Effects of PAPR reduction on HPA predistortion

被引：37

作者：

Ai, B ^{[1
]}

Yang, ZX

Pan, CY

Zhang, TT

Ge, JH

机构：

[1] Tsinghua Univ, State Key Lab Microwave & Digital Commun China, Dept E&E, Beijing 100084, Peoples R China

[2] Engn Coll Armed Police Force, Xian 710086, Peoples R China

[3] Xidian Univ, Natl Key Lab Integrated Serv Networks, Xian, Peoples R China

来源：

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2005年 / 51卷 / 04期

关键词：

PAPR; HPA; predistortion; OFDM;

D O I：

10.1109/TCE.2005.1561836

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：

There have been many papers concerning about the Peak to Average Power Ratio (PAPR) reduction and High Power Amplifier (HPA) linearization techniques for wireless OFDM communication systems. Few papers, however, make deep analysis on the relation between these two techniques. Based on Saleh's memoryless Traveling Wave Tube Amplifier (TWTA) model, computer simulations and analysis in this paper demonstrates that, especially when the HPA is working near or in the saturation region, a predistorter will cease to be in effect. In such cases, PAPR reduction techniques may be resorted to help to improve the Adjacent Channel Interference (ACI), BER performances and HPA efficiency(1).

引用

页码：1143 / 1147

页数：5

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