energies-logo

Journal Browser

Journal Browser

Special Issue "Wireless Communication Technologies in 5G and 6G"

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A: Electrical Engineering".

Deadline for manuscript submissions: 31 May 2022 | Viewed by 3918

Special Issue Editors

Dr. Abdellah Chehri
E-Mail Website
Guest Editor
1. Department of Applied Sciences, University of Quebec in Chicoutimi, 555, boul. de l’Université, Chicoutimi, QC G7H 2B1, Canada
2. School of Information Technology and Engineering, University of Ottawa, 800 King Edward Avenue Ottawa, Ottawa, ON K1N 6N5, Canada
Interests: wireless communication; IoT; 5G; 6G; ultra-reliable and low latency (URLLC) networks; next generation of backhaul networks
Special Issues, Collections and Topics in MDPI journals
Dr. Gwanggil Jeon
E-Mail Website
Guest Editor
Department of Embedded Systems Engineering, Incheon National University, Incheon 22012, Korea
Interests: image processing; particularly image compression, motion estimation, demosaicking and image enhancement, and computational intelligence, such as fuzzy and rough sets theories
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Fifth-generation (5G) mobile technology is expected to be operational by 2020 and is currently attracting extensive research interest from both industry and academia, with a specific focus on its opportunities and challenges, as well as the research developments which are enabling 5G technology. This is particularly important as, with 5G technology only just now being rolled out, work has already begun on the sixth-generation (6G) standard. In March 2019, a global 6G Summit event was held in Finland, and 6G is expected to bring forth a great revolution in communication technologies as it will enable the Internet of Everything. Compared with 5G technology, the future 6G technology is expected to allow even higher throughputs, even shorter latency times, greater component density, and the mass integration of artificial intelligence in all segments constituting the network.

As we move toward next-generation 6G mobile radio, many challenges will need to be fully mastered concerning individual components and their interactions. There are four research areas in 6G: wireless connectivity, devices and circuit technology, distributed computing, and services and applications.

This Special Issue encourages high-quality papers that advance the state of the art and practical applications of future 6G technologies. This feature topic will bring together academic and industrial researchers to identify and discuss the significant opportunities and challenges in applying 6G technologies to the understanding and design of modern network systems.

Dr. Abdellah Chehri
Dr. Gwanggil Jeon
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. Energies is an international peer-reviewed open access semimonthly 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 2200 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

  • Terahertz communications and sensing
  • Mobile edge networking and computing
  • Massive millimeter wave (mmWave) technologies
  • Terahertz (THz) and quantum nanodevices and circuits
  • 6G applications such as robotics, UAVs, autonomous vehicles
  • Machine learning for 5G and 6G
  • 5G testbeds
  • New security concepts/new network architectures

Published Papers (4 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Jump to: Review

Article
Performance of Reconfigurable Antenna Fabricated on Flexible and Nonflexible Materials for Band Switching Applications
Energies 2021, 14(9), 2553; https://doi.org/10.3390/en14092553 - 29 Apr 2021
Cited by 2 | Viewed by 641
Abstract
In this article, a novel frequency slot-based switchable antenna fabricated on flexible and nonflexible materials is presented for suitable reconfigurable radiations of Bluetooth, WiMAX, and upper WLAN applications. Initially, the performance of this structure was simulated using a CSTTM simulator and evaluated [...] Read more.
In this article, a novel frequency slot-based switchable antenna fabricated on flexible and nonflexible materials is presented for suitable reconfigurable radiations of Bluetooth, WiMAX, and upper WLAN applications. Initially, the performance of this structure was simulated using a CSTTM simulator and evaluated experimentally using a nonflexible FR4 structure. The same antenna was implemented on a flexible (jean) substrate with a relative permittivity of 1.7. The proposed textile antenna prototypes were fabricated by optimal dimensions of an E-shaped slot with a variation on the shape of the ground layer, integrated using a crossed T-shaped strip with ON/OFF switchable state operations. The proposed antenna prototype is compact (20 × 20 mm2), providing switchable radiations with tri bands, has frequencies ranged at 2.36–2.5 GHz for Bluetooth, 3.51–3.79 GHz and 5.47–5.98 GHz for the distinct bands of WiMAX and WLAN, respectively, as well as part of UWB operations. Full article
(This article belongs to the Special Issue Wireless Communication Technologies in 5G and 6G)
Show Figures

