New companding scheme of reducing PAPR of OFDM signal

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (16): 111-113.

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New companding scheme of reducing PAPR of OFDM signal

WANG Xiao-dan,YANG Shou-yi,MU Xiao-min,QI Lin

College of Information Engineering，Zhengzhou University，Zhengzhou 450052，China

Received:2007-09-11 Revised:2007-12-12 Online:2008-06-01 Published:2008-06-01
Contact: WANG Xiao-dan

一种新的降低OFDM峰均比的压扩算法

王晓丹,杨守义,穆晓敏,齐林

郑州大学信息工程学院，郑州 450052

通讯作者: 王晓丹

Abstract

Abstract: A novel companding transform scheme is proposed to reduced the Peak-to-Average Ratio of Orthogonal Frequency Division Multiplexing signals，compared with the improved companding scheme，the proposed scheme is illustrated in detail and analyzed in terms of reducing PAPR and improvement in BER performance in OFDM system.The simulation results confirm that the suggested scheme can outperform the improved companding scheme substantially.

Key words: Orthogonal Frequency Division Multiplexing（OFDM）, Peak-to-Average Power Ratio（PAPR）, Bit Error Ratio（BER）

摘要： 提出了一种新的用于减小OFDM信号峰均功率比的压缩扩张技术，通过与改进的压缩扩张技术的对比，详细介绍了新方法并分析了对PAPR的改善程度及其用于OFDM系统时对系统误比特率的改善等性能。实验仿真结果说明，新的非线性压缩扩张技术可以获得更为高效的系统性能增益。

关键词: 正交频分复用, 峰均比, 误码率

WANG Xiao-dan,YANG Shou-yi,MU Xiao-min,QI Lin. New companding scheme of reducing PAPR of OFDM signal[J]. Computer Engineering and Applications, 2008, 44(16): 111-113.

王晓丹,杨守义,穆晓敏,齐林. 一种新的降低OFDM峰均比的压扩算法[J]. 计算机工程与应用, 2008, 44(16): 111-113.

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New companding scheme of reducing PAPR of OFDM signal

一种新的降低OFDM峰均比的压扩算法

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