| 一种OFDM系统中PAPR的抑制算法 |
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| 引用本文： | 张剑,王涛,周兴建.一种OFDM系统中PAPR的抑制算法[J].国际商务研究,2008,48(4):27-29. |
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| 作者姓名： | 张剑 王涛 周兴建 |
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| 作者单位： | 中国西南电子技术研究所 成都610036 |
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| 摘 要： | 为降低正交频分复用(OFDM)系统中发射信号的峰值功率,提出了在一个OFDM符号内使用两种信号星座图对二进制数据进行编码,通过在各个子载波处选用合理的信号星座图来实现对峰值均值功率比(PAPR)的抑制。由于算法不改变现有OFDM系统的实现结构,在不影响OFDM中其它信号处理性能的条件下,仿真表明算法能有效地降低系统的峰值均值功率比。
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| 关 键 词： | 正交频分复用 峰值均值功率比 信号星座图 |
| 修稿时间： | 2007/10/29 0:00:00 |
A PAPR Reduction Method for OFDM Systems |
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| ZHANG Jian,WANG Tao,ZHOU Xing-jian.A PAPR Reduction Method for OFDM Systems[J].International Business Research,2008,48(4):27-29. |
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| Authors: | ZHANG Jian WANG Tao ZHOU Xing-jian |
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| Abstract: | In order to reduce the peak power of radio signal in the orthogonal frequency division multiplexing(OFDM) systems,two constellations are used to modulate the binary data within an OFDM symbol.The peak-to-average power ratio(PAPR) of OFDM signal can be reduced by a reasonable arrangement of the two constellations among the subcarriers.The realization of the modulation scheme requires no structural change in current OFDM systems and has almost no effect on the other processing performance in OFDM systems.The computer simulation demonstrates that the proposed algorithm can obviously improve the PAPR performance of OFDM symbols. |
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| Keywords: | OFDM peak-to-average power ratio(PAPR) signal constellation |
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