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降低OFDM系统峰均比的选择性映射算法研究 被引量：5

Research of reducing PAPR in OFDM of selected mapping
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摘要 正交频分复用(OFDM)是一种具有极高的频谱利用率和抗多径衰落性能良好的多载波调制方式,但是它存在高的峰值功率平均比(PAPR)问题。本文分析了解决该问题的基本选择性映射算法,并从传送边带信息、传输速率和系统的计算量方面对改进的选择性映射算法进行了研究。仿真结果表明使用单极相位序列的选择性映射算法比普通的选择性映射算法可以有效降低0.5dB左右的PAPR。 Orthogonal Frequency Division Multiplexing （OFDM） is a kind of multi-carrier modulations that can efficiently use of radio spectrum and withstand multi-path fading. But high peak-to-average power ratio（PAPR） of the transmitted signal is a major drawback of orthogonal frequency division multiplexing （OFDM）. In this paper, general selected mapping （SLM） technique that is used to solve this problem is analyzed and modified selected mapping is researched in the aspect of transmitting the side information ,transmitting rate and computation of the system.From the result of the simulation, the PAPR can be reduced 0.5dB in the modified selected mapping using the monopoly phase than the general selected mapping.
作者 黎锁平 蔡志鹏 何继爱
机构地区 兰州理工大学运筹与控制研究所 兰州理工大学计算机与通信学院
出处 《信号处理》 CSCD 北大核心 2008年第4期640-643,共4页 Journal of Signal Processing
基金 教育部"春晖计划" 兰州理工大学优秀中青年教师基金 兰州理工大学博士基金资助
关键词 正交频分复用 选择性映射 峰值平均功率比 orthogonal frequency division multiplexing selected mapping peak-to-average ratio
分类号 TN929.5 [电子电信—通信与信息系统] TP18 [自动化与计算机技术—控制理论与控制工程]
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参考文献5

  • 1孙小东,于全,王红星,魏克军,戴卫恒.OFDM技术及系统仿真设计[J].系统仿真学报,2004,16(3):499-503. 被引量：25
  • 2Yang Chan Cho, Seung Hee Han, Jae Hong Lee. Selected Mapping Technique with Novel Phase Sequences for PAPR Reduction of an OFDM Signal[ C ]. Vehicular Technology Conference, 2004 ( 7 ) :4781-4785.
  • 3Zhou, G. T. , Baxley, R. J. , Ning Chen. Selected mapping with monomial phase rotations for peak-to-average power ratio reduction in OFDM [ C ]. Communications, Circuits and Systems. 2004( 1 ) :66-70.
  • 4Seung Hee Han,Jae Hong Lee. Modified selected mapping technique for PAPR reduction of ceded OFDM signal [ J ]. IEEE Transactions,2004,3 (50) : 335-341.
  • 5Dae-Woon Lim, Jong-Seon No, Chi-Woo Lim, Habong Chung. A new SLM OFDM scheme with low complexity for PAPR reduction [ J ]. Signal Processing Letters, IEEE, 2005,2(12) :93-96.

二级参考文献6

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共引文献24

同被引文献29

  • 1井雅,陈明,程时昕.一种低复杂度的基于多径时延跟踪的OFDM信道估计算法[J].电路与系统学报,2005,10(4):111-115. 被引量：1
  • 2Tao Jiang, Yiyan Wu. An Overview: Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals [J]. IEEE Trans. on Broadcasting, 2008, 45(2) : 257- 267.
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  • 5L. Wang, Y. Cao. Sub-optimum PTS for PAPR reduction of OFDM signals[J]. Electron. Lett., 2008, 44(15): 560-561.
  • 6A. D. S. Jayalath, C. TeUambura, H. Wu. Reduced complexity PTS and new phase sequences for SLM to reduce PAP of an OFDM signal [ J ]. Vehicular Technology Conf. Proc. , 2000, 3:1914-1917.
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  • 8A. D.S. Jayalath, C. Tellambura. Adaptive Iris approach for reduction of peak-to-average power ratio of OFDM signal [J]. Electronics Letters, 2000, 36(14):1226-1228.
  • 9G.R. Hill, M. Faulkner, J. Singh. Reducing the peak- to-average power ratio in OFDM by cyclically shifting partial transmit sequences [ J]. Electronics Letters, 2000, 36 (6) :560-561.
  • 10G. Lu, P. Wu, C. Carlemalm-Logothetis. Peak-to-average power ratio reduction in OFDM based on transformation of partial transmit sequences [ J ]. Electronics Letters, 2006, 42(2) :105-106.

引证文献5

二级引证文献9

信号处理
2008年 第4期

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