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ZTE Communications ›› 2012, Vol. 10 ›› Issue (3): 16-21.

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Flipped-Exponential Nyquist Pulse Technique to Optimize PAPR in Optical Direct-Detection OFDM Systems

Jiangnan Xiao, Zizheng Cao, Fan Li, Jin Tang, and Lin Chen   

  1. Hunan University, Changsha 410082, China
  • Received:2011-12-15 Online:2012-09-25 Published:2012-09-25
  • About author:Jiangnan Xiao (xjn2302@163.com) is pursuing his PhD degree at Hunan University, Changsha, China. His research interests include impairment compensation of orthogonal frequency-division multiplexing (OFDM) radio-over-fiber system, signal processing—including synchronization, equalization coding—in coherent OFDM systems, and PDM.

    Zizheng Cao (oiganngeo@163.com) received his ME degree in information and communication engineering from Hunan University, Changsha, China, in 2010. He is currently pursuing his PhD degree at Hunan University. His research interests include impairment compensation of orthogonal frequency-division multiplexing (OFDM) radio-over-fiber systems, and high-spectra efficiency direct-detection OFDM transmission systems.

    Fan Li (fanli0809@sina.com) is pursuing his PhD degree at Hunan University, Changsha, China. His research interests include optical orthogonal frequency-division multiplexing (OFDM) transmission, and impairment compensation in OFDM radio-over-fiber systems.

    Jin Tang (gltangjin@hotmail.com) is pursuing his PhD degree at Hunan University, Changsha, China. His research interests include optical orthogonal frequency-division multiplexing (OFDM) transmission, signal processing in coherent OFDM systems, and coherent optical communication systems.

    Lin Chen (liliuchen12@126.com) received his PhD degree in optical communications from Beijing University of Posts and Telecommunications in June 2004. He is currently a professor at Hunan University, Changsha, China. He has authored or coauthored more than 40 journal papers. His research interests include polarization-mode dispersion compensation, new modulation format techniques, radio over fiber, and coherent optical communication systems.

Flipped-Exponential Nyquist Pulse Technique to Optimize PAPR in Optical Direct-Detection OFDM Systems

Jiangnan Xiao, Zizheng Cao, Fan Li, Jin Tang, and Lin Chen   

  1. Hunan University, Changsha 410082, China
  • 作者简介:Jiangnan Xiao (xjn2302@163.com) is pursuing his PhD degree at Hunan University, Changsha, China. His research interests include impairment compensation of orthogonal frequency-division multiplexing (OFDM) radio-over-fiber system, signal processing—including synchronization, equalization coding—in coherent OFDM systems, and PDM.

    Zizheng Cao (oiganngeo@163.com) received his ME degree in information and communication engineering from Hunan University, Changsha, China, in 2010. He is currently pursuing his PhD degree at Hunan University. His research interests include impairment compensation of orthogonal frequency-division multiplexing (OFDM) radio-over-fiber systems, and high-spectra efficiency direct-detection OFDM transmission systems.

    Fan Li (fanli0809@sina.com) is pursuing his PhD degree at Hunan University, Changsha, China. His research interests include optical orthogonal frequency-division multiplexing (OFDM) transmission, and impairment compensation in OFDM radio-over-fiber systems.

    Jin Tang (gltangjin@hotmail.com) is pursuing his PhD degree at Hunan University, Changsha, China. His research interests include optical orthogonal frequency-division multiplexing (OFDM) transmission, signal processing in coherent OFDM systems, and coherent optical communication systems.

    Lin Chen (liliuchen12@126.com) received his PhD degree in optical communications from Beijing University of Posts and Telecommunications in June 2004. He is currently a professor at Hunan University, Changsha, China. He has authored or coauthored more than 40 journal papers. His research interests include polarization-mode dispersion compensation, new modulation format techniques, radio over fiber, and coherent optical communication systems.

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Abstract: In this paper, we describe a novel technique based on the flipped-exponential (FE) Nyquist pulse method for reducing peak-to-average power ratio (PAPR) in an optical direct-detection orthogonal frequency-division multiplexing (DD-OFDM) system. The technique involves proper selection of the FE Nyquist pulses for shaping the different subcarriers of the OFDM. We apply this technique to a DD-OFDM transmission system to significantly reduce PAPR. We also investigate the sensitivity of a received OFDM signal with strong nonlinearity in a standard single-mode fiber (SMF).

Key words: optical fiber communication, orthogonal frequency-division multiplexing (OFDM), flipped-exponential Nyquist pulse, PAPR

摘要： In this paper, we describe a novel technique based on the flipped-exponential (FE) Nyquist pulse method for reducing peak-to-average power ratio (PAPR) in an optical direct-detection orthogonal frequency-division multiplexing (DD-OFDM) system. The technique involves proper selection of the FE Nyquist pulses for shaping the different subcarriers of the OFDM. We apply this technique to a DD-OFDM transmission system to significantly reduce PAPR. We also investigate the sensitivity of a received OFDM signal with strong nonlinearity in a standard single-mode fiber (SMF).

关键词: optical fiber communication, orthogonal frequency-division multiplexing (OFDM), flipped-exponential Nyquist pulse, PAPR