wireless

Traditional networks (......., ....... , .......)

• LAN,WEN,MAN

• NAW,LAN,MAN

• LAN,MEN,WAN

• LAN,MAN,WAN

TNC

Typical Frequencies of TV broadcast

• 88 MHZ

• 200 MHZ

• 900 MHZ

• 300 MHZ

Typical Frequencies of PCS PHONES

• 1.8 GHZ

• 1.7 GHZ

• 1.6 GHZ

• 1.9 GHZ

Typical Frequencies of GPS

• 1.1 GHZ

• 1.3 GHZ

• 1.2 GHZ

• 1.4 GHZ

.................... TRANSMISSION:- easily generated, Omni-directional , travel long distance , easily

penetrates buildings.

type of wireless system

• mobile system

• wireless pans

• wireless lans

• wireless system

..............................................:- widely used for long

distance communication , relatively inexpensive

• INFRARED AND MILIMETER WAVES

• MICROWAVE TRANSMISSION

• LIGHT WAVE TRANSMISSION

• LIGHT TRANSMISSION

..........................................................:- unguided optical signal

such as laser , unidirectional , easy to install , no license

required.

• INFRARED AND MILIMETER WAVES

• MICROWAVE TRANSMISSION

• LIGHT WAVE TRANSMISSION

• LIGHT TRANSMISSION

Each channel has a .................... frequency bandwidth &

capacity(bit rate)