新一代宽带无线局域网系统中的OFDM技术研究  

Application Study of the OFDM in the New Broadband Wireless LAN

作　　者：傅民仓[1] 冯立杰[1] 袁俊飞[1] 

机构地区：[1]武警工程学院,陕西西安710086

出　　处：《现代电子技术》2006年第3期54-56,共3页Modern Electronics Technique

摘　　要：无线局域网是一种高速的无线数据传输系统,其调制技术的选择非常关键。OFDM(正交频分复用)是一种无线环境下的高速传输技术,适合在多径传播和多普勒频移的无线移动信道中传输高速数据。他能有效地对抗多径效应,消除符号间干扰,对抗频率选择性衰落,而且信道利用率高。文中对OFDM技术在新一代宽带无线局域网无线接入系统中的应用进行了分析和研究。The wireless LAN is of a high speed wireless data transmission system,for which it is very critical to choose the modulation technique. OFDM is a high speed modulation technique under wireless conditions, suitable to transmit high speed data in wireless mobile channel of multi - path and Doppler frequency shift. It can waken the multi - path effect availably, eliminate symbol interference and fight against frequency select fading. Moreover,the channel utilization rate is high. This article analyzes the OFDM applications in the wireless interface system of the new broadband wireless LAN.

关 键 词：无线城城网 OFDM 多径衰落 多普勒频移 

分 类 号：TP393.1[自动化与计算机技术—计算机应用技术]