| Simulation on Peak-to-Average Power Ratio for Orthogonal Frequency Division Multiplexing |
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| 作者姓名： | SHAN Weifeng MENG Baohong LIU Ningning LI Hui ZHANG Hongwei |
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| 作者单位： | Department of Command, Communication and Command Academy, Wuhan 430010, Hubei, China |
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| 基金项目： | Supported by the Communication Department of General Staff （Project 916） |
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| 摘 要： | Clipping is a simple and convenient PAPR （peak-to-average power ratio） reduction method for high speed OFDM （orthogonal frequency division multiplexing） communication system. In this paper, we propose a new PAPR reduction method for Wireless-MAN（metropolitan area network）-OFDM system based on IEEE 802.16, which is over-sampling clipping arithmetic. Simulation and performance of the over-samples clipping＇s PAPR reduction capability, BER effect is given. The simulation indicates that the PAPR of at least 99.9% OFDM symbol is below 6dB after 2 Nyquist rate clipping, and the performance of BER has 1dB SNR（signal noise ratio） loss. The results prove that this method has better capacity to reducing PAPR. So it can be well used in WMAN-OFDM system.
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| 关 键 词： | OFDM 平均功率 模拟 PAPR |
| 文章编号： | 1007-1202（2006）06-1873-04 |
| 收稿时间： | 2006-05-20 |
Simulation on peak-to-average power ratio for orthogonal frequency division multiplexing |
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| SHAN Weifeng MENG Baohong LIU Ningning LI Hui ZHANG Hongwei.Simulation on Peak-to-Average Power Ratio for Orthogonal Frequency Division Multiplexing[J].Wuhan University Journal of Natural Sciences,2006,11(6):1873-1876. |
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| Authors: | Shan Weifeng Meng Baohong Liu Ningning Li Hui Zhang Hongwei |
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| Institution: | (1) Department of Command, Communication and Command Academy, 430010 Wuhan, Hubei, China |
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| Abstract: | Clipping is a simple and convenient PAPR (peak-to-average power ratio) reduction method for high speed OFDM (orthogonal frequency
division multiplexing) communication system. In this paper, we propose a new PAPR reduction method for Wireless-MAN(metropolitan
area network)-OFDM system based on IEEE 802. 16, which is over-sampling clipping arithmetic. Simulation and performance of
the over-samples clipping's PAPR reduction capability, BER effect is given. The simulation indicates that the PAPR of at least
99.9% OFDM symbol is below 6dB after 2 Nyquist rate clipping, and the performance of BER has 1dB SNR (signal noise ratio)
loss. The results prove that this method has better capacity to reducing PAPR. So it can be well used in WMAN-OFDM system.
Foundation item: Supported by the Communication Department of General Staff (Project 916).
Biography: SHAN Weifeng (1975-), male, Ph. D. candidate, research direction:neural network, traffic model. |
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| Keywords: | peak-to-average power ratio OFDM(orthogonal frequency divisior multiplexing) clipping |
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