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

Abstract

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 improvement in terms of PAPR and bit error rate (BER) compared with the original optical OFDM systems.

Keywords

Orthogonal Frequency Division Multiplex / Discrete Cosine Transform / Orthogonal Frequency Division Multiplex System / Orthogonal Frequency Division Multiplex Signal / PAPR Reduction

References

[1] ArmstrongJ. Journal of Lightwave Technology, 2009, 27: 189

[2] ShiehW, BaoH, TangY. Optics Express, 2006, 16: 841

[3] ArmstrongJOFDM: From Copper and Wireless to Optical, Optical Fiber Communication ConferenceOptical Society of America Technical Digest, 2008,

[4] TruongT, ArzelM, LinH, JahanB, CharbonnierB, JezequelMPAPR Reduction Using Continuous-Tone Reservation Technique in Optical OFDM IMDD TransmissionsOptical Fiber Communication Conference, JTh2A.67, 2013,

[5] ZhangX, TangY, HuangG, HuangH-q, NiG-q. Journal of Optoelectronics·Laser, 2013, 24: 698

[6] YuanJ-g, HuY-x, HeQ-p, LiangT, WangY. Journal of Optoelectronics·Laser, 2012, 23: 1738

[7] GaoY, YuJ, XiaoJ, CaoZ, LiF, ChenL. Journal of Lightwave Technology, 2011, 29: 2138

[8] XiaoJ, YuJ, LiX, TangQ, ChenH, LiF, CaoZ, ChenL. IEEE/OSA Journal of Optical Communications and Networking, 2012, 4: 709

[9] RanjhaB, KavehradMPrecoding Techniques for PAPR Reduction in Asymmetrically Clipped OFDM Based Optical Wireless SystemProc. SPIE 8645, Broadband Access Communication Technologies VII, 2013, 86450R

[10] WangZ, XiaoJ, LiF, ChenL. Optoelectronics Letters, 2011, 7: 363

[11] SoobumC H O, ParkS KHybrid DCT/DST Precoding Scheme for the PAPR Reduction of OFDM SystemsIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2013, 96: 296

[12] BaigI, JeotiVDCT Precoded SLM Technique for PAPR Reduction in OFDM SystemsInternational Conference on Intelligent and Advanced Systems, 2010, 1

[13] WangZ, ZhangS. Optoelectronics Letters, 2013, 9: 213

[14] IEEE Standard for Local and Metropolitan Area Network, Part 16: Air Interface for Fixed Broadband Wireless Access Systems, IEEE Std. 802.16-2004.

[15] ProakisJ G. Digital Communications, 1995, New York, McGraw-Hill

[16] SlimaneB. IEEE Transactions on Vehicular Technology, 2007, 56: 686

[17] LiuS, MengX, ChenX, ZhouXA Novel CD Compensation Scheme Using Differential Pre-coding in CO-OFDM SystemInternational Conference on Information Photonics and Optical Communications, 2011, 1

[18] YuanW, HaoP, XuCMatrix Factorization for Fast DCT AlgorithmsIEEE International Conference on Acoustics, Speech and Signal Processing, 2006, 3: 948

This work has been supported by the National Natural Science Foundation of China (No.51376162), the Open Fund of the State Key Laboratory of Millimeter Waves (Southeast University, Ministry of Education, China) (No.K201214), the Zhejiang Provincial Natural Science Foundation of China (No.LY13F050005), and the Key Industrial Project of Special Major Science and Technology of Zhejiang Province (No.2012C11016-2).