IEEE 802.11
1.1、IEEE 802.11简介
开发组织：IEEE
技术委员会：IEEE 802 LAN/MAN Standards Committee
工作组：IEEE 802.11 - Wireless LAN Working Group

IEEE 802.11实际上是一个工作组，并不是一个协议。但是为了便于交流，人们常常称呼它为协议族。 这是因为IEEE 802.11工作组开发出了很多的协议，这些协议的名称都是IEEE 802.11后面加上一个或2个字母。

1.2、IEEE 802.11中包含的协议
编号Revision名称
IEEE 802.11bWireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Higher Speed Physical Layer (PHY) Extension in the 2.4 GHz Band
IEEE 802.11aWireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: High Speed Physical Layer in the 5 GHz Band
IEEE 802.11gWireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Further Higher Data Rate Extension in the 2.4 GHz Band
IEEE 802.11iWireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Amendment 6: Medium Access Control (MAC) Security Enhancements
IEEE 802.11nWireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 5: Enhancements for Higher Throughput
IEEE 802.11acWireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 4: Enhancements for Very High Throughput for Operation in Bands below 6 GHz
IEEE 802.11axWireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment: Enhancements for High Efficiency WLAN