Performance Investigation of DFT-Spread OFDM Signal for Short Reach Communication Systems Beyond NG-PON2

Performance Investigation of DFT-Spread OFDM Signal for Short Reach Communication Systems Beyond NG-PON2

In this paper, we investigate the performance of a discrete Fourier transform (DFT)-spread OFDM signal in an intensity-modulation/direct-detection system. We find that DFT-spread OFDM could reduce the peak-to-average power ratio effectively and hence improve the nonlinearity tolerance. Furthermore,...

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Bibliographic Details
Main Authors: Yupeng Li, Jiawei Han, Xiaonan Zhao
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
DFT-spread
OFDM
PAPR
NG-PON2
Online Access:https://ieeexplore.ieee.org/document/8651491/
Description
Summary:In this paper, we investigate the performance of a discrete Fourier transform (DFT)-spread OFDM signal in an intensity-modulation/direct-detection system. We find that DFT-spread OFDM could reduce the peak-to-average power ratio effectively and hence improve the nonlinearity tolerance. Furthermore, DFT-spread OFDM also improves the receiver sensitivity performance and shows good robustness to nonlinearity distortion caused by low-bit resolution digital-to-analog converters and analog-to-digital converters. The measured bit error ratio of DFT-spread OFDM signal after a 40-km standard single mode fiber is well less than the forward-error correction limit of 3.8 &#x00D7; 10<sup>-3</sup>.
ISSN:2169-3536

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