摘要
部分传输序列(PTS)算法能够有效地降低OFDM通信系统的平均峰值功率比(PA-PR)。文中研究了哈达码矩阵及传统的μ率压缩算法,提出了一种新的能够有效的降低PAPR算法。提出的算法是基于传统的PTS算法,利用哈达码矩阵优化部分传输序列,结合μ率压缩算法进而降低OFDM系统的PAPR值。通过实验仿真证明,文中提出的算法能够降低OFDM系统的PAPR值,而且性能更加优越于单独的μ率压缩以及传统的PTS算法,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 orthogonal frequency division.This paper studies on the Hadamard matrix and the traditional μ-law compression algorithm,proposes a new algorithm that can effectively reduce the PAPR.The proposed algorithm is based on the traditional PTS algorithm,uses the Hadamard matrix optimizing the partial transmit sequences,combined with μ-law compression algorithms,thus reducing the PAPR of the OFDM system.The simulation shows that the proposed algorithm can reduce the PAPR value of the OFDM system,and the performance is more superior to separate μ-law compression and traditional PTS algorithm,has a good peak to average power ratio performance.
出处
《信息技术》
2011年第10期119-121,共3页
Information Technology
