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基于Hadamard矩阵变换降低OFDM系统PAPR的新算法 被引量：2

PAPR Reduction Using Hadamard Matrix Transform in OFDM Systems
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摘要 本文研究了一种基于Hadamard变换降低OFDM系统PAPR的新算法,该算法扩展了传统系统的星座点,减小了频域符号间的相关性,其编解码算法简便,易于实现。文中分析了该算法的基本原理,同时仿真结果表明,采用该算法其PAPR可以比传统方法降低3-4dB;并且可以与其它方法联合使用,从而进一步降低PAPR。 In this paper a new method for PAPR reduction in OFDM systems is considered. We use Hadamard transform to expand the constellation points which can reduce the correlation of the symbols in the frequency domain, The encoding and decoding is simple and it also has a low computational complexity. The simulation give 3 -4 dB reduction than the conventional OFDM systems.
作者 贺中堂 张力军 姬国庆
机构地区 南京邮电大学信息工程系
出处 《信号处理》 CSCD 北大核心 2006年第6期883-886,共4页 Journal of Signal Processing
关键词 OFDM HADAMARD矩阵 峰均比 星座图 OFDM Hadamard matrix PAPR Constellation
分类号 TP387 [自动化与计算机技术—计算机系统结构]
作者简介 贺中堂：男，1971年生，南京邮电大学信息工程系博士生，徐州空军学院讲师，主要研究方向：宽带无线数字通信。
  • 相关文献

参考文献12

  • 1S. H. Muller and J. B. Hubber," OFDM with reduced peakto-average power ratio by optimum combination of partial transmit sequences, "Electron. Lett, vol. 33, no. 5, pp. 368- 369, Feb. 1997.
  • 2H. Yu and G. Wei," Computation of the continuous-time PAR of an OFDM signal," in International Conference on Acoustics,Speech and Signal Processing ( ICASSP' 03 ),Hong Kong, China,6 - 10 April 2003, IEEE ,pp. Ⅳ-529 -31,IEEE.
  • 3B. S. Krongold and D. L. Jones," PAR Reduction in OFDM via Active Constellation Extension," IEEE Tram. Broadcasting, vol. 49, no. 3, pp. 258 - 268, Sept. 2003.
  • 4H. K. Kwok, Shape Up: Peak-Power Reduction via Constellation Shaping, Ph. D. thesis, University of Illinois,2001.
  • 5H. K. Kwok and D. L. Jones,"PAR Reduction for Hadamard Transform-Based OFDM," in 34th Conference on-Signal, Systems, and Computers, Princeton, NJ, March 15 - 17 2000.
  • 6H. K. Kwok and D. L. Jones,"PAR Reduction via Constellation Shaping," in 2000 International Symposium on Information Theory, Sorrento, Italy, June 25 - 30 2000.
  • 7Myonghee Park and Heeyoung Jun," PAPR Reduction in OFDM Transmission using Hadamard Transform,"2000 IEEE Trans pp 430 - 433.
  • 8A. Mobasher and A. K. Khandani, "PAPR Reduction Using Integer Structures in OFDM Systems," Submitted to IEEE Trans. on Comm , June 2004.
  • 9A. Mobasher and A. K. Khandani," PAPR Reduction Using Integer Structures in OFDM Systems," Technical Report UW-E&CE 2004.
  • 10Paul J Shlichta "High Dimensional Hadamard Matrices"IEEE Trans VOL. IT - 25, No. 5 1979.

二级参考文献7

  • 1[1]T A Wilkinson,A E Jones.Combined coding for error control and increased robustne ss to system nonlinearities in OFDM [A].Proc of IEEE 1996 VTC [C].USA:IEEE,1 996.904-908.
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  • 3[3]R W Bauml,R F H.Fischer,J B Huber.Reduced peak-to-average power ratio of multi carrier modulation by selective mapping [J].Elec Letters,1996,32(22):2056-2057 .
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  • 6[6]Xianbin Wang,T T Tjhung,C S Ng.Reduction of peak-to-average power ratio of OFD M system using A companding technique [J].IEEE Trans on Broadcasting,1999,45: 303-307.
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共引文献13

同被引文献16

  • 1卢照敢,张太镒,王晓艳.降低正交频分复用系统峰均功率比的部分压扩算法[J].微电子学与计算机,2007,24(3):11-14. 被引量：2
  • 2Serdar Sezginer and Hikmet Sari. PEAK POWER REDUCTION IN OFDM SYSTEMS USING DYNAMIC CONSTELLATION SHAPING. Proceedings of EUSIPCO 2005, September 2005.
  • 3Serdar Sezginer and Hikmet Sari. OFDM Peak Power Reduction with Simple Amplitude Predistortion. IEEE Communications Letters, February, 2006, v 10, n 2, p 65- 67.
  • 4Luqing Wang and Chintha Tellambura. A Simplified Clipping and Filtering Technique for PAR Reduction in OFDM Systems. IEEE SIGNAL PROCESSING LETFERS, VOL. 12 ,NO. 6,JUNE 2005. p 453-456.
  • 5Yaron Handali, Itamar Nizan and Dov Wulich. On channel capacity of OFDM with SLM method for PAPR reduction. 2006 IEEE 24th Convention of Electrical and Electronics Engineers in Israel. 2006. p 138-140.
  • 6Sang-Woo Kim, Jin-Kook Chung and Heung-Gyoon Ryu. PAPR Reduction of the OFDM Signal by the SLM-based WHT and DSI Method. IEEE Region 10 Annual International Conference. 2006. p 4142156.
  • 7Amin Mobasher and Amir K. Khandani. PAPR Reduction Using Integer Structures In OFDM Systems. IEEE Vehicular Technology Conference, 2004, v 60, n 1, p 650- 654.
  • 8Brian Scott Krongold and Douglas L. Jones . PAR Reduction in OFDM via Active Constellation Extension. IEEE Trans. Broadcasting, Sept. 2003, v 49, n 3, pp. 258-268.
  • 9Pongsakorn Boonsrimuang, Pisit Boonsrimuang, Kazuo Mori,Tawil Paungma and Hideo Kobayashi. PAPR Reduction Method for OFDM Signal by Using Dummy Sub-carriers. 2006 1st International Symposium on Wireless Pervasive Computing,2006 ,v 2006 ,p 1-5.
  • 10JOHN G P.Digital communications. . 2001

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二级引证文献2

信号处理
2006年 第6期

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