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MC-CDMA系统中信号的峰均功率比 被引量：4

Peak-to-Average Power Ratio of Signal in MC-CDMA System
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摘要 MC-CDMA系统信号的峰均功率比远大于单载波系统.B.M.Popovic对MC-CDMA系统中的扩频码进行了分析,通过数值模拟表明,Zadoff-Chu序列具有最低的峰均功率比,是用于MC-CDMA中的最佳候选.本文通过理论推导得出选用任意长度的Zadoff-Chu序列作为MC-CDMA系统的扩频码,其峰均功率比均不超过3 dB.对长度为32的Zadoff-Chu序列扩频和Golay互补序列扩频的MC-CDMA信号进行了比较,其峰均功率比分别为3 dB和6 dB. The ratio of peak and average power in MC-CDMA system is much larger than in single carrier system. B.M. Popovic analyzed the spreading sequences for MC-CDMA system, it is shown that Zadoff-Chu sequences has the lowest PAPR, and is a promising candidate for the selection of MC-CD- MA sequences. This paper contains a theory that using Zadoff-Chu sequences as spreading codes for MC-CDMA systems, the PAPR is upper bounded by 3dB regardless of the length of the spreading code. We also present the PAPR of Zadoff-Chu and Golay complementary sequences, 32 in length, spreading MC-CDMA, which are 3 dB and 6 dB separately.
作者 邵源渊 杨维 贾怀义
机构地区 北京交通大学电子信息工程学院
出处 《北京交通大学学报》 EI CAS CSCD 北大核心 2005年第5期43-46,共4页 JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金 国家自然科学基金资助项目(60372014) 东南大学移动通信国家重点实验室开放基金资助课题(A101)
关键词 多载波CDMA 峰均功率比 ZADOFF-CHU序列 MC-CDMA peak-to-average power ratio Zadoff-Chu sequence
分类号 TN929.533 [电子电信—通信与信息系统]
  • 相关文献

参考文献11

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共引文献4

同被引文献23

  • 1颜彪,夏晓南,杨娟,薛波.OFDM信号PAPR分布的一种上边界[J].无线电通信技术,2004,30(5):28-29. 被引量：1
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引证文献4

二级引证文献8

北京交通大学学报
2005年 第5期

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