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ieee 802.11 协议综述（IEEE 802.11协议综述）.doc

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ieee 802.11 协议综述（IEEE 802.11协议综述）

ieee 802.11 协议综述（IEEE 802.11协议综述） Overview of IEEE 802.11 protocol Author: Wang Yingchun Reference: wireless LAN technology and application Qian Jin; Baidu knows search engine; PC network equipment channel This review consists of the following 4 topics: Development of IEEE 802.11 series protocol standard IEEE 802.11, a, B, G, n protocol definitions and standards Application of IEEE 802.11 wireless products The future of IEEE 802.11 Development of [1] IEEE 802.11 series protocol standard IEEE802.11 series standard is by the International Federation of electrical and Electronic Engineers (IEEE), which is based on IEEE802.11 standard, including more published and edited by the standard is associated with the wireless lan. Figure 1 shows the location of wireless LANs in the IEEE network protocol architecture. Table 1 gives the name, timing, and brief description of each of the standard protocols. Figure 1: WLAN location in the IEEE network protocol architecture Table 2:IEEE802.11 series protocol standards Protocol name release time description IEEE defined the physical layer and MAC sublayer standard of 2.4GHz, microwave and infrared for 802.111997 years IEEE 802.11a defined the physical layer of 5GHz microwave and MAC sublayer standard in 1999 IEEE 802.11b extends the 2.4GHz microwave physical layer and the MAC sublayer standard (DSSS) in 1997 IEEE 802.11b+ extends the 2.4GHz microwave physical layer and the MAC sublayer standard (PBCC) in 2002 IEEE 802.11c 2000 protocol on interworking between IEEE 802.11 networks and common Ethernet IEEE 802.11d 2000 specifications for international roaming IEEE, 802.11e, quality control protocol based on WLAN in 2004 Internal communication protocol of wireless base station in IEEE 802.11F roaming in 2003 IEEE 802.11g extends the 2.4GHz microwave physical layer and the MAC sublayer standard (OFDM) in 2003 IEEE 802.11h 2003 extended 5GHz microwave physical layer and MAC sublayer standard (Europe) IEEE 802.11i enhanced WLAN security me