Figure 1

Article
Researching on the Deterministic Channel Models for Urban Microcells Considering Diffraction Effects
Energies 2021, 14(8), 2143; https://doi.org/10.3390/en14082143 - 12 Apr 2021
Viewed by 596
Abstract
Deterministic channel models, such as the three-dimensional (3D) ray launching method, can yield wireless channel parameters. In the non-line-of-sight (NLOS) propagation, the outdoor 3D ray launching method that considers diffraction effects is more accurate than the one that does not. While considering the [...] Read more.
Deterministic channel models, such as the three-dimensional (3D) ray launching method, can yield wireless channel parameters. In the non-line-of-sight (NLOS) propagation, the outdoor 3D ray launching method that considers diffraction effects is more accurate than the one that does not. While considering the diffraction effect, obtaining the diffraction point is challenging. This paper proposed a method for determining diffracted rays using the receiving sphere method in 3D ray launching. The diffraction point is determined using the shortest distance method between two straight lines, and the signal loss from the transmitting to receiving antennas is obtained. Furthermore, experiments on a millimeter wave in a microcell scenario were performed. The test results of the wireless channel parameters were compared with theoretical calculations. The results obtained via the 3D ray launching method that only considers the specular reflection and direct rays agree with the experimental results in the line-of-sight (LOS); furthermore, they generate larger errors compared with the experimental results in the NLOS. The results obtained via the 3D ray launching method that considers the direct ray, reflected rays, and diffracted rays agree with the experimental results both in the LOS and NLOS. Therefore, the 3D ray launching method that considers the diffraction effect can improve the prediction accuracy of the millimeter wave channel parameters in a microcell. Full article
(This article belongs to the Special Issue Wireless Communication Technologies in 5G and 6G)
Show Figures

Figure 1

Review

Jump to: Research

Review
Reconfigurable Intelligent Surfaces for 5G and beyond Wireless Communications: A Comprehensive Survey
Energies 2021, 14(24), 8219; https://doi.org/10.3390/en14248219 - 07 Dec 2021
Cited by 1 | Viewed by 925
Abstract
With possible new use cases and demanding requirements of future 5th generation (5G) and beyond cellular networks, the future of mobile communications sounds promising. However, the propagation medium has been considered a randomly acting agent between the transmitter and the receiver. With the [...] Read more.
With possible new use cases and demanding requirements of future 5th generation (5G) and beyond cellular networks, the future of mobile communications sounds promising. However, the propagation medium has been considered a randomly acting agent between the transmitter and the receiver. With the advent of the digital age of wireless communications, the received signal quality is degrading due to the uncontrollable interactions of the transmitted radio waves with the surrounding artifacts. This paper presents a comprehensive literature review on reconfigurable intelligent surfaces (RISs) and assisted application areas. With the RIS, the network operators can control radio waves’ scattering, reflection, and refraction characteristics by resolving the harmful properties of environmental wireless propagation. Further, the RIS can effectively control the wavefront, such as amplitude, phase, frequency, and even polarization, without requiring complex encoding, decoding, or radio wave processing techniques. Motivated by technological advances, the metasurfaces, reflectarrays, phase shift, and liquid crystals are potential candidates for implementing RIS. Thus, they can be considered the front runner for realizing the 5G and beyond network. Furthermore, the current research activities in the evolving field of wireless networks operated by RIS are reviewed and discussed thoroughly. Finally, to fully explore the potential of RISs in wireless networks, the fundamental research issues to be addressed have been discussed. Full article
(This article belongs to the Special Issue Wireless Communication Technologies in 5G and 6G)
Show Figures

Figure 1

Review
A Survey on Over-The-Air Linearization Methods for MIMO Systems
Energies 2021, 14(8), 2225; https://doi.org/10.3390/en14082225 - 16 Apr 2021
Cited by 1 | Viewed by 732
Abstract
Transmitter antenna arrays are typically coupled to several RF chains, which imposes stringent requirements on the linearization of each power amplifier (PA) present in the system. For this and other reasons discussed in this work, Over-the-air (OTA) linearization methods are considered to linearize [...] Read more.
Transmitter antenna arrays are typically coupled to several RF chains, which imposes stringent requirements on the linearization of each power amplifier (PA) present in the system. For this and other reasons discussed in this work, Over-the-air (OTA) linearization methods are considered to linearize transmitter antenna arrays in 5G scenarios. However, several factors need to be considered when applying OTA linearization methods. In this paper, an extended critical review of validated OTA linearization methods is presented. The main goal is to point out and discuss the most prominent methods, in order to determine which one is the most suitable for a specific application. In particular, analysis for each method is performed and, subsequently, their benefits and the disadvantages are systematically discussed. This is sought to fill-in a gap in the scientific literarure and, thus, to help radio-frequency engineers in the implementation of OTA digital pre-distortion (DPD) techniques for multiple input multiple output (MIMO) systems. Full article
(This article belongs to the Special Issue Wireless Communication Technologies in 5G and 6G)
Show Figures

Graphical abstract

Back to TopTop