Peak-power-reduction scheme with adaptive transmit power control for multicarrier transmission

被引：0

作者：

Muta, O ^{[1
]}

Akaiwa, Y ^{[1
]}

机构：

[1] Kyushu Univ, Dept Intelligent Syst, Grad Sch Informat Sci & Elect Engn, Fukuoka 8128581, Japan

来源：

ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS | 2002年 / 85卷 / 05期

关键词：

multicarrier transmission; peak-to-mean power ratio; peak-power reduction; adaptive transmit power control;

D O I：

10.1002/ecja.1098

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：

We propose a peak-power-reduction (PPR) scheme that never sacrifices spectrum efficiency for a multicarrier transmission (MCT) system where subchannels are band-limited by filtering before the multiplexing. In this scheme, the transmit pulse power before filtering is decreased whenever the envelope peak amplitude is above a given threshold level. A reduction of 75% in peak power is achieved with a slight degradation in BER performance by applying the PPR scheme to an MCT system with eight subchannels under flat fading conditions. The proposed scheme is also investigated with an adaptive transmit power control, and the average transmit power and peak-to-mean power ratio (PMPR) are reduced. (C) 2002 Scripta Technica.

引用

页码：71 / 78

页数：8

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