?????(WLAN)??

1
?????(WLAN)??
2
?????

• WLAN (Wireless Local Area Network or also called
  Wi-Fi)?????????
• ????????????????
• ??????40m
• ????????????
• ???????
• ????
• 802.11b????11Mbps
• 802.11a?802.11g????54 Mbps

3
WLAN ????
AP
AP
AP
4
WLAN??
AP
5
WLAN????

• IEEE802.11b
• IEEE802.11a
• IEEE802.11g
• IEEE802.11e
• IEEE802.11i
• IEEE802.11n

6
WLAN???

• ????
• ????AD HOC??
• ????
• ?????
• ???????

• ????????
• ???????????
• ????

7
WLAN ??

• WLAN ???????
• -???????????????????????????
• -???????PDA???????
• ??????????
• -???????????????????????????QoS????????
• ????????????????????

8
THANK YOU
????????????? 2006?11?