OFDM原理及在无线高速移动通信中的应用  

The Principle of OFDM and the Usage in High- speed Wireless Communication System

作　　者：姚平香[1] 

机构地区：[1]青岛远洋船员职业学院航海系,山东青岛266071

出　　处：《青岛远洋船员职业学院学报》2013年第2期4-7,66,共5页Journal of Qingdao Ocean Shipping Mariners College

摘　　要：正交频分复用技术(OFDM)是一种无线环境下的高速数据传输技术,具有频带利用率高、可有效抵抗多径干扰和窄带干扰等优点。本文介绍了OFDM基本原理,分析了OFDM系统的优缺点,并讨论了OFDM系统在无线高速移动通信中的应用。Orthotropic frequency division multiplexing （OFDM） is widely used as a key technique for wire- less communications. It can provide large data rate, increase the utilization of frequency spectrum, and reduce the muhipath and narrow - band interference. In this paper, we introduce the principles of OFDM at first, then analysis the advantage and disadvantages of OFDM system, and finally discuss its application in high - speed wireless mobile system.

关 键 词：OFDM 符号间干扰 保护间隔 峰值均值功率比 

分 类 号：TN919[电子电信—通信与信息系统]