| SC-FDMA系统基于限幅技术降低峰均比的研究 |
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| 引用本文： | 陈茜,李一兵,叶方. SC-FDMA系统基于限幅技术降低峰均比的研究[J]. 黑龙江大学自然科学学报, 2009, 26(5) |
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| 作者姓名： | 陈茜 李一兵 叶方 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院,哈尔滨,150001;哈尔滨工程大学信息与通信工程学院,哈尔滨,150001;哈尔滨工程大学信息与通信工程学院,哈尔滨,150001 |
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| 基金项目： | 黑龙江省青年学术骨干支持计划(1151G075);;哈尔滨市科技创新人才研究专项基金项目(2008RFQXG025) |
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| 摘 要： | SC-FDMA是LTE上行链路的多址接入方案。SC-FDMA中的集中式频分多址(LFDMA)峰均比相对较高。分别通过硬限幅、软限幅和平滑限幅的方法,降低LFDMA的峰均比,并针对这三种方法的PAPR性能,抗噪声性能和带外辐射问题进行分析比较。仿真结果表明,在允许的带外辐射和抗噪声性能情况下,限幅法是一种简单、易于实现且能有效降低发送信号峰均比的方法。
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| 关 键 词： | SC-FDMA 限幅 峰均比 LTE |
PAPR reduction in SC-FDMA system by clipping technique |
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| CHEN Xi,LI Yi-bing,YE Fang. PAPR reduction in SC-FDMA system by clipping technique[J]. Journal of Natural Science of Heilongjiang University, 2009, 26(5) |
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| Authors: | CHEN Xi LI Yi-bing YE Fang |
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| Affiliation: | Information and Communication Engineering College;Harbin Engineering University;Harbin 150001;China |
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| Abstract: | SC-FDMA is the uplink multiple access scheme in LTE.Localized FDMA which is a special case of SC-FDMA signal has relatively high PAPR.PAPR of LFDMA signal is reduced by means of hard limiting,soft limiting and smooth limiting respectively.Analysis and comparisons of the PAPR,anti-band noise performance and out-of-band emission based on these three methods was made.The simulation results show that in the acceptable situation of bit error rate and out-of-band emission,clipping is a simple,easy approach which ... |
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| Keywords: | SC-FDMA clipping PAPR LTE |
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