正交频分复用(OFDM)技术在无线局域网中的应用  

Application of Orthogonal Frequency Division Multiplexing in Wireless LAN

作　　者：赵旭凇 

机构地区：[1]中京邮电通信设计院,北京100035

出　　处：《电信工程技术与标准化》2003年第5期66-70,共5页Telecom Engineering Technics and Standardization

摘　　要：本文首先介绍了OFDM的原理、采用基带FFT算法的系统实现及其优缺点,随后着重阐述了OFDM在无线局域网中应用的优势和存在的问题,最后给出了一个实例——IEEE 802.11a标准中的OFDM。The paper first introduces the theory of OFDM, the realization of OFDM system with FFT in baseband and the merits and defaults. Then the advantages and problems in the application of OFDM in Wireless LAN are emphasized. The paper concluded with an example of the OFDM system in the IEEE 802.11a standard.

关 键 词：正交频分复用 0FDM 无线局域网 FFT算法 IEEE802.11A标准 快速傅立叶变换 多径时延扩展 

分 类 号：TN925.93[电子电信—通信与信息系统]