Wireless networking technology uses wireless stations like computers or devices with radios to transmit and receive data without wires. There are two main types of wireless networks: infrastructure networks with an access point that devices connect to and ad-hoc peer-to-peer networks without an access point where devices connect directly. Wireless networks use radio frequencies and transmission methods like frequency hopping spread spectrum or direct sequence spread spectrum to transmit data over the air. Newer standards are developing technologies like MIMO that use multiple antennas to improve wireless network performance and speeds.

1. Wireless networking technology By Abbas Izadpanah January 2007

13. Wireless pc Wireless pc Wireless pc A C B BSS 1 BSS 2

15. PC PC PC PC PC LAN AP Portal BSS 1 BSS 2 ESS DS

17. A user can move from Area 1 to Area 2 transparently. The Wireless networking hardware automatically swaps to the Access Point with the best signal. USER

27. Thank you Tanks from Hooman Reisi Amin mahdavian