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Photonics
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Advances in Radio over Fiber Techniques for 5G and Beyond
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Advances in Radio over Fiber Techniques for 5G and Beyond

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optical Communication and Network".

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 3877

Special Issue Editors

Dr. Usman Hadi

E-Mail Website
Guest Editor
School of Engineering, Ulster University, Shore Rd, Newtownabbey, Belfast BT37 0QB, UK
Interests: optical communications; wireless communication; digital signal processing; machine learning; optical fiber-based sensing; fiber wireless integration
Special Issues, Collections and Topics in MDPI journals
Dr. Sunish Kumar

E-Mail Website
Guest Editor
School of Engineering, Ulster University, Shore Rd, Newtownabbey, Belfast BT37 0QB, UK
Interests: optical communications; digital signal processing; machine learning; perturbation theory; nonlinear systems modelling; passive optical networks; optical-wireless communications; optical fiber-based sensing
Dr. Jian Song

E-Mail Website
Guest Editor
Nokia Paris-Saclay, 7 Rte de Villejust, 91620 Nozay, France
Interests: wireless communications; optimization; stochastic geometry; RIS, machine learning; reinforcement learning

Special Issue Information

Dear Colleagues,

The need for wireless communication capacity is continually increasing. In the 5G era, a peak capacity of 10 Gb/s is defined for improved Mobile Broadband (eMBB) applications, while >100 Gb/s peak capacity is being mentioned for beyond 5G (B5G) systems in certain preliminary proposals. Apart from increasing capacity, ultra-reliable low-latency communication (URLLC) and massive machine-type communications (mMTC) applications are also important components of the 5G system's big plans, as they are the key elements for flexibly and reliably achieving smart applications based on machine-type communications or Internet of Things (IoT) technologies. Optical technology has emerged as a viable solution to these problems. Building on backhaul, fronthaul, mid-haul, or x-haul links, sigma-delta/digital/analog radio over fiber (SD/D/A-RoF) technologies have been actively investigated to more effectively carry data in radio access networks (RANs). The performance has been improved using linearization methods, such as digital predistortion (DPD) and perturbation theory. This advancement has led to fiber and wireless integration for improved wireless coverage. The creation, synthesis, and detection of radio waves have all benefited from advanced photonics technology. Meanwhile, optical wireless communication (OWC), which uses infrared or visible light as the wireless transmission carriers (also known as visible light communication (VLC)) and wireless power transfer (WPT), is being intensively explored as a complement to or offloading alternative for radio-based systems.

The goal of this Special Issue is to address the difficulties and prospects of optical and wireless communication networks with regards to RAN, as well as their potential optical solutions, by examining possible development paths, obstacles, and frontier technologies. The following are some of the topics that may be of interest to you:

Topics of interest include but are not limited to:

  • Radio over fiber;
  • Advancements in analog/digital/sigma delta radio over fiber
  • Radio access network (RAN);
  • Open radio access network (O-RAN);
  • Fiber Wireless Integration based Optical-Wireless Interconnects;
  • 5G/B5G optical wireless convergent networks;
  • Microwave/millimeter-wave photonics;
  • Optical wireless communication (OWC);
  • Visible light communication (VLC);
  • Advanced signal processing.

Dr. Usman Hadi
Dr. Sunish Kumar
Dr. Jian Song
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Photonics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • radio over fiber
  • radio access network
  • fiber wireless Integration based optical-wireless interconnects
  • optical wireless communication

Published Papers (2 papers)

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Research

12 pages, 4651 KiB  
Article
Enriching Capacity and Transmission of Hybrid WDM-FSO Link for 5G Mobility
by Yutao Shi, Ammar Armghan, Farman Ali, Khaled Aliqab and Meshari Alsharari
Photonics 2023, 10(2), 121; https://doi.org/10.3390/photonics10020121 - 24 Jan 2023
Cited by 9 | Viewed by 1599
Abstract
A dramatic increase in user and capacity demands has been noted after the COVID-19 pandemic. These challenges have damaged the 5G communication system mobility. Therefore, developing mobility and enhancing capacity transmission of 5G advanced services are the focused research gaps in the current [...] Read more.
A dramatic increase in user and capacity demands has been noted after the COVID-19 pandemic. These challenges have damaged the 5G communication system mobility. Therefore, developing mobility and enhancing capacity transmission of 5G advanced services are the focused research gaps in the current era. In this paper, the free space optics (FSO) link is modeled with wavelength division multiplexing (WDM) technology based optical fiber system, purposing to enhance the 5G capabilities in multi-channel, high distance, and bidirectional transmissions. In addition, the presented hybrid FSO-WDM supported optical fiber network is analyzed for 4, 8, and 16 × 10 Gbps downlink and uplink transmission. The paper also includes the mathematical discussion of merged fiber length (SMF = 30 km) and FSO (600 m) with improved mobility management. In another contribution, the tolerance against Rayleigh backscattering (RB) noises is developed through various wavelengths of downlink and uplink channels. Finally, we perform the simulation analysis and reliability of the proposed structure for the 5G advanced communication system. Full article
(This article belongs to the Special Issue Advances in Radio over Fiber Techniques for 5G and Beyond)
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9 pages, 3096 KiB  
Article
A Continuously Tunable and Filter-Less QPSK Modulated Millimeter-Wave Signal Generation with Frequency Quadrupling Just Based on an MZM
by Haifeng Hu, Baoju Liu and Dongfei Wang
Photonics 2022, 9(7), 474; https://doi.org/10.3390/photonics9070474 - 7 Jul 2022
Viewed by 1351
Abstract
In this paper, we propose a new frequency quadrupling scheme to generate a quadrature phase shift keying (QPSK) modulated vector millimeter-wave signal, in which an optical filter is not necessary. To eliminate constellation overlapping of the generated vector millimeter-wave signal caused by phase [...] Read more.
In this paper, we propose a new frequency quadrupling scheme to generate a quadrature phase shift keying (QPSK) modulated vector millimeter-wave signal, in which an optical filter is not necessary. To eliminate constellation overlapping of the generated vector millimeter-wave signal caused by phase multiplication in the process of frequency multiplication, a precoding assisted technique is adopted. The principle and feasibility of the proposed scheme is deduced by a detailed mathematical formula. Simulations are carried out to generate 40 GHz QPSK modulated vector millimeter-wave signals using a 10 GHz radio frequency source and the BER performance is analyzed in detail. The results show that BER of the generated 5/10-Gbaud vector millimeter-wave signal is below 3.8×10-3, when the input optical power for into photo-detector is higher than −20.67 dBm. Full article
(This article belongs to the Special Issue Advances in Radio over Fiber Techniques for 5G and Beyond)
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