Nonlinear companding transform for PAPR reduction in lattice-OFDM system

Si-ming PENG; Yue-hong SHEN; Zhi-gang YUAN; Yu-wei MIAO; Wei JIAN

doi:10.11959/j.issn.1000-436x.2015079

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Nonlinear companding transform for PAPR reduction in lattice-OFDM system

Academic paper | 更新时间：2024-06-05

- Nonlinear companding transform for PAPR reduction in lattice-OFDM system
- Journal of Communications Vol. 36, Issue 3, Pages: 232-239(2015)
- 作者机构：
  
  1. 解放军理工大学通信工程学院，江苏南京 210007
  2. 济南军区通信网络技术管理中心，山东济南 250002
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(60772083);The National Natural Science Foundation of China(61201242);The Natural Science Foundation of Jiangsu Province(BK2012057);The Pre-research Foundation of PLA University of Science and Technology(KYTYZLXY1208)
- DOI：10.11959/j.issn.1000-436x.2015079
  CLC： TN919.72
- Online First：2015-03，
  
  Published：25 March 2015
- 稿件说明：
移动端阅览
Si-ming PENG, Yue-hong SHEN, Zhi-gang YUAN, et al. Nonlinear companding transform for PAPR reduction in lattice-OFDM system[J]. Journal of Communications, 2015, 36(3): 232-239.
DOI：

Si-ming PENG, Yue-hong SHEN, Zhi-gang YUAN, et al. Nonlinear companding transform for PAPR reduction in lattice-OFDM system[J]. Journal of Communications, 2015, 36(3): 232-239. DOI： 10.11959/j.issn.1000-436x.2015079.

摘要

针对网格正交频分复用(LOFDM

lattice OFDM)系统具有较传统OFDM系统更高峰均功率比(PAPR

peak-to-average power ratio)的问题，在将传统非线性压扩变换应用于LOFDM系统的同时研究并分析了一种新的基于原信号统计分布特性的连续可导非线性压扩算法。该算法从原信号的渐进高斯分布特性出发并对原信号的幅度分布函数进行截断逼近，在保持平均功率不变的条件下，将压扩后的信号限制在与原信号分布特性一致的特定范围内，使压扩后的信号在保持其原有分布特性的同时，能更大程度改善系统PAPR和误比特(BER

bit error ratio)性能。理论分析和仿真实验表明，所提出的算法性能要显著优于传统非线性压扩算法。

Abstract

Since the inherent higher peak-to-average power ratio (PAPR) in lattice OFDM (LOFDM) is higher than that of conventional OFDM systems

a novel continuous and differentiable nonlinear companding scheme is investigated and analyzed when employing the conventional companding transforms. By making full use of the characteristic of the Gaus-sian-distributed original signals and employing a truncation to the distribution function of the original signals

the com-panded signals can be restricted in a specific region which consistents with the distribution of original signals. Therefore

the companded signals can not only achieve an improved PAPR and bit error ratio (BER) performance but also maintain the statistical characteristics of the original signals. Theoretical analysis and simulation results demonstrate that the pro-posed scheme substantially outperforms the conventional nonlinear companding schemes.

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Keywords

references

JIANG T , WU Y . An overview: peak-to-average power ratio reduction techniques for OFDM signals [J ] . IEEE Transactions on Broadcasting , 2008 , 54 ( 2 ): 257 - 268 .

LI L , QU D . Joint decoding of LDPC code and phase factors for OFDM systems with PTS PAPR reduction [J ] . IEEE Transactions on Vehicular technology , 2013 , 62 ( 1 ): 444 - 449 .

QU D , LU S , JIANG T . Multi-block joint optimization for the peak-to-average power ratio reduction of FBMC-OQAM signals [J ] . IEEE Transactions on Signal Processing , 2013 , 61 ( 7 ): 1605 - 1613 .

