Performance of an M-QAM full-duplex wireless system with a nonlinear amplifier

被引：2

作者：

He, Zhaojun ^{[1
]}

Ma, Wanzhi ^{[1
]}

Shao, Shihai ^{[1
]}

Wu, Fei ^{[1
]}

Qing, Chaojin ^{[2
]}

Tang, Youxi ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Natl Key Lab & Technol Commun, Chengdu 611731, Peoples R China

[2] Xihua Univ, Sch Elect & Informat Engn, Chengdu 6110039, Peoples R China

来源：

SCIENCE CHINA-INFORMATION SCIENCES | 2016年 / 59卷 / 10期

基金：

中国国家自然科学基金;

关键词：

full-duplex; amplifier nonlinear distortion; bit error ratio; amplitude error; phase error; CANCELLATION; SPECTRUM; DESIGN;

D O I：

10.1007/s11432-015-5370-2

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The effect of amplifier nonlinearity is analyzed for M-QAM full-duplex communications in additive white Gaussian noise channels. Two classical memoryless nonlinear amplifier models, i.e., a traveling-wave tube amplifier and a solid-state power amplifier, are considered. An analytical expression for the bit error ratio is derived using a characteristic function and numerical integration. Theoretical results show perfect agreement with those obtained by simulation. The analytical results could be used to evaluate the degradation in performance of an M-QAM full-duplex system caused by amplifier nonlinearity, and will be helpful in finding the optimal static operating point of an amplifier.

引用

页数：9

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