WIRELESS NETWORK

WIRELESS STANDARDS:
• Radia signal freq to communicate .wlan,wifi
• First WLAN standard 802.11a: by IEEE (1997)
• Present days standards :802.11n,802.11ac

WIRELESS SIGNALS:
• ElectroMagnetic waves travelling through air
• Two types :(a) 2.4 GHz => lower feq,used commonly,crowded,interfered
11 channels
(b) 5 GHz = > higher freq ,achieve higher speeds. Shorter

WIRELESS ANTENNAS:
• Omnidirectional :all directions
• Directional