Proceedings ArticleDOI
Trellis shaping for reduction of the peak-to-average power ratio in coherent optical OFDM systems
Stephan Hellerbrand,Bernhard Goebel,Norbert Hanik +2 more
- pp 1-3
TLDR
In this article, a frequency-domain method with good structural properties for reduction of the PAPR in coherent optical OFDM systems was proposed, and it was shown that the nonlinear threshold can be increased considerably at modest redundancy.Abstract:
We propose a frequency-domain method with good structural properties for reduction of the PAPR in coherent optical OFDM systems. Numerical results indicate that the nonlinear threshold can be increased considerably at modest redundancy.read more
Citations
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Proceedings ArticleDOI
PAPR reduction techniques for coherent optical OFDM transmission
TL;DR: This work reviews the most prominent PAPR reduction techniques that have been proposed for mitigating the impairments with regard to their reduction capability, computational complexity and redundancy.
Journal ArticleDOI
On Four-Wave Mixing Suppression in Dispersion-Managed Fiber-Optic OFDM Systems With an Optical Phase Conjugation Module
Vladimir Pechenkin,Ivan J. Fair +1 more
TL;DR: In this article, the application of optical phase conjugation (OPC) to coherent optical orthogonal frequency-division multiplexed (OFDM) systems is investigated, and the degrees of inter-subcarrier FWM suppression are estimated analytically for arbitrary dispersion map parameters.
Journal ArticleDOI
DFT-Precoded Coherent Optical OFDM With Hermitian Symmetry for Fiber Nonlinearity Mitigation
TL;DR: In this paper, the authors proposed a discrete Fourier transform (DFT)-precoded coherent optical OFDM combined with a Hermitian symmetry system, which is a combination of the DFT-spread OFDM and the Hermitians symmetry of DFT.
Journal ArticleDOI
Realization of optical OFDM using time lenses and its comparison with optical OFDM using FFT
Dong Yang,Shiva Kumar +1 more
TL;DR: Results show that the coherent OFDM using time lenses has almost the same performance as that using FFT when the electrical driving message signal voltages are low so that MZM operates in the linear region.
Proceedings ArticleDOI
Link-aware precoding for nonlinear optical OFDM transmission
TL;DR: It is shown that signal shaping schemes for the reduction of nonlinearities in optical OFDM systems need to take into account the signal evolution along the dispersive link.
References
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Journal ArticleDOI
Trellis shaping
TL;DR: Trellis shaping, a method of selecting a minimum-weight sequence from an equivalence class of possible transmitted sequences by a search through the trellis diagram of a shaping convolutional code C/sub s/.
Journal ArticleDOI
A novel trellis-shaping design with both peak and average power reduction for OFDM systems
TL;DR: A new trellis shaping design is proposed for reducing the peak-to-average power ratio of the bandlimited orthogonal frequency-division multiplexing (OFDM) signals based on recursive minimization of the autocorrelation sidelobes of an OFDM data sequence.
Proceedings ArticleDOI
On the Effect of FWM in Coherent Optical OFDM Systems
TL;DR: In this paper, the channel capacity of CO-OFDM systems limited by FWM was derived and peak-to-average-power-ratio reduction techniques were used for FWM mitigation.
Proceedings ArticleDOI
Fiber nonlinearity mitigation by PAPR reduction in coherent optical OFDM systems via active constellation extension
TL;DR: In this article, the authors considered active constellation extension to reduce the PAPR in CO-OFDM systems and found that the nonlinearity threshold was improved by 1.5 dB at a reach of 400 km SSMF fiber.
Proceedings ArticleDOI
Reduced complexity precoding based peak-to-average power ratio reduction applied to optical direct-detection OFDM
TL;DR: DCT based precoding is proposed for PAPR reduction to improve the performance of optical OFDM at limited precoding complexity and the resultant OSNR performance is shown.