| 用双层PTS算法降低OFDM峰均功率比 |
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| 引用本文： | 王兰勋,杨康,许亚田,李可一. 用双层PTS算法降低OFDM峰均功率比[J]. 河北大学学报(自然科学版), 2009, 29(6): 647. DOI: 10.3969/j.issn.1000-1565.2009.06.021 |
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| 作者姓名： | 王兰勋 杨康 许亚田 李可一 |
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| 作者单位： | 河北大学,电子信息工程学院,河北,保定,071002;北京林业大学,工学院,北京,100083 |
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| 基金项目： | 河北大学科技攻关项目 |
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| 摘 要： | 针对正交频分复用(OFDM)系统中峰均功率比(PAPR)高的问题,提出了一种双层PTS算法来降低PAPR.该算法通过把子载波的数据分成2层,每层都分别使用了次优PTS算法来对该层的PAPR进行优化,从而降低整个OFDM系统的PAPR.仿真结果表明,双层PTS算法大大降低系统的复杂性,同时使PAPR得到了更好地抑制.
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| 关 键 词： | 正交频分复用 峰均比 子载波 双层PTS |
Using the Algorithm of Dual Layered PTS to Reduce PAPR in OFDM System |
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| WANG Lan-xun,YANG Kang,XU Ya-tian,LI Ke-yi. Using the Algorithm of Dual Layered PTS to Reduce PAPR in OFDM System[J]. Journal of Hebei University (Natural Science Edition), 2009, 29(6): 647. DOI: 10.3969/j.issn.1000-1565.2009.06.021 |
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| Authors: | WANG Lan-xun YANG Kang XU Ya-tian LI Ke-yi |
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| Abstract: | For the problem that the peak-to-average-power ratio (PAPR) of the orthogonal freque- ntcy division multiplexing (OFDM) system is high, the dual layered phase sequencing (DLPS) method is made to reduce the PAPR. The method divides the sub-carrier into two layers and each layer uses the suboptimal PTS to reduce the PAPR, so the method reduces the PAPR of the whole OFDM system. The results of the simulation show that the algorithm of dual layered PTS greatly reduced the complexity of the system, while PAPR has been in a situation of better control. |
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| Keywords: | orthogonal frequency division multiplexing (OFDM) peak-to- average -power ratio (PAPR) sub-carrier dual layered phase sequencing (DLPS) |
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