Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals

Chao YANG; Yong WANG; Jian-hua GE

doi:10.11959/j.issn.1000-436x.2015091

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Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals

Academic communication | 更新时间：2024-06-05

- Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals
- Journal on Communications Vol. 36, Issue 4, Pages: 164-169(2015)
- 作者机构：
  
  西安电子科技大学综合业务网理论及关键技术ISN国家重点实验室，陕西西安710071
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61101145);The National Important Science Technology Specific Project(2012ZX03001008);The 111 Project(B08038)
- DOI：10.11959/j.issn.1000-436x.2015091
  CLC： TP393
- Online First：2015-04，
  
  Published：25 April 2015
- 稿件说明：
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Chao YANG, Yong WANG, Jian-hua GE. Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals[J]. Journal on Communications, 2015, 36(4): 164-169.
DOI：

Chao YANG, Yong WANG, Jian-hua GE. Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals[J]. Journal on Communications, 2015, 36(4): 164-169. DOI： 10.11959/j.issn.1000-436x.2015091.

摘要

针对现有基于压扩变换处理的信号峰平比抑制方法性能单一且参数固定等缺陷，提出一种联合迭代滤波与自适应压扩参数优化的 OFDM 信号峰平比抑制方案。该方案能够同时对信号的峰平比 PAPR 和接收端误码率BER性能进行联合优化，并在迭代过程中有效消除因信号幅度畸变所引起的带外频谱再生；所提信号压扩及解压扩函数形式简单，计算复杂度较小；推导并给出了该方案可获得的PAPR抑制增益和BER理论性能界。仿真结果表明，该方案可同时获得较好的信号PAPR抑制、误码率以及带外功率谱性能，并在迭代过程中对压扩参数进行自适应调整，能够有效提高算法的适用灵活性。

Abstract

Considering the drawbacks of the traditional companding transforms，an efficient companding scheme combined with iterative filtering was proposed to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals.By introducing a joint optimization approach for PAPR and bit error rate (BER) performances along with remaining an unchanged average output power level，the scheme could achieve significant reduction in PAPR as well as an improved BER simultaneously.Moreover，by adaptively adjusting the transform parameters in the iterative process，more design flexibility in companding form and lower out-of-band radiation could also be given to satisfy various system requirements.The proposed scheme had a simple functional form and less computational complexity.The theoretical results regarding the transform gain and impact of companding distortion were derived.Simulation results show that this scheme can substantially offer better overall performances in terms of PAPR reduction，BER performance and bandwidth efficiency.

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references

HWANG T，YANG C，WU G ， LI S ， LEE G Y . OFDM and its wireless application:a survey [J ] . IEEE Trans Vehicular Technology ， 2009 ， 58 ( 4 ): 1673 - 1694 .

RAHMATALLAH Y ， MOHAN S . Peak-to-average power ratio reduction in OFDM systems:a survey and taxonomy [J ] . IEEE Commun Surveys & Tutorials ， 2013 ， 15 ( 4 ): 1567 - 1592 .

ARMSTRONG J . Peak-to-average power reduction for OFDM by repeated clipping and frequency domain filtering [J ] . Electronics letters ， 2002 ， 38 ( 5 ): 246 - 247 .

WANG Y ， LUO Z . Optimized iterative clipping and filtering for PAPR reduction of OFDM signals [J ] . IEEE Trans Commun ， 2010 ， 59 ( 1 ): 33 - 37 .

WANG L ， TELLAMBURA C . A simplified clipping and filtering technique for PAR reduction in OFDM systems [J ] . IEEE Signal Processing Lett ， 2005 ， 12 ( 6 ): 453 - 456 .

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

YUAN J . New companding transform for PAPR reduction in OFDM [J ] . IEEE Commun Lett ， 2010 ， 14 ( 4 ): 282 - 284 .

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

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

JENG S S ， CHEN J M . Efficient PAPR reduction in OFDM systems based on a companding technique with trapezium distribution [J ] . IEEE Trans Broadcasting ， 2011 ， 57 ( 2 ): 291 - 298 .

HOU J ， GE J H ， LI J . Trapezoidal companding scheme for peak-to-average power ratio reduction of OFDM signals [J ] . Electronics Lett ， 2009 ， 45 ( 25 ): 1349 - 1351 .

KOU Y J ， LU W S ， ANTONIOU A . A new peak-to-average power-ratio reduction algorithm for OFDM systems via constellation extension [J ] . IEEE Trans Wireless Commun ， 2007 ， 6 ( 5 ): 1823 - 1832 .

LI L ， QU D M . Joint decoding of LDPC code and phase factors for OFDM systems with PTS PAPR reduction [J ] . IEEE Trans Vehicular Technology ， 2012 ， 62 ( 1 ): 444 - 449 .

CIMINI J L J ， SOLLENBERGER N R . Peak-to-average power ratio reduction of an OFDM signal using partial transmit sequences [J ] . IEEE Commun Lett ， 2000 ， 4 ( 3 ): 86 - 88 .

DARDARI D ， TRALLI V ， VACCARI A . A theoretical characterization of nonlinear distortion effects in OFDM systems [J ] . IEEE Trans Commun ， 2000 ， 48 ( 10 ): 1755 - 1764 .

BANELLI P ， CACOPARDI S . Theoretical analysis and performance of OFDM signals in nonlinear AWGN channels [J ] . IEEE Trans Commun ， 2000 ， 48 ( 3 ): 430 - 441 .

ETSI EN 300 744 v1.4.1 [S ] . Digital Video Broadcasting:Framing Structure，Channel coding，and Modulation for Digital Terrestrial Television ， 2001 .

JIANG T ， LI C . Simple alternative multisequences for PAPR reduction without side information in SFBC MIMO-OFDM systems [J ] . IEEE Trans Vehicular Technology ， 2012 ， 61 ( 7 ): 3311 - 3315 .

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