+--------------+  +---------------------------------------------------------------------------------------------------+
|||Recommended Practice - Above the MAC Layer|
|||+-----------------------------+|
||->||802.11f||
||||Inter Access Point Protocol||
|||+-----------------------------+|
|              |  +---------------------------------------------------------------------------------------------------+
|              |  +---------------------------------------------------------------------------------------------------+
|||MAC Layer Enhancements - Applies to all 802.11 PHYs|
|802.11||+-----------------------------+ +-----------------------------+ +-----------------------------+|
||->||802.11d||802.11e||802.11i||
|(Wireless LAN|||Regulatory Domains||[[sysadmin:qos|QoS]] Enhancements||Security Enhancements||
|Medium Access||+-----------------------------+ +-----------------------------+ +-----------------------------+|
|Control (MAC) |  +---------------------------------------------------------------------------------------------------+
| and Physical |  +---------------------------------------------------------------------------------------------------+
|Layer (PHY)||2,4 GHz PHYs|
|specifications||+-----------------------------+  +-----------------------------+|
|1997, 1999)|||802.11b||802.11g||
||->||Higher-Speed Physical Layer|->|Even Higher-Speed Physical||
||||Extension||Layer Extension||
|||+-----------------------------+  +-----------------------------+|
|              |  +---------------------------------------------------------------------------------------------------+
|              |  +---------------------------------------------------------------------------------------------------+
|||5 GHz PHYs|
|||+-----------------------------+  +-----------------------------+  +-----------------------------+|
||||802.11a||802.11h||802.11j||
||->||High-Speed Physical Layer|->|Spectrum Managed 802.11a|->|802.11a / [[sysadmin:hiperlan|HiperLAN]]||
||||in the 5 GHz Band||DFS / TPC||Interworking||
|||+-----------------------------+  +-----------------------------+  +-----------------------------+|
+--------------+  +---------------------------------------------------------------------------------------------------+

– Stephan Pietzko - 23. Feb 2002 - wiki (at) s2p.de

{ WirelessLAN | WlanStandards }