期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

基于粒子群算法的OFDM峰平比抑制问题研究 被引量：4

A study of PAPR reduction in OFDM signals based on PSO algorithm
下载PDF
导出
摘要 提出了一种基于粒子群的相位优化组合算法来抑制OFDM信号的高峰平比,结合相位优化组合算法,通过寻找使峰平比最小的相位来抑制信号的高峰值信号的原理,利用粒子群算法无需过多原始信息、收敛迅速快、寻优准确等优点解决了寻找抑制OFDM信号峰平比的最优相位向量问题.实验仿真结果表明,提出的改进算法在不过多增加系统复杂度的同时,更为有效地抑制了OFDM信号的高峰平比现象. As the problem of high PAPR（ peak to average power ratio） in OFDM signals has greatly affected the application prospect of OFDM （orthogonal frequency division multiplexing） system, the PSO （particle swarm optimization） algorithm was applied in the phase optimization combination method for PAPR reduction, because compa- ring with the best algorithm proposed by Newman and Narahashi, it can search the optimization accurately with few original messages and less time, based on choosing the phasic signal approximately. The simulation result shows that the algorithm introduced in this paper is better in the same condition. Meanwhile, its computational complexity is not increased too much.
作者 毕晓君 张旭
机构地区 哈尔滨工程大学信息与通信工程学院
出处 《应用科技》 CAS 2009年第8期17-20,共4页 Applied Science and Technology
关键词 OFDM 峰平比 相位优化组合法 粒子群算法 OFDM PAPR phase optimization combination method PSO
分类号 TN914 [电子电信—通信与信息系统]
  • 相关文献

参考文献7

  • 1YOU Xiaohu, CHEN Guoan, CHEN Ming. Toward beyond 3G: the future project in China[ J]. IEEE Communications Magazine, 2005, 43 (1) : 70-75.
  • 2罗仁泽,师向群,黄岚,罗朗.OFDM系统降低PAPR技术的比较[J].电信科学,2007,23(5):64-67. 被引量：2
  • 3NEWMAN D J. An L1 external problem for polynomials [J]. Proc Amer Math Soc, 1965, 16(5) : 1287-1290.
  • 4NARAHASHI S, NOJIMA T. New phasing scheme of N- multiple carriers forreducing peak-to-average power ratio [ J]. Electronics Letters, 1994, 30(17) : 1382-138.
  • 5POPOVIC B M . Synthesis of power efficient muhitone signals with flat amplitude spectrum [ J ]. IEEE Transactions on Communications, 1991, COM-39 (7) : 1031-1033.
  • 6KENNEDY J, EBERHART R C. Particle swarm optimization [ C ]//Proceedings of IEEE International Conference on Neural Networks. Perth, Australia, 1995.
  • 7SHI Yu-hui, EBERHART R C. A modified particle swarm optimizer [ C ]// Proceedings of IEEE International Conference on Evolutionary Computation. Piscataway, NJ, 1998: 69-73.

二级参考文献32

  • 1Li X, Cimini Jr L J. Effects of clipping and filtering on the performance of OFDM. IEEE Communications Letters, 1998(5): 131-133
  • 2Hideki Ochiai, Hideki Imai. Performance analysis of deliberately clipped OFDM signals. IEEE Trans on Communications, 2002, 50(1)
  • 3Wulich D, Goldfeld L. Reduction of peak factor in orthogonal multicarrier modulation by amplitude limiting and coding. IEEE Trans on COM, 2002, 50(1)
  • 4Pauli M, Duchenbecker H P. Minimization of the intermodulation distortion of a nonlinearly amplified OFDM signal. Wireless Personal Communications, 1996, 4(1): 93-101
  • 5Van Nee R J, De Wild A. Reducing peak-to-average power ratio of OFDM. In: IEEE Vehic Tech Conf (VTC'99-fall), Amsterdam, Netherlands, September 1999
  • 6Thomas May, H R. Reducing the peak-to-average power ratio in OFDM radio transmission systems. In: IEEE Vehic Tech Conf'98, Ottawa, May 1998
  • 7Nikookar H, Prasad R. Weighted multicarrier modulation for peak-to-average power reduction. In: IEEE ICT'99, Cheju, South Korea, June 1999
  • 8Gatherer A, Polley M. Controlling clipping probability in DMT transmission. In: Proceedings of the 31st Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, Nov 1997
  • 9Wang X, Tjhung T T. Reduction of peak-to-average power ratio of OFDM system using a companding technique. IEEE Trans on Broadcasting, 1999, 45 (3)
  • 10Huang X, Lu J, Zheng J, et al. Reduction of peak-to-average power ratio of OFDM signals with companding transform. IEEE Electronics Letters, 2001, 37(8): 506-507

共引文献1

同被引文献38

  • 1张冬梅,徐友云,蔡跃明.OFDMA系统中线性注水功率分配算法[J].电子与信息学报,2007,29(6):1286-1289. 被引量：27
  • 2终学俭,罗涛.OFDM移动通信技术原理与应用[M].北京:人民邮电出版社,2003:4-7.
  • 3WONG C Y, CHENG R S, LETAIEF K B, et al. Multiuser OFDM with adaptive subcarrier, bit and power allocation [ J ]. IEEE J Sel Areas Commun, 1999, 17 (10) : 1747- 1757.
  • 4ZHANG Guodong. Subcarrier and bit allocation for real-time services in muhiuser OFDM systems [ C ]// IEEE International Conference on Communications. Paris, France, 2004 : 2985 -2989.
  • 5KVANC D, LI Guoqing, LIU Hui. Computationally efficient bandwidth allocation and power control for OFDMA [ J ]. IEEE Transactions wireless Communications, 2003, 2 (6) : 1150-1158.
  • 6WANG Yongxue, CHEN Fangjiong, WEI Gang. Adaptive subcarrier and bit allocation for multiuser OFDM system based on genetic algorithm [ C ]// International Conference on Communications, Circuits and Systems Proceedings, China, 2005 : 242-246.
  • 7Berkmann J, Carbonelli C, Dietrich F, et al. On 3G LTE termi- nal implementation standard, algorithms, complexities and chal- lenges[C] // Proc. of the International Wireless Communications and Mobile Computing Conference, 2008 : 970 - 975.
  • 8Gurung A K, Al-Qahtani F S, Sadik A Z, et al. Power savings analysis of clipping and filtering method in OFDM systems[C]// Proc. of the Telecommunication Networks and Applications Conference, 2008 : 204 - 208.
  • 9Wang Y, Luo Z. Optimized iterative clipping and filtering for PAPR reduction of OFDM signalsEJ. IEEE Trans. on Commu- nications, 2011, 50(1) :33 -37.
  • 10Verma S, Sharma P, Garg N, et al. Convolutional coded selected mapping technique for reducing the PAPR of OFDM signal[J]. Communications in Computer and Information Science, 2011, 172(2) :307 - 313.

引证文献4

二级引证文献16

应用科技
2009年 第8期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部