WLAN is an acronym for Wireless Local Area Network. It is usually called Wireless LAN. So it's a local network – in your home, office or company builds without wires - Wireless.

Do not mix WLAN with VLAN. These acronyms are very similar, but they mean very different things. VLAN is Virtual Local Area Network, or you could also call it the Virtual LAN. VLAN divides one switch into more different broadcast domains, different networks. So always be aware of that difference.

Question you may ask – what are 802.11 networks? IEEE (Institute of Electrical and Electronics Engineers) has the whole family of 802 standards.

IEEE 802.11 is family of wireless standards.

IEEE 802.11a is standard that use the 5 GHz band with maximum speed of 54 Mbps.

IEEE 802.11b uses a frequency band of 2.4 GHz with maximum speed of 11 Mbps.

IEEE 802.11g is also on frequency of 2.4 GHz, but its maximum speed is 54 Mbps.

802.11n isn't released yet, it has the status of the draft. Maximum theoretical bandwidth is 540 Mbps. It is not decided whether it will work on 2.4 or 5 GHz.

IEEE 802.11i is an appendix to the 802.11 standard that specifies new generation of wireless security.

IEEE 802.16 - Broadband Wireless Access standard.

Return from What does WLAN stand for to What is WiFi