Wireless

Why use it ?

There are no wires !

Has several significant advantages:

• No need to install and maintain wires.

  • Reduces cost - important in offices, hotels, ...

  • Simplifies deployment - important in homes, hotspots, ...

• Supports mobile users.

  • Move around office, campus, city, ... - users get hooked.

  • Remote control devices (TV, garage door, ...).

  • Cordless phones, cell phones, ...

  • WiFi, GPRS, WiMax, ...

Why is it hard ?

There are no wires !

Causes problems in many areas:

• Quality of transmission.

• Interference and noise.

• Capacity of the network.

• Effects of mobility.