Improved real-valued gentic algorithm of PTS technique for PAPR reducetion in OFDM system

Abstract

Abstract: In order to reduce the Peak to Average Power Ratio（PAPR） of Orthogonal Frequency Division Multiplexing（OFDM） system and develop the resource of Power Line Communication（PLC） effectively, this paper proposes a new Partial Transmit Sequence（PTS） technique based on genetic algorithm. Traditional genetic algorithm?with the binary coding?is?complicated, and?takes?up?a lot of spaces, ?using a new?real-coded?genetic operators?on?the?real number field.?The?simulation results show that?the?algorithm operation?is?simple?convergence effect.

Key words: Orthogonal Frequency Division Multiplexing（OFDM）, Peak to Average Power Ratio（PAPR）, Power Line Communication（PLC）, Real-Valued?Genetic?Algorithm（RVGA）, Partial Transmit Sequence（PTS）

摘要： 为有效降低电力线通信正交频分复用系统峰均功率比问题，以最大效率开发利用电力线通信资源，提出了一种改进的基于遗传算法的部分传输序列技术。传统的遗传算法采用二进制编码，计算繁复且占用大量的空间，因此采用一种新的实数编码方法，在实数域上进行遗传运算。仿真结果证明，算法操作简便且收敛效果好。

关键词: 正交频分复用技术, 峰均功率比, 电力线通信, 实值遗传算法, 部分传输序列

PENG Jishen, MENG Gengle. Improved real-valued gentic algorithm of PTS technique for PAPR reducetion in OFDM system[J]. Computer Engineering and Applications, 2012, 48(31): 73-77.

彭继慎，孟更乐. 降低OFDM系统峰均比的改进实值遗传PTS算法[J]. 计算机工程与应用, 2012, 48(31): 73-77.

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Improved real-valued gentic algorithm of PTS technique for PAPR reducetion in OFDM system

降低OFDM系统峰均比的改进实值遗传PTS算法

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