| 混沌选择性映射降低MC-CDMA系统的峰均功率比 |
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| 引用本文： | 崔嵩,覃团发,陈光旨.混沌选择性映射降低MC-CDMA系统的峰均功率比[J].重庆邮电学院学报(自然科学版),2005,17(4):398-400. |
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| 作者姓名： | 崔嵩 覃团发 陈光旨 |
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| 作者单位： | [1]广西大学计算机与电子信息学院，广西南宁530004 [2]广西大学物理科学与工程技术学院，广西南宁530004 |
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| 基金项目： | 国家自然科学基金资助项目(10147201)，广西高校百名青年学科带头基金资助项目(桂教人[2002]467) |
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| 摘 要： | 选择性映射是降低MC-CDMA系统信号峰均功率比(PAPR)的一种有效方法。采用不同相位序列的选择性映射降低PAPR的效果是不同的。提出了将混沌序列作为相位序列来降低MC-CDMA系统的PAPR，研究结果表明混沌序列能有效地降低MC-CDMA系统的PAPR，并且效果优于当前所采用的Golay Complementary，Shapiro-Ru-din，Random等序列。发现Lyapunov指数越大，混沌序列降低MC-CDMA系统的PAPR效果越好。
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| 关 键 词： | 选择性映射 峰均功率比 混沌序列 |
Peak to average power reduction of MC-CDMA using chaotic selected mapping |
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| CUI Song.Peak to average power reduction of MC-CDMA using chaotic selected mapping[J].Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition),2005,17(4):398-400. |
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| Authors: | CUI Song |
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| Abstract: | Selected Mapping(SLM) is an effective method to reduce Peak-to-Average Power Ratio (PAPR) of MC-CDMA signal. Different phase sequences have different effects on reducing PAPR in SLM. In this paper, chaotic sequence is proposed as phase sequence to reduce PAPR of MC-CDMA .The research results demonstrate that chaotic sequence can effectively reduce PAPR and is superior to other phase sequences used currently, such as Golay Complementary,Shapiro-Rudin,Random, and so on.Also, we find that the chaotic sequences with greater Lyapunov exponent can reduce PAPR more effectively. |
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| Keywords: | selected mapping PAPR chaotic sequences |
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