Friday, April 8, 2011

WiFi - What is this?

What is WiFi and how does WiFi opus? Lots of inhabit are using WiFi tools and lots of them make sure of not answer on these questions.

WiFi - wireless fidelity refers to the wireless networks which habit 802.11 standard urbanized by the IEEE. WiFi or Wi-Fi is a make of the Wi-Fi Alliance. WiFi Alliance tests equipment of various WiFi vendors and issues a certification. If wireless consequence is WiFi certified at hand is an poise it acts according to the 802.11 principles.

There is moreover widely used label in lieu of WiFi set of connections and this is WLAN. WLAN - Wireless Local Area Network, or Wireless LAN is limited set of connections based on WiFi tools. So nowadays after you nowadays I beg your pardon? Is WiFi, lets observe absent how WiFi moving parts.

WLAN uses atypical IEEE principles in lieu of data move:

- 802.11a
- 802.11b
- 802.11g
- 802.11n

802.11a moving parts on the frequency of 5 GHz. Most of the wireless signals habit the 2.4GHz gang, so at hand is much greater opportunity in lieu of decreasing the strength of the gesture, since interference with other signals to facilitate moving parts on the same frequency. Speed used by this standard is 54Mbps and it is almost 5 period greater at that moment race of 802.11b standard.