Combining discrete cosine transform with clipping for PAPR reduction in intensity-modulated OFDM systems

In this paper, the peak-to-average power ratio （PAPR） of orthogonal frequency division multiplexing （OFDM） signal is reduced by combining the discrete cosine transform （DCT） with clipping in optical intensity-modulated direct-detection （IM/DD） OFDM systems. First, the data are transformed into new m...

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Bibliographic Details
Published inOptoelectronics letters Vol. 10; no. 5; pp. 356 - 359
Main Author 王中鹏 陈寿法 周扬 陈明 唐进 陈林
Format Journal Article
LanguageEnglish
Published Heidelberg Tianjin University of Technology 01.09.2014
Subjects
Lasers
OFDM信号
OFDM系统
Optical Devices
Optics
PAPR
Photonics
Physics
Physics and Astronomy
光强度调制
峰均功率比
改造
正交频分复用
离散余弦变换
Orthogonal Frequency Division Multiplex
Orthogonal Frequency Division Multiplex Signal
Discrete Cosine Transform
Orthogonal Frequency Division Multiplex System
PAPR Reduction
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ISSN1673-1905
1993-5013
DOI10.1007/s11801-014-4121-8

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Summary:In this paper, the peak-to-average power ratio （PAPR） of orthogonal frequency division multiplexing （OFDM） signal is reduced by combining the discrete cosine transform （DCT） with clipping in optical intensity-modulated direct-detection （IM/DD） OFDM systems. First, the data are transformed into new modified data by DCT. Second, the proposed scheme utilizes the clipping technique to further reduce the PAPR of OFDM signal. We experimentally demonstrate that the optical OFDM transmission system with this proposed scheme can achieve significant performance improve- ment in terms of PAPR and bit error rate （BER） compared with the original optical OFDM systems.
Bibliography:WANG Zhong-peng , CHEN Shou-fa , ZHOU Yang , CHEN Ming , TANG Jin , and CHEN Lin （ 1. School of Information and Electronic Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China 2. State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China 3. Key Laboratory for Micro-/Nano-Optoelectronic Devices, Ministry of Education, College of Information Science and Engineering, Hunan University, Changsha 410082, China）
12-1370/TN
In this paper, the peak-to-average power ratio （PAPR） of orthogonal frequency division multiplexing （OFDM） signal is reduced by combining the discrete cosine transform （DCT） with clipping in optical intensity-modulated direct-detection （IM/DD） OFDM systems. First, the data are transformed into new modified data by DCT. Second, the proposed scheme utilizes the clipping technique to further reduce the PAPR of OFDM signal. We experimentally demonstrate that the optical OFDM transmission system with this proposed scheme can achieve significant performance improve- ment in terms of PAPR and bit error rate （BER） compared with the original optical OFDM systems.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-014-4121-8