| OFDM系统中降峰均比研究及PTS改进算法 |
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| 引用本文： | 何维武,冯辉.OFDM系统中降峰均比研究及PTS改进算法[J].通信技术,2011,44(1):6-7,10. |
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| 作者姓名： | 何维武 冯辉 |
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| 作者单位： | 重庆邮电大学,通信与信息工程学院,重庆,400065 |
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| 摘 要： | 正交频分复用（OFDM）技术在解决无线移动通信系统中显示了许多特点,如抗多路径衰落和频际间的干扰等。然而,OFDM系统中一个最主要的瓶颈在于OFDM信号的峰均功率比（PAPR,Peak-to-Average Power Ratio）很大,因而容易导致OFDM信号的交调失真和系统性能的下降。如何有效地解决OFDM系统中的峰均功率比是亟待解决的问题。为此,提出一种新的PTS（部分传输序列）改进算法。
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| 关 键 词： | 正交频分复用 峰均比 选择映射 部份序列传送法 |
Study on Technology and Improved PTS Algorithm for PAPR Reduction in OFDM System |
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| HE Wei-wu,FENG Fei.Study on Technology and Improved PTS Algorithm for PAPR Reduction in OFDM System[J].Communications Technology,2011,44(1):6-7,10. |
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| Authors: | HE Wei-wu FENG Fei |
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| Affiliation: | HE Wei-wu,FENG Fei(Institute of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | Orthogonal Frequency Division Multiplexing(OFDM) is an effective transmission scheme for coping with the impairment,such as co-channel interference,serve multi-path-fading and impulsive parasitic noise.However,a major bottleneck of OFDM system is the high Peak-to-Average Power Ratio(PAPR) of the OFDM signal,which would cause the inter-modulation distortion and the system performance degradation.How to effectively reduce PAPR of input OFDM signal of the amplifier thus becomes an important issue,which is necessarily to be addressed in OFDM systems.So,an improved PTS algorithm is proposed. |
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| Keywords: | OFDM PAPR SLM PTS |
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