3g - Wireless Communication Methods

3g - Wireless Communication Methods

1. Bluetooth

   • Has a range of 10 meters
   • Line of sight is not required
   • Currently 3Mbps on its own
     • Or 24Mbps using v3 or v4
   • Applications
     • Headset for mobile phones
     • Transferring files between phones
     • Using a laptop as a modem or transferring files
   • Advantages
     • Licence isn't required
     • Line of sight isn't required
     • Can use a pass-key
   • Disadvantages
     • Slow data transfer rate
     • Limited range
     • Only one connected device at a time

2. Radio

   • A protocol for wireless communication
     • 802.11b
     • 802.11g
     • 802.11n
   • Applications
     • Wireless laptops in an organisation
     • Wireless access in hotels, internet cafes etc.
     • Laptops/ computers in the home
     • Mobile phones/ tablets
     • Games Consoles
     • Printers
   • Advantages
     • No need for cables
     • Device not restricted by location
     • Line of sight not necessary
     • Compatible standards
   • Disadvantages
     • Restricted transfer rates for networks
     • Restricted range
     • Security issues