20-03-2012, 11:21 AM
wifi
Jemin patel.ppt (Size: 455 KB / Downloads: 38)
WHAT IS WI-FI?
WI-FI is a trade-group certified wireless networking standard that relies on the IEEE 802.11a and 802.11b specification.
802.11b specification allows for the wireless transmission of approximately 11 mbps of raw data at indoor distances from several dozen to several hundred feet and outdoor distances of several to tens of miles as an unlicensed use of 2.4 ghz band.
The 802.11a specification uses 5Ghz band and can handle 54 mbps at typically shorter distances.
The distances for both standards depends on impediments,materials and line of sight.
WI-FI is an extension of ethernet,bringing the same principles to wireless communication.
WI-FI STANDARDS
1) 802.11:
This standard allows wireless connection up to 300 feet from an access point and can easily be added to existing wired networks with speeds up to 11 mbps.
2) 802.11a:
This provides a bigger pipe for data and supports more simultaneous users.
it can support up to 54 mbps.
COMPONENTS OF WI-FI
There are currently two types of components.
1) WI-FI radio devices
2) Access points or gateway that act as basestation.
A third type WI-FI equipped peripherals are emerging and will soon be commonplace.this group includes printers,scanner ,cameras etc.
ABOUT NETWORK
WHAT MAKES UP A WIRELESS NETWORK ?
Wi-Fi devices "connect" to each other by transmitting and receiving signals on a specific frequency of the radio band. Your components can connect to each other directly or through a gateway or access point. When you create your Wi-Fi network it will consist of two basic components: Wi-Fi radios and access points or gateways.
Jemin patel.ppt (Size: 455 KB / Downloads: 38)
WHAT IS WI-FI?
WI-FI is a trade-group certified wireless networking standard that relies on the IEEE 802.11a and 802.11b specification.
802.11b specification allows for the wireless transmission of approximately 11 mbps of raw data at indoor distances from several dozen to several hundred feet and outdoor distances of several to tens of miles as an unlicensed use of 2.4 ghz band.
The 802.11a specification uses 5Ghz band and can handle 54 mbps at typically shorter distances.
The distances for both standards depends on impediments,materials and line of sight.
WI-FI is an extension of ethernet,bringing the same principles to wireless communication.
WI-FI STANDARDS
1) 802.11:
This standard allows wireless connection up to 300 feet from an access point and can easily be added to existing wired networks with speeds up to 11 mbps.
2) 802.11a:
This provides a bigger pipe for data and supports more simultaneous users.
it can support up to 54 mbps.
COMPONENTS OF WI-FI
There are currently two types of components.
1) WI-FI radio devices
2) Access points or gateway that act as basestation.
A third type WI-FI equipped peripherals are emerging and will soon be commonplace.this group includes printers,scanner ,cameras etc.
ABOUT NETWORK
WHAT MAKES UP A WIRELESS NETWORK ?
Wi-Fi devices "connect" to each other by transmitting and receiving signals on a specific frequency of the radio band. Your components can connect to each other directly or through a gateway or access point. When you create your Wi-Fi network it will consist of two basic components: Wi-Fi radios and access points or gateways.