降低OFDM信号峰均值比方法的研究
Reduction scheme research on peak-to-average power ratio of OFDM system
通过对OFDM信号进行削波或者对信号进行非线性压扩可以简单有效的降低信号的峰均值比，本文提出了一种基于平方率的压扩函数并用于对OFDM信号进行压扩，并利用计算机仿真，在基于802.16e协议的链路下比较研究了该函数与u率压扩和削波在降低峰均值比方面的效果与系统性能，仿真结果显示该方法在降低ＰＡＰＲ和对系统ＢＥＲ影响方面都有较好表现。
lipping or nonlinear companding can reduce the Peak-to-Average Ratio in Orthogonal Frequency Division Multiplexing (OFDM) signal. A new companding transform scheme based on Square-law distortion is proposed in this paper, and through computer simulation, compared this scheme with u-law companding and clipping in the wireless system based on 802.16e with an AWGN channel, this scheme has better performance behavior on reducing PAPR and lower BER impact.
叶健喆
无线通信通信
OFDMPAPR压扩法
OFDMPAPRCompanding transform
叶健喆.降低OFDM信号峰均值比方法的研究[EB/OL].(2008-08-22)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/200808-309.点此复制
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