Latest Advances in Optical Networks for 5G/6G Communications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (18 March 2022) | Viewed by 2161

Special Issue Editors

State Key Laboratory of Information Photonics and Optical Communications, Institute of Science and Technology Development, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China
Interests: 6G; optical network; blockchain; Artificial Intelligence; SDN

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Guest Editor
Smart Internet Lab, University of Bristol, Bristol BS8 1TL, UK
Interests: machine learning; dynamic optical networks; 5G and beyond; multi-dimensional networks; software-defined networks
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Special Issue Information

Dear Colleagues,

As the main network infrastructure, a new generation of optical networks is required to unleash the full potential of 5G and even 6G communications. To meet this need, various new services are springing up with the requirements of high-capacity, ultra-reliable, low latency, etc., spanning from access to core optical networks. This Special Issue will present a collection of papers with advanced solutions both at data and control plane in optical networks for new service supports in 5G or 6G with the performance improvements in terms of capacity, latency, reconfigurability, survivability, reliability, or simply scaling up the present mode of operation. In addition, we also encourage the submission of papers providing redesigns that feature in-built physical security, sub-linear bandwidth scaling costs, extremely low latency, and reconfigurability.

Dr. Hui Yang
Dr. Shuangyi Yan
Guest Editors

Manuscript Submission Information

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Published Papers (1 paper)

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Research

15 pages, 1950 KiB  
Article
Hybrid Dual-Hop RF/FSO Terrestrial-Deep Space Communication System under Solar Scintillation during Superior Solar Conjunction
by Meng Jin, Wenyi Liu, Yuan Hao, Ruihuan Wu, Zhongchao Wei, Dongmei Deng and Hongzhan Liu
Appl. Sci. 2022, 12(2), 619; https://doi.org/10.3390/app12020619 - 10 Jan 2022
Cited by 5 | Viewed by 1600
Abstract
Free-space optical communication (FSO) technology has wide prospects in deep space exploration, but it will encounter coronal turbulence during superior solar conjunction, and solar scintillation will seriously affect the communication quality. In this paper, we propose a terrestrial–deep space hybrid radio frequency (RF)/FSO [...] Read more.
Free-space optical communication (FSO) technology has wide prospects in deep space exploration, but it will encounter coronal turbulence during superior solar conjunction, and solar scintillation will seriously affect the communication quality. In this paper, we propose a terrestrial–deep space hybrid radio frequency (RF)/FSO system with the hybrid L-pulse position modulation-binary phase shift keying-subcarrier intensity modulation (L-PPM–BPSK–SIM) scheme, where the RF channel of the satellite-terrestrial relay follows the Rayleigh distribution, and the FSO channel of the relay satellite to the deep space probe adopts Gamma–Gamma distribution. Considering the pointing error, the expression of the bit error rate (BER), the outage probability, and the average channel capacity of the hybrid system are derived. In addition, we evaluated the influence of coronal turbulence parameters on the system through amplitude fluctuations. The simulation results demonstrate that the hybrid RF/FSO system improves the BER performance by 10 to 30 times in a deep space environment, and the use of a hybrid modulation can further reduce the BER. The non-Kolmogorov spectral index, outer scale, solar wind density fluctuation factor, and optical wavelength comprehensively affect the BER through amplitude fluctuations. Our research results have potential application value for evaluating the link performance of future deep space communications. Full article
(This article belongs to the Special Issue Latest Advances in Optical Networks for 5G/6G Communications)
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