Wireless networks

Wireless networks

1. Types of wireless networks

   • WPAN: Wireless Personal Area Network
   • WLAN: Wireless Local Area Network
   • WMAN: Wireless Metropolitan Area Network
   • WWAN: Wireless Wide Area Network

2. Types according to frecuence range

   • Terrestial microwaves
   • Satellite microwaves
   • Infrared

3. Apps

   • Most important
     • VLF
     • LF
     • MF
     • HF
     • VHF
     • UHF
   • Terrestrial microwaves
     • Bluethooth
     • ZigBee
   • Satellite
     • For television broadcasting
   • Infrared
     • IrDa

4. Safety

   • Radio waves
     • Employ directional antennas
   • Authentication mechanism
     • Client verifying that is conecting to the correct network
     • Network verifying that the client is authorized to access it
   • Data
     • It must be encrypted through the air