Please use this identifier to cite or link to this item: https://doi.org/10.1109/LPT.2013.2285396
Title: Fiber nonlinearity tolerance of APSK modulated DFT-S OFDM systems
Authors: Li, X.
Zhong, W.-D.
Alphones, A.
Yu, C. 
Keywords: amplitude phase shift keying (APSK)
Orthogonal frequency division multiplexing (OFDM)
quadrature amplitude modulation (QAM)
Issue Date: 2013
Source: Li, X., Zhong, W.-D., Alphones, A., Yu, C. (2013). Fiber nonlinearity tolerance of APSK modulated DFT-S OFDM systems. IEEE Photonics Technology Letters 25 (23) : 2304-2307. ScholarBank@NUS Repository. https://doi.org/10.1109/LPT.2013.2285396
Abstract: Discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S OFDM) was proposed in coherent optical OFDM (CO-OFDM) to improve the fiber nonlinearity tolerance in CO-OFDM transmission systems. In this letter, we propose to apply amplitude phase shift keying (APSK) modulation in DFT-S OFDM to further improve the fiber nonlinearity tolerance. We investigate the effects of several parameters on the transmission performance to determine the optimal values of these parameters. Compared with 16 quadrature amplitude modulation modulated DFT-S OFDM and 16-APSK (4 and 12 constellation points in the respective first and second rings) modulated CO-OFDM, the optimized 16-APSK (6 and 10 constellation points in the respective first and second rings) modulated DFT-S OFDM extends the maximum transmission reach by {\sim}{12\%} and {\sim}{19\%} for both nondispersion managed and dispersion managed links, respectively. © 2013 IEEE.
Source Title: IEEE Photonics Technology Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/56050
ISSN: 10411135
DOI: 10.1109/LPT.2013.2285396
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