JIANG T , NI C , GUAN L . A novel phase offset SLM scheme for PAPR reduction in alamouti MIMO-OFDM systems without side information [J ] . IEEE Signal Processing Letters , 2013 , 20 ( 4 ): 383 - 386 .

WANG Y , CHEN W , CHINTHA T . Genetic algorithm based nearly optimal peak reduction tone set selection for adaptive amplitude clipping PAPR reduction [J ] . IEEE Transactions on Broadcasting , 2012 , 58 ( 3 ): 2417 - 2423 .

ZHU X , PAN W , LI H , et al . Simplified approach iterative clipping and filtering for PAPR reduction of OFDM signals [J ] . IEEE Transactions on Communications , 2013 , 61 ( 5 ): 1891 - 1901 .

WANG Y , WANG L H , GE J H , et al . Nonlinear companding trans-form for reduction of peak-to-average ratio in OFDM systems [J ] . IEEE Transactions on Broadcasting , 2013 , 59 ( 2 ): 369 - 375 .

XIAO H , LU J , ZHENG J , et al . Reduction of peak-to-average power ratio of OFDM signals with companding transform [J ] . Electronics Letters , 2001 , 37 ( 8 ): 506 - 507 .

XIAO H , LU J , ZHENG J , et al . Companding transform for reduction in peak-to-average power ratio of OFDM signals [J ] . IEEE Transactions on Wireless Communications , 2004 , 3 ( 6 ): 2030 - 2039 .

JIANG T , YANG Y , SONG H . Exponential companding technique for PAPR reduction in OFDM systems [J ] . IEEE Transactions on Broad-casting , 2005 , 51 ( 2 ): 244 - 248 .

JENG S S , CHEN J M . Efficient PAPR reduction in OFDM systems based on a companding Technique with trapezium distribution [J ] . IEEE Transactions on Broadcasting , 2011 , 75 ( 2 ): 291 - 298 .

HOU J , GE J , ZHAI J , et al . Peak-to-average power ratio reduction of OFDM signals with nonlinear companding scheme [J ] . IEEE Transactions on Broadcasting , 2010 , 56 ( 2 ): 258 - 262 .

PENG S , SHEN Y , YUAN Z , et al . PAPR reduction of LOFDM signals with an efficient nonlinear companding transform [A ] . IEEE International Conference on Wireless Communication and Signal Processing (WCSP) [C ] . Hangzhou, China , 2013 . 1 - 6 .

WANG Y , WANG L H , GE J H , et al . An efficient nonlinear com-panding transform for reducing PAPR of OFDM signals [J ] . IEEE Transactions on Broadcasting , 2012 , 58 ( 4 ): 677 - 684 .

PENG S , SHEN Y , YUAN Z . PAPR reduction of multi-carrier systems with simple nonlinear companding transform [J ] . IEE Electronics Letters , 2014 , 50 ( 6 ): 473 , 474 .

STROHMER T , BEAVER S . Optimal OFDM design time-frequency dispersive channels [J ] . IEEE Transaction on Communications , 2003 , 51 ( 7 ): 1111 - 1122 .

XU K , ZHANG D , XU Y , et al . Distribution of PAPR in LOFDM systems based on extreme value theory [A ] . IEEE International Con-ference on Wireless Communication and Signal Processing (WCSP) [C ] . Nanjing, China , 2011 . 1 - 5 .

简伟，沈越泓，修国浩．改进的LOFDM系统实现方法 [J ] ．吉林大学学报 ( 信息科学版 )， 2006 , 24 ( 3 ): 276 - 282 .

JIAN W , SHEN Y H , XIU G H . Improved implementation of LOFDM systems [J ] . Journal of Jilin University ( Information Science Edition ), 2006 , 24 ( 3 ): 276 - 282 .

COSTA E , MIDRIO M , PUPOLIN S . Impact of amplifier nonlinearities on OFDM transmission system performance [J ] . IEEE Communications Letters , 1999 , 3 ( 2 ): 37 - 39 .

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