On the probabilistic shaping and geometric shaping in optical communication systems

Z Qu, IB Djordjevic - IEEE Access, 2019 - ieeexplore.ieee.org
shaping gain over regular/PS-16QAM in a wide region of … GS-64QAM is much more
sensitive to the implementation and … with different entropies, in order to show the best shaping

Probabilistic constellation shaping for optical fiber communications

J Cho, PJ Winzer - Journal of Lightwave Technology, 2019 - opg.optica.org
… tical fiber communications experiments. PCS provides both finegrained rate adaptability and
energy efficiency (sensitivity) gainsdifferent from probabilistic constellation shaping in that a …

Does probabilistic constellation shaping benefit IM-DD systems without optical amplifiers?

D Che, J Cho, X Chen - Journal of Lightwave Technology, 2021 - opg.optica.org
… PPC, the PSNR sensitivity represents a performance metric to evaluate different modulation
… Sun et al., “Dyadic probabilistic shaping of PAM-4 and PAM-8 for cost-effective VCSEL-MMF …

Blind carrier frequency offset estimation in coherent optical communication systems with probabilistically shaped M-QAM

Q Yan, L Liu, X Hong - Journal of Lightwave Technology, 2019 - ieeexplore.ieee.org
sensitive to the shaping strength of PS-MQAM signal [28]. Therefore, for systems with different
shaping … ., “Experimental comparison of probabilistic shaping methods for unrepeated fiber

Introducing enumerative sphere shaping for optical communication systems with short blocklengths

A Amari, S Goossens, YC Gültekin… - Journal of Lightwave …, 2019 - opg.optica.org
… points with different probabilities, geometric shaping uses … Probabilistic shaping has been
shown to give larger gains in … all optical process, based on phase sensitive amplifier, for …

Probabilistically shaped coded modulation for IM/DD system

Z He, T Bo, H Kim - Optics express, 2019 - opg.optica.org
fiber-optic communication system and the Shannon limit. The … , we can write the achievable
rate for probabilistic shaping as … The results show that the receiver sensitivity gain of the …

[HTML][HTML] 26.8-m THz wireless transmission of probabilistic shaping 16-QAM-OFDM signals

S Wang, Z Lu, W Li, S Jia, L Zhang, M Qiao, X Pang… - APL photonics, 2020 - pubs.aip.org
… RoF communication system. To achieve high-speed THz … a larger variance of the probabilities
at different symbols, which is … antennas with a gain of 50 dBi for the wireless transmission. …

Probabilistic shaping based constellation encryption for physical layer security in OFDM RoF system

Z Wang, Y Xiao, S Wang, Y Yan, B Wang, Y Chen… - Optics express, 2021 - opg.optica.org
Different from the uniform distribution of traditional … gain is applied to amplify the optical signal
and a variable … scheme, the sensitivity of hyperchaotic system responding to initial value is …

[HTML][HTML] Probabilistic shaping for finite blocklengths: Distribution matching and sphere shaping

YC Gültekin, T Fehenberger, A Alvarado, FMJ Willems - Entropy, 2020 - mdpi.com
Communication systems with limitations on peak power or peak-to-average … different
shaping architectures by studying the blocklength that is required to obtain a certain shaping gain. …

Constellation shaping chaotic encryption scheme with controllable statistical distribution for OFDM-PON

Z Zhang, Y Luo, C Zhang, X Liang, M Cui… - Journal of lightwave …, 2022 - opg.optica.org
… 1) Our scheme can achieve probabilistic shaping in a particularly simple … -sensitive optical
access networks and applicable to high-order QAM modulation. 2) By testing different system