802.11 Standards Overview
As the family of 802.11 wireless standards expands ever further, I thought it would be nice to provide an overview of each IEEE 802.11 standard. This table courtesy of Wireless Builders provides a brief overview of each 802.11 standard and a short definition.
|IEEE 802.11||The initial release of the 802.11 standard. This is capable of transmission of 1 to 2 Mbps and operates in the 2.4 GHz band|
|IEEE 802.11a||Capable of transmissions up to 54 Mbps and operates in the 5 GHz band|
|IEEE 802.11b||IEEE introduced this standard in 1990. Capable of transmissions of up to 11 Mbps and operates in the 2.4 GHz band|
|IEEE 802.11c||Defines wireless bridge operations|
|IEEE 802.11d||Defines standards for businesses developing wireless standards in different countries|
|IEEE 802.11e||Defines enhancements to the 802.11 MAC for QoS|
|IEEE 802.11f||Defines Inter Access Point Protocol (IAPP)|
|IEEE 802.11g||Capable of transmissions up to 20 Mbps and operates in the 2.4 GHz band|
|IEEE 802.11i||Provides improved encryption|
|IEEE 802.11j||802.11 extension used in Japan|
|IEEE 802.11n||The latest 802.11 standard that improves upon existing standards by providing multiple-input, multiple-output (MIMO) and other new features. Expected to support up to 100 Mbps. Currently, the expected approval of 802.11n is March 2009.|
If you’d like more information about IEEE’s newest standard, 802.11n, you can read my post 802.11n Facts. This five day post will provide you with more specific information about this standard and a link to the Cisco White Paper that focuses on it.