Introducing enumerative sphere shaping for optical communication systems with short blocklengths
Probabilistic shaping based on constant composition distribution matching (CCDM) has
received considerable attention as a way to increase the capacity of fiber optical …
received considerable attention as a way to increase the capacity of fiber optical …
Hierarchical distribution matching for probabilistically shaped coded modulation
The implementation difficulties of combining distribution matching (DM) and dematching
(invDM) for probabilistic shaping (PS) with soft-decision forward error correction (FEC) …
(invDM) for probabilistic shaping (PS) with soft-decision forward error correction (FEC) …
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 …
Polarization-ring-switching for nonlinearity-tolerant geometrically shaped four-dimensional formats maximizing generalized mutual information
In this paper, a new four-dimensional 64-ary polarization ring switching (4D-64PRS)
modulation format with a spectral efficiency of 6 bit/4D-sym is introduced. The format is …
modulation format with a spectral efficiency of 6 bit/4D-sym is introduced. The format is …
Analytical model of nonlinear fiber propagation for general dual-polarization four-dimensional modulation formats
Coherent dual-polarization (DP) optical transmission systems encode information on the
four available degrees of freedom of an optical field: the two polarization states, each with …
four available degrees of freedom of an optical field: the two polarization states, each with …
Introducing 4D geometric shell shaping for mitigating nonlinear interference noise
S Goossens, YC Gültekin, O Vassilieva… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Four dimensional geometric shell shaping (4D-GSS) is introduced as an approach for
closing the nonlinearity-caused shaping gap. This format is designed at the spectral …
closing the nonlinearity-caused shaping gap. This format is designed at the spectral …
Analysis and experimental demonstration of orthant-symmetric four-dimensional 7 bit/4D-sym modulation for optical fiber communication
We propose a new four-dimensional orthant-symmetric 128-ary modulation format (4D-
OS128) with a spectral efficiency of 7 bit/4D-sym. The proposed format fills the gap between …
OS128) with a spectral efficiency of 7 bit/4D-sym. The proposed format fills the gap between …
Power-efficient Voronoi constellations for fiber-optic communication systems
Voronoi constellations (VCs) are considered as an effective geometric shaping method due
to their high power efficiencies and low complexity. In this paper, the performance of 16-and …
to their high power efficiencies and low complexity. In this paper, the performance of 16-and …
Increasing achievable information rates via geometric shaping
Increasing Achievable Information Rates via Geometric Shaping Page 1 Increasing Achievable
Information Rates via Geometric Shaping Bin Chen(1), Chigo Okonkwo(1), Hartmut …
Information Rates via Geometric Shaping Bin Chen(1), Chigo Okonkwo(1), Hartmut …
Huffman-coded sphere shaping for extended-reach single-span links
Huffman-coded sphere shaping (HCSS) is an algorithm for finite-length probabilistic
constellation shaping, which provides nearly optimal energy efficiency at low …
constellation shaping, which provides nearly optimal energy efficiency at low …