High-cardinality geometrical constellation shaping for the nonlinear fibre channel
This paper presents design methods for highly efficient optimisation of geometrically shaped
constellations to maximise data throughput in optical communications. It describes methods …
constellations to maximise data throughput in optical communications. It describes methods …
Geometrically-shaped multi-dimensional modulation formats in coherent optical transmission systems
Shaping modulation formats in multi-dimensional (MD) space is an effective approach to
harvest spectral efficiency gains in both the additive white Gaussian noise (AWGN) channel …
harvest spectral efficiency gains in both the additive white Gaussian noise (AWGN) channel …
End-to-end learning of a constellation shape robust to channel condition uncertainties
Vendor interoperability is one of the desired future characteristics of optical networks. This
means that the transmission system needs to support a variety of hardware with different …
means that the transmission system needs to support a variety of hardware with different …
End-to-end deep learning for long-haul fiber transmission using differentiable surrogate channel
Z Niu, H Yang, H Zhao, C Dai, W Hu… - Journal of Lightwave …, 2022 - opg.optica.org
Recently, end-to-end deep learning (E2EDL) has been proposed for communication
systems to improve the overall performance of systems. In the domain of optical fiber …
systems to improve the overall performance of systems. In the domain of optical fiber …
End-to-end learning of a constellation shape robust to variations in SNR and laser linewidth
We propose an autoencoder-based geometric shaping that learns a constellation robust to
SNR and laser linewidth estimation errors. This constellation maintains shaping gain in …
SNR and laser linewidth estimation errors. This constellation maintains shaping gain in …
End-to-end optimization of constellation shaping for Wiener phase noise channels with a differentiable blind phase search
As the demand for higher data throughput in coherent optical communication systems
increases, we need to find ways to increase capacity in existing and future optical …
increases, we need to find ways to increase capacity in existing and future optical …
2048-QAM transmission at 15 GBd over 100 km using geometric constellation shaping
We experimentally investigated a pilot-aided digital signal processing (DSP) chain in
combination with high-order geometric constellation shaping to increase the achievable …
combination with high-order geometric constellation shaping to increase the achievable …
Physical realizations of multidimensional Voronoi constellations in optical communication systems
Multidimensional geometric shaping has been shown to outperform uniform quadrature
amplitude modulation (QAM) in optical communication systems but the complexity of symbol …
amplitude modulation (QAM) in optical communication systems but the complexity of symbol …
Quadrant multiplexing-based geometrically shaped four-dimensional modulation format for polarization multiplexed coherent optical communication system
X Yan, J Ma, J Liu, J Lu, X Zeng, M Luo - Optical Fiber Technology, 2023 - Elsevier
We present in detail the recently proposed novel geometric shaping four-dimensional (GS-
4D) modulation format based on quadrant multiplexing and evaluate the signal from various …
4D) modulation format based on quadrant multiplexing and evaluate the signal from various …
Comparison of physical realizations of multidimensional Voronoi constellations in single mode fibers
We investigate experimentally and numerically the impact of using different fiber dimensions
to spread out the 32-dimensional Voronoi constellations. We find similar performance in …
to spread out the 32-dimensional Voronoi constellations. We find similar performance in …