30-12-2010, 05:01 PM
Wi-Fi Applications.pptx (Size: 279.57 KB / Downloads: 139)
Wi-Fi Applications
Internet access
Campus-wide Wi-Fi
Carnegie Mellon University, Pittsburgh, in 1994
City-wide Wi-Fi
city-wide free Wi-Fi cities are Sunnyvale and California (in 2005)
Direct computer-to-computer communications
Wi-Fi LAN
Future directions
Advantages
Completely wire free.
places where cable cannot run.
Ease of installation.
Uses unlicensed radio spectrum.
Not required regulatory approval for individual deployers.
Availability of product in the market.
Low cost.
Support mobility.
Support roaming.
Set of global standards.
any standard Wi-Fi device will work anywhere in the world.
Protect traffic from interception
Disadvantages
Interference from devices having 2.4 GHz.
High power consumption.
Limited range of networks.
Spectrum assignments and operational limitations are not consistent worldwide.
Data security risks.