无线局域网IEEE802.11n标准分析.pdf

Information communications IEEE 802.11n 802.11n IEEE802.11WLAN 802.11 802.11nWWiSE TGnSynch802.11n 802.11IEEE 802.11n 1997 WLAN802.11nWWiSETgnSynch MAC TP393.17 A 2Mbps 1673-1131(2008)04-036-04 (ad hoc)(Base Station, BS) Access Point AP WLAN802.11 CSMA/ WLAN (Wireless Local Area Network) CA (Carrier Sense Multi Access/Collision Avoidance) IEEE1999 WLAN (Radio 802.11a 5GHz ISM FrequencyRF)(InfraredIR) 54Mbps802.11b 2.4GHzISM 11Mbps AP 802.11c802.11m802.11g2.4GHzISM AP Access Point 54Mbps802.11n 600Mbps 802.11n The analyze of WLAN IEEE 802.11n standard LIU Wei-mu1 LIU Hou-quan (School of Computer Science Technology, China University of Mining and Technology, Xuzhou 221008, China) Abstract: 802.11n is a new emerging WLAN standard. The paper fi rst introduces WLAN and the history of the 802.11 series. Then it introduces the characteristics and the present situation of the 802.11n development. By comparing the WWiSE and the TGnSynch group, the paper analyzes the core technology of 802.11n. Finally it makes some forecasts of the future 802.11n Keyword: WLAN 802.11n WWiSE TGnSynch. 36 2008 No.4 Specialized forum 20041IEEE802.11n 802.11n802.11n600Mbps 3.1 MIMO 802.11b50 802.11g10802.11n 802.11nMIMO [1] SISO 802.11n20063 802.11n