抑制OFDM信号PAPR的改进脉冲整形

doi:10.3969/j.issn.1000-436x.2012.12.020

通信学报 ›› 2012, Vol. 33 ›› Issue (12): 154-160.doi: 10.3969/j.issn.1000-436x.2012.12.020

• 学术通信 • 上一篇

抑制OFDM信号PAPR的改进脉冲整形

冯卓明,刘卫忠,陶雄飞,罗白云

华中科技大学光学与电子信息学院，湖北武汉 430074

出版日期:2012-12-25 发布日期:2017-07-15
基金资助:
国家自然科学基金资助项目;武汉市晨光计划基金资助项目

Improved pulse shaping for PAPR reduction of OFDM signal

Zhuo-ming FENG,Wei-zhong LIU,Xiong-fei TAO,Bai-yun LUO

School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China

Online:2012-12-25 Published:2017-07-15
Supported by:
The National Natural Science Foundation of China;Chen Guang Project of Wuhan

摘要/Abstract

摘要：

摘要：提出一种改进的Nyquist脉冲，可以提高OFDM信号PAPR的抑制性能，同时不降低系统的BER，频带利用率高。仿真结果表明，其综合性能明显优于传统的升余弦和反转指数脉冲，是一种低复杂度的有效解决方案。

关键词: 正交频分复用, 脉冲整形, 峰均比, 误比特率

Abstract:

An improved Nyquist pulse was presented.The proposed pulse waveform can significantly reduce the PAPR and keep the system BER invariant at the same time,but at the expense of a little spectrum loss.Simulation results show that the proposed shaping pulse can get better performance of PAPR compared to traditional raised cosine pulse and flipped-exponential pulse.It is an effective method with low complexity to reduced the PAPR of OFDM signal by pulse shapping with the proposed nyquist pulse.

Key words: OFDM, pulse shaping, PAPR, BER

冯卓明,刘卫忠,陶雄飞,罗白云. 抑制OFDM信号PAPR的改进脉冲整形[J]. 通信学报, 2012, 33(12): 154-160.

Zhuo-ming FENG,Wei-zhong LIU,Xiong-fei TAO,Bai-yun LUO. Improved pulse shaping for PAPR reduction of OFDM signal[J]. Journal on Communications, 2012, 33(12): 154-160.

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参考文献 13

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N	频带冗余率/%	PAPR0/dB
N=96	25	4.15
N=104	18.75	5.01
N=112	12.5	5.89
N=116	9.38	6.25
N=120	6.25	6.73
N=124	3.13	6.88
N=126	1.59	6.94

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抑制OFDM信号PAPR的改进脉冲整形

Improved pulse shaping for PAPR reduction of OFDM signal

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