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改进PTS算法降低OFDM峰均功率比的研究

Improved PTS scheme for PAPR reduction in OFDM system
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摘要 部分传输序列(PTS)算法能够有效的降低正交频分复用(OFDM)系统的峰值平均功率比(PAPR)。提出了一种改进部分传输序列(IPTS)模型,它是基于优化最佳相位因子加权之前的部分传输序列思想降低OFDM系统平均峰值功率比。利用这种模型,提出了一种基于哈达码矩阵优化的部分传输序列算法(H-IPTS)。实验仿真表明,H-IPTS算法以低的计算复杂度可以达到或优于传统PTS算法相当的效果,具有良好的峰值平均功率比性能。 Partial transmit sequence(PTS) scheme is an attractive technique for peak-to-average power ratio(PAPR) reduction in OFDM system.This paper presents an improved partial transmit sequences(IPTS) model which is based on before the best phase factor optimizing the weighted sequence scheme for the PAPR reduction.Based on the proposed scheme,This paper also proposes an improved PTS optimized with Hadamard matrix(H-IPTS) algorithm.The simulation results show that H-IPTS algorithm with lower computational complexity can be achieved or better than the traditional PTS,has a good peak to average power ratio performance.
作者 宫芳 何玉申
出处 《信息技术》 2010年第12期67-70,74,共5页 Information Technology
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参考文献13

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