On the distribution of the peak-to-average power ratio in OFDM signals

被引：450

作者：

Ochiai, H ^{[1
]}

Imai, H ^{[1
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Tokyo 1068558, Japan

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2001年 / 49卷 / 02期

关键词：

distribution; level-crossing rate; orthogonal frequency-division multiplexing (OFDM); peak-to-average power ratio (PAPR);

D O I：

10.1109/26.905885

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The distribution of the peak-to-average power ratio (PAPR) in strictly band limited orthogonal frequency-division multiplexing (OFDM) signals is studied. Assuming that the base- and OFDM signal is characterized as a band-limited complex Gaussian process, we first attempt to derive the exact distribution of the PAPR in the band-limited OFDM signals. Since this distribution cannot be expressed in a closed form, we further develop a simple closed-form approximation, based on the level-crossing rate analysis. Comparisons of the proposed distributions with those obtained by computer simulations show goad agreement and convergence with an increase in the number of subcarriers.

引用

页码：282 / 289

页数：8

共 16 条

[1] The distributions of local extrema of Gaussian noise and of its envelope [J].