ADAPTIVE LINEARIZATION SCHEME FOR POWER AMPLIFIERS IN OFDM COMMUNICATION SYSTEMS

被引：0

作者：

Ding, Yuanming ^{[1
,2
]}

Sun, Lianming ^{[3
]}

Pan, Chengsheng ^{[1
,2
]}

机构：

[1] Dalian Univ, Liaoning Key Lab Commun Networks & Informat Proc, Dalian 116622, Peoples R China

[2] Dalian Univ, Dept Informat Engn, Univ Key Lab Commun & Signal Proc, Dalian 116622, Peoples R China

[3] Kitakyushu Univ, Fac Environm Engn, Dept Informat & Media Engn, Wakamatsu Ku, Kitakyushu, Fukuoka 8080135, Japan

来源：

INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL | 2011年 / 7卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Adaptive linearization; Predistortion; High power amplifiers (HPAs); DIGITAL PREDISTORTION; COMPENSATION;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

An adaptive linearization scheme based on the exact model-matching (EMM) approach is proposed to compensate nonlinearity of high power amplifiers (HPAs). It is illustrated that the input-output property of the broadband amplifier system can be approximated by a memory polynomial model (MPM). Then, the compensation of HPA input is determined from the MPM in a real-time manner, and consequently, the linearization from the nonlinearity compensator (predistorter) input to the HPA output can be attained even though the nonlinear dynamics of HPA has uncertainty and is time-varying. The effectiveness of the proposed adaptive linearization scheme is validated in numerical simulation in a 64QAM-OFDM communication system.

引用

页码：6473 / 6482

页数：10

共 18 条

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