This document discusses different types of wireless networks including wireless personal area networks (WPANs), wireless local area networks (WLANs), wireless metropolitan area networks (WMANs), and wireless wide area networks (WWANs). It describes key aspects of WLANs such as infrastructure and ad-hoc network configurations, common wireless networking standards like 802.11, and security measures for WLANs including firewalls, user authentication, WEP, and WPA encryption.

1. 5.1
o
o digital
o
o 2
o
o
5.2
o
o
o
o
5.3 WIRELESS LAN)
o

2. o Wireless LAN WLAN)
5.4
o
o Mobility)
o
o
o
5.5
o PC Notebook Pocket PC
PCMCIA
o 802.11 Cisco,
Orinoco, Toshiba, 3Com, Linksys
o Access Point) :
LAN
4)
5.6
2
1. Ad-Hoc)
2
Access point)
2. Infrastructure)
Access point)

3. 5.7
1. WPAN (Wireless Personal Area Network)
2 IR
(Infra-Red) Bluetooth
3
10
2. WLAN (Wireless Local Area Network)
3. WMAN (Wireless Metropolitan Area Network)
4. WWAN (Wireless Wide Area Network)
5.8
o FireWall)
o

4. o User Name and
Password)
o WEP (wired equivalency privacy key)
o Wi-Fi Protected Access (WPA)
WEP
Network Adapter
.6 7