So are you confused by all 802.11 standards, such 802.11a, 802.11b, 802.11g, etc. I have decided to include a brief breakdown of the different 802.11 standards:
- 802.11: up to 2Mbps, uses the 2.4GHz frequency (1997)
- 802.11b: up to 11Mbps, uses the 2.4GHz frequency (7/1999)
- 802.11a: up to 54Mbps, uses the 5GHz frequency (7/1999)
- 802.11g: up to 54Mbps, uses the 2.4GHz frequency (6/2003) [802.11b compatible]
- 802.11n: up to 600Mbps+, uses the 2.4Ghz and 5GHz frequency (2006) [has MIMO (Multiple-Input Multiple-Output), uses multiple transmitter and receiver antennas to allow for increased data throughput.]
- 802.11s: Mesh networking. A mesh network is a network of WAP (Wireless Access Points) that act like one big network. If one of the WAP fails, the other WAPs will automatically compensate for it. See the following article for more information.
- 2.4GHz equipment can incur interference from microwave ovens, cordless phones, and other appliances using the same radio signaling frequency range.
- The higher frequency 5GHz equipment signals has more difficulty penetrating walls and other obstructions.
- The 802.11n standard has not yet been finalized, only a draft specification has been ratified as of January 2006.