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利用伪随机序列降低OFDM系统PAPR方法 被引量：1

Reduction of Peak to Average Power Radio of OFDM System with Pseudorandom Sequence
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摘要 提出一种基于伪随机序列降低正交频分多路复用系统发射信号的峰值功率与平均功率的峰均值比新方法。该方法通过伪随机序列矩阵扰乱发送序列,以此减小发送序列的相关特性,从而达到降低正交频分多路复用系统的发射信号的峰值功率与平均功率的峰均值比目的。仿真结果表明,该方法简单、实用、复杂度低,并能与其他方法联用。在子载波数较少时,可明显降低正交频分多路复用系统的发射信号的峰值功率与平均功率的峰均值比。 A new method for reducing Peak-to-Average Power Ratio (PAPR) in Orthogonal Frequency Division Multiplexing (OFDM) systems is proposed in this paper. A pseudorandom sequence matrix is adapted to reduce auto-correlation of the transmitting sequence. Simulation results verify the improved performance of PAPR using this approach. The method is simple, low complexity. And it is easier to combine the method with other PAPR reducing technique so as to further reduce the PAPR in OFDM system.
作者 黄润林 周克
机构地区 贵州大学电气工程学院
出处 《电子科技大学学报》 EI CAS CSCD 北大核心 2007年第S3期1515-1518,共4页 Journal of University of Electronic Science and Technology of China
关键词 非周期自相关函数 互补累积函数 峰均值比 伪随机序列 aperiodic auto-correlation function complementary cumulative distribution function peak to average power ratio pseudorandom sequence
分类号 TN919.3 [电子电信—通信与信息系统]
  • 相关文献

参考文献9

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二级参考文献16

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共引文献2

同被引文献10

  • 1Weinstein S B. The history of orthogonal frequency-division multiplexing [ J ]. Communications Magazine, 2009,47 ( 11 ) : 26-35.
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  • 3Jiang Tao, Wu Yiyan. An overview:Peak-to-average power ratio reduction techniques for OFDM signals[ J ]. IEEE Trans- actions on Broadcasting,2008,54 (2) :257-268.
  • 4Wang Yingming, Zhang Guodong, Wang Xiaodong. Polyphase codes for uplink OFDM-CDMA systems I J]. IEEE Transac- tions on Communications,2008,56 (3) :435-444.
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  • 9Pan Zongshan, Li Xiaomin. A novel synchronization algorithm for OFDM system based on training sequence added scramble code[ C ]//Proceedings of IEEE international conference on communications technology and applications. Beijing: IEEE, 2009:527-531.
  • 10马杨军,胡耀明.一种基于训练序列的改进的OFDM同步算法[J].光通信研究,2009(6):65-67. 被引量：5

引证文献1

电子科技大学学报
2007年 第S3期

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