| 降低OFDM系统峰均比的改进算法研究 |
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| 引用本文： | 王可霞,张 敏,陈 磊,等.降低OFDM系统峰均比的改进算法研究[J].无线电通信技术,2014(1):45-47. |
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| 作者姓名： | 王可霞 张 敏 陈 磊 等 |
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| 作者单位： | 辽宁工业大学电子与信息工程学院,辽宁锦州121001 |
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| 摘 要： | 针对正交频分复用(OFDM)系统的高峰均功率比(PAPR)问题,在对部分传输序列(PTS)算法和限幅法的基本原理进行简要介绍的基础上,提出了一种用哈达玛矩阵初始化翻转迭代PTS初始搜索相位的改进算法,将输出信号通过限幅处理进一步降低OFDM系统的峰均功率比。仿真结果表明,联合算法有效降低了系统的PAPR,证明了有效性。
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| 关 键 词： | 正交频分复用 峰均功率比 部分传输序列 哈达玛矩阵 |
Researchon Improved Algorithm of PAPR Reduction for OFDM System |
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| WANG Ke-xia,ZHANG Min,CHEN Lei,ZHAO Rui-di.Researchon Improved Algorithm of PAPR Reduction for OFDM System[J].Radio Communications Technology,2014(1):45-47. |
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| Authors: | WANG Ke-xia ZHANG Min CHEN Lei ZHAO Rui-di |
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| Affiliation: | ( College of Electronics and Information Engineering, Liaoning University of Technology, Jinzhou Liaoning 121001, China) |
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| Abstract: | To overcome the problem of high Peak-to-Average Power Ratio （PAPR） in orthogonal frequency division multiplexing （OFDM） system,this paper proposes an improved algorithm that uses Hadamard matrix to initialize initial phase of the iterative PTS based on brief introduction of basic principle of traditional partial transmit sequence （PTS） methods and clipping algorithm,which can further reduce the PAPR of OFDM by combining clipping. The simulation results show that the combined algorithm can effectively improve PAPR performance of the system and prove the effectiveness of this method. |
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| Keywords: | OFDM PAPR PTS Hadamard matrix |
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