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OFDM信号峰平功率比的一种简单的分布边界 被引量：3

Simple distribution bound of the peak-to-average power ratio in OFDM signals
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摘要 假设基带OFDM信号为一带限复高斯过程,研究了带限OFDM信号峰平功率比(PAPR)的分布。基于越幅率理论提出了带限OFDM信号PAPR分布的一种简单闭合形式的上边界。针对一个16QAM-OFDM系统,对不同子载波数的PAPR分布进行了蒙特卡罗仿真,以验证所提出的上边界的紧密性。仿真表明,当子载波数大于64时,该上边界是紧密的。 Assuming that the baseband OFDM signal is characterized by a band-limited complex Gaussian process,the distribution of the peak-to-average power ratio （PAPR） in band-limited OFDM signals is investigated. Based on the level-crossing rate theory, a simple closed-form upper bound on the PAPR distribution of a band-limited OFDM signal is proposed. For the 16QAM-OFDM systems with different subcarrier numbers, the Monte Carlo simulation of the PAPR distribution is performed to test the tightness of the proposed upper bound.
作者 颜彪 杨娟 薛波 李正权
机构地区 扬州大学信息工程学院
出处 《系统工程与电子技术》 EI CSCD 北大核心 2006年第3期366-368,共3页 Systems Engineering and Electronics
基金 江苏省国际科技合作计划项目基金资助课题(BZ2001036)
关键词 正交频分复用 载波频率 分布函数 orthogonal frequency division multiplexing carrier frequency distribution function
分类号 TN911.3 [电子电信—通信与信息系统]
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参考文献11

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同被引文献19

  • 1谭泽富.减小OFDM信号出现大峰平比的研究方法PTS法[J].中国有线电视,2004(9):10-12. 被引量：4
  • 2佟梅娟,朱琦,酆广增.一种减小OFDM系统中的PTS复杂性的方法[J].重庆邮电学院学报（自然科学版）,2005,17(1):26-28. 被引量：7
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  • 4SEUNG HEE HAN, JAE HONG LEE. Modified Selected Mapping Technique for PAPR Reduction of Coded OFDM Signal [ J ]. IEEE Trans. Broadcasting,2004,50(3) :335 - 341.
  • 5JAYALATH A D, TELLAMBURA C. Adaptive PTS approach for reduction of peak-to-average power ratio of OFDM signal[J]. Electronics Letters, 2000,36(14) : 1227 - 1228.
  • 6HIDEKI OCHIAI, HIDEKI IMAI. Performance Analysis of Deliberately Clipped OFDM Signals[ J ]. IEEE Trans on communications, 2002,50 (1) :89- 101.
  • 7DAVIDE DARDARI, VELIO TRALLI, ALESSANDRO VACCARI. A Theoretical Characterization of Nonlinear Distortion Effects in OFDM Systems[ J]. IEEE Trans on communication, 2000, 48 (10) : 1755 - 1764.
  • 8PANTA K R, JEAN ARMSTRONG. Effects of Clipping on the Error Performance of OFDM in frequency selective Fading Channels [ J ]. IEEE Trans on wireless communication, 2004,3(2) :668 -671.
  • 9van Nee R, Prasad R. OFDM for wireless multimedia communications[ M]. Boston: Artech House, 2000 : 1 - 60.
  • 10Frederiksen F B, Prasad R. An overview of OFDM and related techniques towards development of future wireless multimedia communications [ C ] // Radio and Wireless Conference. Piscataway: IEEE, 2002:19 - 22.

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系统工程与电子技术
2006年 第3期

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