A Multi-Layer Erbium-Doped Air-Hole-Assisted Few-Mode Fiber with Ultra-Low Differential Modal Gain
Photonics, 2022 The air-hole assisted few-mode fiber (AH-FMF) enables modal intensity balance and offers a profound prospect in gain equalization with the combination of adaptive ion doping.
Zhiqi Li +6 more
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Multicarrier Faster-Than-Nyquist Based on Efficient Implementation and Probabilistic Shaping
IEEE Access, 2021 The conventional multicarrier faster-than-Nyquist (MFTN) achieves the spectral efficiency (SE) gain by deep compression. However, deep compression leads to severe intersymbol interference (ISI) or intercarrier interference (ICI).
Hui Che, Kun Zhu, Yong Bai
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Gain Equalization for Few-Mode Erbium-Doped Fiber Amplifiers via Strong Mode Coupling
Applied Sciences, 2022 Few-mode erbium-doped fiber amplifiers (FM-EDFAs) are one of the most important optical subsystems for successful space division multiplexed transmission systems.
Yaping Liu +4 more
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Sensors, 2020 Underwater acoustic (UWA) sensor networks demand high-rate communications with high reliability between sensor nodes for massive data transmission. Filtered multitone (FMT) is an attractive multicarrier technique used in high-rate UWA communications, and
Lin Sun, Ming Yan, Haisen Li, Yanjie Xu
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On the Performance of LDPC-Coded MIMO Schemes for Underwater Communications Using 5G-like Processing
Applied Sciences, 2022 This article studies the underwater acoustic (UWA) communications associated with multiple input–multiple output (MIMO), single carrier with frequency-domain equalization (SC-FDE), and with low-density parity-check (LDPC) codes.
Mário Marques da Silva +3 more
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Research on Dynamic Equalization of Optical Power for Satellite-Ground Laser Communication
天地一体化信息网络, 2021 Aiming at the problem of light intensity scintillation caused by atmospheric turbulence at the receiver of satellite-ground laser communication will aff ect the communication quality, an optical power balance system based on gain competition was studied ...
Yuefeng CAI +3 more
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Far-field multi-beam pattern synthesis for phased array antennas using Lorentz reciprocity theorem. [PDF]
PLoS OneIn this paper, by combining the Lorentz reciprocity theorem with the particle swarm algorithm, the array beam synthesis method based on wireless power transmission efficiency is successfully applied to the automated beam synthesis process.
Fan Y, Li L, Arya RK, Dong J, Kong S.
europepmc +2 more sources
Photonics, 2023 In optical fiber communication, recent advances in multiple-input and multiple-output (MIMO) systems using space-division multiplexing have helped achieve higher spectral efficiency and data rates.
Jasmeet Singh, Andreas Ahrens
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Broadband Photonic Down-Conversion Preprocessor for ADC With Arcsine Equalization
IEEE Photonics Journal, 2020 It is a challenge to convert broadband millimeter-wave signals directly with electronic analog-to-digital converters (ADCs). The photonic down-conversion preprocessor is a promising solution.
Rui Guo +6 more
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Diversity Techniques for Single-Carrier Packet Retransmissions over Frequency-Selective Channels
EURASIP Journal on Wireless Communications and Networking, 2009 In data packet communication systems over multipath frequency-selective channels, hybrid automatic repeat request (HARQ) protocols are usually used in order to ensure data reliability. For single-carrier packet transmission in slow fading environment, an
Inbar Fijalkow +2 more
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