Effects of Clipping and Filtering on the Performance of OFDM

被引：670

作者：

Li, Xiaodong ^{[1
]}

Cimini, Leonard J., Jr. ^{[2
]}

机构：

[1] Univ Washington, Dept Elect Engn, Seattle, WA 98195 USA

[2] AT&T Labs Res, Red Bank, NJ 07701 USA

来源：

IEEE COMMUNICATIONS LETTERS | 1998年 / 2卷 / 05期

关键词：

Clipping; crest factor; filtering; orthogonal frequency division multiplexing (OFDM);

D O I：

10.1109/4234.673657

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Orthogonal frequency division multiplexing (OFDM) is an attractive technique for wireless communication applications. However, an OFDM signal has a large peak-to-mean envelope power ratio, which can result in significant distortion when passed through a nonlinear device, such as a transmitter power amplifier. We investigate, through extensive computer simulations, the effects of clipping and filtering on the performance of OFDM, including the power spectral density, the crest factor, and the bit-error rate. Our results show that clipping and filtering is a promising technique for the transmission of OFDM signals using realistic linear amplifiers.

引用

页码：131 / 133

页数：3