Results 41 to 50 of about 85,197 (284)
IEEE Access, 2019 A probabilistic shaping method based on reduced-exponentiation subset indexing and honeycomb-structured constellation optimization is proposed to compress the number of signal points in the constellation, so that the total number doesn't fit the ...
Xiangyu Wu +8 more
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Flexible Probabilistic Shaping PON Based on Ladder-Type Probability Model
IEEE Access, 2020 We firstly propose a novel flexible multi-rate passive optical network (PON) employing ladder-type probabilistic shaping (PS) to enable adjustable and flexible multi-rate access without changing the modulation formats.
Ying Zhang +4 more
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Experimental Verification of Rate Flexibility and Probabilistic Shaping by 4D Signaling [PDF]
, 2018 The rate flexibility and probabilistic shaping gain of $4$-dimensional signaling is experimentally tested for short-reach, unrepeated transmission. A rate granularity of 0.5 bits/QAM symbol is achieved with a distribution matcher based on a simple look ...
Böcherer, Georg +6 more
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On the Probabilistic Shaping and Geometric Shaping in Optical Communication Systems
IEEE Access, 2019 We introduce and compare typical shaping schemes suitable for optical communications. The geometrically shaped-quadrature amplitude modulation (GS-QAM) formats are characterized by the non-equidistant spacing of constellation points, transmitted ...
Zhen Qu, Ivan B. Djordjevic
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IEEE Photonics Journal, 2023 In this letter, we propose a novel and straightforward scheme for Q-band (33–50 GHz) millimeter-wave signal generation enabled by a Mach-Zehnder modulator (MZM)-based joint algorithm, which combines probabilistic shaping (PS) and precoding ...
Hengxin Yan +15 more
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Constellation Shaping for WDM systems using 256QAM/1024QAM with Probabilistic Optimization [PDF]
, 2016 In this paper, probabilistic shaping is numerically and experimentally investigated for increasing the transmission reach of wavelength division multiplexed (WDM) optical communication system employing quadrature amplitude modulation (QAM).
Da Ros, Francesco +7 more
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IEEE Photonics Journal, 2022 In this paper, we propose a novel carrier-less amplitude/phase modulation with probabilistic shaping based on the Lorenz model and superposition method (LS-PS-CAP).
Yu Gu +8 more
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Two-Dimensional Constellation Shaping in Fiber-Optic Communications
Applied Sciences, 2019 Constellation shaping has been widely used in optical communication systems. We review recent advances in two-dimensional constellation shaping technologies for fiber-optic communications. The system architectures that are discussed include probabilistic
Zhen Qu +2 more
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Probabilistic Eigenvalue Shaping for Nonlinear Fourier Transform Transmission [PDF]
, 2018 We consider a nonlinear Fourier transform (NFT)-based transmission scheme, where data is embedded into the imaginary part of the nonlinear discrete spectrum. Inspired by probabilistic amplitude shaping, we propose a probabilistic eigenvalue shaping (PES)
Amat, Alexandre Graell i +3 more
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On Symbol Error Performance of Probabilistic Shaping in Noise-Limited and Fading Channels
IEEE Open Journal of the Communications Society, 2023 In this work, we present symbol error performance analysis of probabilistic shaping (PS) for wireless communications in noise-limited and fading channels. Two fading models considered are the Rayleigh and log-normal fading channels.
Tilahun Zerihun Gutema +2 more
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