A DATA PREDISTORTION TECHNIQUE WITH MEMORY FOR QAM RADIO SYSTEMS

被引：104

作者：

KARAM, G ^{[1
]}

SARI, H ^{[1
]}

机构：

[1] LABS ELECTRON PHILIPS,F-94451 LIMEIL BREVANNES,FRANCE

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 1991年 / 39卷 / 02期

关键词：

D O I：

10.1109/26.76471

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 [电气工程]; 0809 [电子科学与技术];

摘要：

We present an efficient data predistortion technique with memory for compensation of high-power amplifier (HPA) nonlinearities in digital microwave radio systems employing QAM signal formats. A practical implementation method is described which trades off performance against complexity, and which makes it possible to implement this kind of predistorter in 256-QAM and higher-level QAM systems. Using the 16-, 64-, and 256-QAM signal constellations, it is shown that the presented technique achieves a considerably higher performance than that of conventional memoryless data predistortion or of the predistortion technique with memory based on finite-order inverses of nonlinear systems.

引用

页码：336 / 344

页数：9

共 14 条

[1]

[Anonymous], 1980, VOLTERRA WIENER THEO

[2]

MODELING AND PERFORMANCE EVALUATION OF NON-LINEAR SATELLITE LINKS - VOLTERRA SERIES APPROACH [J].