A wireless local area network (WLAN) links two or more devices using some wireless distribution method (typically spread-spectrum or OFDM radio), and usually providing a connection through an access point to the wider internet. This gives users the mobility to move around within a local coverage area and still be connected to the network. Most modern WLANs are based on IEEE 802.11 standards, marketed under the Wi-Fi brand name.

Wireless LANs have become popular in the home due to ease of installation, and in commercial complexes offering wireless access to their customers; often for free.

It includes the following topics -

• Wireless LAN Basics
• Wireless LAN Standards and Modes
• Wireless Encoding and Nonoverlapping DSSS Channels
• Wireless Interference Coverage Area Speed and Capacity
• Wireless Media Access Layer 2
• Wireless LAN Security WEP WPA IEEE 802.11i WPA 2 SSID Cloaking and MAC Filtering