palm-sized computers.[update]
How it works ?
Wi-Fi uses both single-carrier direct-sequence spread spectrum radio technology (part of the larger family of spread spectrum systems) and multi-carrier orthogonal frequency-division multiplexing (OFDM) radio technology. The deregulation of certain radio-frequencies for unlicensed spread spectrum deployment enabled the development of Wi-Fi products, Wi-Fi's onetime competitor HomeRF, Bluetooth, and many other products such as some types of cordless telephones.
Where It is used ?
A Wi-Fi enabled device such as a personal computer, video game console, mobile phone, MP3 player or personal digital assistant can connect to the Internet when within range of a wireless network connected to the Internet. The coverage of one or more (interconnected) access points — called hotspots — can comprise an area as small as a few rooms or as large as many square miles. Coverage in the larger area may depend on a group of access points with overlapping coverage. Wi-Fi technology has been used in wireless mesh networks
So how to Increase Wi-Fi Connectivity ?
Like set-top boxes, Wi-Fi connections are also an investment, so why not get maximum returns or benefits. With some simple tips, new hardware, you could extend your Wi-Fi connectivity’s range to cover your entire house or office.
Upgrade your network
Though heavy on pocket, the new 802.11n router scores on better speed, stability and range than 802.11b or g. Upgrading to 802.11n will help make your signal stronger and more reliable in every room, plus you’ll experience faster through put all around.
Try a Range Extender or Repeater
A lot of options are available in the market. However, it’s best if you select an extender of the same company as that of your router. Check out for high gain antennas as a replacement for the little ones on your router. They’re worth a try.
Right positioning
Wi-Fi signals are blocked by thick metal and concrete, so try picking the router up off the floor and putting it on a table or mounting it on the wall. Pulling the router out from behind your TV or entertainment center can also boost the signal dramatically. Experiment by watching, your Wi-Fi client’s signal meter to see if something helps.
Antenna tricks
Orienting your antennas differently can offer descent results with minimal effort. Experiment to see what works best.
Change channels
Most routers default to channel 1, 6 or 11, but if your neighbours are all on channel 6, then you might be seeing slow speed and lower range due to interference. Try one of the other channels.
For this, you’ll need to get into your router’s management screen, either through an installed application or by typing the IP address of the router into a web browser. You’ll find a ‘Wireless Channel’ (or similar) setting in the wireless configuration portion of your router.
You can start with 1, 6, and 11, but other channel numbers are worth try as well. If you see a sudden drop in range or speed, try a new channel.
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