Coherent free-space optical communications: Opportunities and challenges

FP Guiomar, MA Fernandes, JL Nascimento… - Journal of Lightwave …, 2022 - opg.optica.org
The ever-increasing data rate demand for wireless systems is pushing the physical limits of
standalone radio-frequency communications, thus fostering the blooming of novel high …

Probabilistic constellation sha** for optical fiber communications

J Cho, PJ Winzer - Journal of Lightwave Technology, 2019 - opg.optica.org
We review probabilistic constellation sha** (PCS), which has been a key enabler for
several recent record-setting optical fiber communications experiments. PCS provides both …

Introducing enumerative sphere sha** for optical communication systems with short blocklengths

A Amari, S Goossens, YC Gültekin… - Journal of Lightwave …, 2019 - opg.optica.org
Probabilistic sha** based on constant composition distribution matching (CCDM) has
received considerable attention as a way to increase the capacity of fiber optical …

800-Gb/s/carrier WDM coherent transmission over 2000 km based on truncated PS-64QAM utilizing MIMO Volterra equalizer

M Kong, J Shi, B Sang, J Ding, K Wang… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
We provided a feasible solution for 800-Gb/s per carrier long-distance wavelength division
multiplexing (WDM) coherent optical fibre transmission based on offline DSP. We …

Trends in channel coding for 6G

S Miao, C Kestel, L Johannsen… - Proceedings of the …, 2024 - ieeexplore.ieee.org
Error correction coding (ie, channel coding) is a key ingredient of any digital
communications system. In mobile wireless communications, channel codes have evolved …

23.1-Gb/s 135-GHz wireless transmission over 4.6-Km and effect of rain attenuation

W Li, J Yu, J Ding, X Ji, Y Wang, K Wang… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
In this article, we have experimentally demonstrated a fiber-wireless-integration-band (110–
170 GHz) transmission system. To extend the wireless transmission distance while …

End-to-end optimization of constellation sha** for Wiener phase noise channels with a differentiable blind phase search

A Rode, B Geiger, S Chimmalgi… - Journal of Lightwave …, 2023 - opg.optica.org
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 …

Free-space terabit optical interconnects

MA Fernandes, PP Monteiro… - Journal of Lightwave …, 2022 - opg.optica.org
The continuous growth of Internet data traffic is progressively increasing the pressure over
wireless access technologies. To overcome the imminent bandwidth bottleneck, free-space …

Soft-demap** for short reach optical communication: A comparison of deep neural networks and volterra series

M Schädler, G Böcherer… - Journal of Lightwave …, 2021 - ieeexplore.ieee.org
In optical fiber communication, optical and electrical components introduce nonlinearities,
which require effective compensation to attain highest data rates. In particular, in short reach …