An Efficient Nonlinear Companding Transform for Reducing PAPR of OFDM Signals
An Efficient Nonlinear Companding Transform for Reducing PAPR of OFDM Signals
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降低 OFDM 信号 PAPR 的高效非线性压扩变换
DOI：
10.1109/tbc.2012.2198976
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发表时间：
2012-06
期刊：
影响因子：
--
通讯作者：
王勇
中科院分区：
文献类型：
--
作者：
王勇
在本文中，提出了一种有效的非线性压扩方案以降低正交频分复用（OFDM）信号的峰均功率比（PAPR）。通过将原始信号的统计特性转换为一种特定分布……
In this paper, an efficient nonlinear companding scheme is proposed to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals. By transforming the statistics of original signals into a specified distribution form along with remaining an unchanged average output power level, this scheme can achieve significant reduction in PAPR as well as an improved BER performance simultaneously. Moreover, by properly adjusting the transform parameters, more design flexibility in companding form can also be given by this scheme to satisfy various system requirements. The theoretical analysis results regarding the transform gain, companding distortion and the selection criteria of parameters are derived. It is proved that this scheme may lead to less signal distortion compared to existing companding schemes. Simulation results demonstrate that the proposed scheme can substantially offer better overall performance of OFDM system in terms of PAPR reduction, BER performance and bandwidth efficiency.
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影响因子：
10.4
作者：
Tao Jiang;Weidong Xiang;P. Richardson;Daiming Qu;Guangxi Zhu
通讯作者：
Tao Jiang;Weidong Xiang;P. Richardson;Daiming Qu;Guangxi Zhu
影响因子：
4.5
作者：
S. Jeng;Jia-Ming Chen
通讯作者：
S. Jeng;Jia-Ming Chen
影响因子：
4.5
作者：
Jiang, Tao;Wu, Yiyan
通讯作者：
Wu, Yiyan
DOI：
10.2307/2981427
发表时间：
1982
期刊：
--
影响因子：
--
作者：
David A. Dickey;D. Brillinger
通讯作者：
David A. Dickey;D. Brillinger
DOI：
10.1109/11.796272
发表时间：
1999-09
期刊：
IEEE Trans. Broadcast.
影响因子：
--
作者：
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通讯作者：
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