一种降低正交频分复用峰均功率比的方法  

A Method to Reduce the Peak-to-Average Power Ratio for OFDM System

作　　者：房海东[1] 杨知行 潘长勇[1] 

机构地区：[1]清华大学电子工程系,北京100084

出　　处：《电讯技术》2002年第5期92-95,共4页Telecommunication Engineering

摘　　要：目前正交频分复用 (OFDM)正得到越来越广泛的应用 ,但其主要缺点是有较高的峰均比 (PA PR)。虽然有许多降低OFDM信号的峰均比的方案 ,但是却大大增加了系统的复杂性。本文通过改进一种降低OFDM信号峰均功率比的方法 。OFDM is studied in many fields, but it has a problem of high PAPR. There are many methods to reduce the PAPR for OFDM, but these methods usually increase the complexity of OFDM system. In this paper, the authors propose a new concept of OFDM, and it can achieve the lower PAPR and complexity of system.

关 键 词：多媒体通信 正交频分复用 频率选择性衰落 峰均功率比 OFDM 

分 类 号：TN919.85[电子电信—通信与信息系统]