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5G/6G Wireless Communication and Network Architecture

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 (10 October 2023) | Viewed by 3794

Special Issue Editor


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Guest Editor
Incelligent PC, 17121 Athens, Greece
Interests: design and management of wireless reconfigurable and cognitive networks; optimization algorithms; learning techniques; software engineering

Special Issue Information

Dear Colleagues,

5G is just around the corner, and the general consensus is that it is set to change the world as we know it! It promises a wireless future that will offer unprecedented connectivity for people, places, and entities everywhere. Compared with former generations, 5G is highly advanced; hence, it will need to address relatively stringent requirements in order to live up to its potential and hyped expectations. 

New frequency bands; spectrums and their dynamic disposition to public and private organizations; radio technologies in advanced massive MIMO that move from sector-level wide beams to user-centric, narrow, and dynamic beams; and network architecture offering exceptional new levels of reliability, performance, flexibility, and cost-effectiveness are some of the major features that support the myriad of future 5G application scenarios.

Most importantly, 5G networks are primarily oriented to users and verticals. Capitalizing on software and virtualized infrastructure, they will be flexible enough to accommodate various heterogeneous and diverse applications and vertical requirements, in terms of speed, latency, dependability, etc. Innovations such as 5G network slicing will let operators set up segments of their network capacity to deliver specific quality of service (QoS) levels to specific customers, whether that be a smart home, an Internet of Things (IoT)-based industry, or a connected car.

On the other hand, new use cases are set to appear that consider the need to incorporate various technological innovations (5G-enabled localization accuracy, advances in UAV technology, big data and AI/machine/deep learning technology, etc.), the need for planning for critical situations (e.g., the COVID-19 pandemic), and the opportunity to realize older objectives, such as the replacement of traditional, costly fiber-based rollouts by fixed wireless access based on 5G, etc.

In this Special Issue, we are aiming to collate studies on all of the aspects surrounding “5G/6G Wireless Communication and Network Architecture”. If you are interested in this topic, you are welcome to contribute to this Special Issue, and I am looking forward to receiving your submissions.

Dr. Kostas Tsagkaris
Guest Editor

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. Applied Sciences 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 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

  • 5G
  • wireless communication

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Published Papers (2 papers)

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Research

19 pages, 9924 KiB  
Article
A Local Pre-Rerouting Algorithm to Combat Sun Outage for Inter-Satellite Links in Low Earth Orbit Satellite Networks
by Jifeng Jin, Lin Shang, Zijian Yang, Haiwang Wang and Guotong Li
Appl. Sci. 2024, 14(4), 1625; https://doi.org/10.3390/app14041625 - 17 Feb 2024
Cited by 1 | Viewed by 1692
Abstract
Satellite networks show the development trend in global coverage, flexible access, and reliable transmission. They are the key to building a wide coverage, massive connection, three-dimensional, all-round, all-weather, space-, air- and ground-integrated information network. Due to its high frequency and large bandwidth, the [...] Read more.
Satellite networks show the development trend in global coverage, flexible access, and reliable transmission. They are the key to building a wide coverage, massive connection, three-dimensional, all-round, all-weather, space-, air- and ground-integrated information network. Due to its high frequency and large bandwidth, the laser inter-satellite link (ISL) is easily interfered with by sunlight. When sun outage occurs, the laser inter-satellite link will be interrupted for a long time. Most of the existing satellite link failure-routing algorithms are distributed and have poor load balancing capabilities. The centralized algorithm calculates paths independently for different services, and the effect is not ideal. In this paper, a local pre-rerouting algorithm (LPRA) is proposed. The center node collects the link information from the limited area before sun outage and the service information in the link that is about to be interrupted, and reroutes these services before sun outage occurs. After the occurrence of sun outage, services that originally needed to go through the failed link are forwarded according to the path calculated in advance, thereby avoiding link congestion and reducing the packet loss rate. Simulation results show that the proposed algorithm performs better than existing algorithms in terms of packet loss ratio, total delay and load balancing capabilities. Full article
(This article belongs to the Special Issue 5G/6G Wireless Communication and Network Architecture)
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19 pages, 569 KiB  
Article
An Optimal Resource Allocation Scheme with Carrier Aggregation in 5G Network under Unlicensed Band
by Jin Li, Tong Zheng, Wenyang Guan and Xiaoqin Lian
Appl. Sci. 2023, 13(19), 10638; https://doi.org/10.3390/app131910638 - 24 Sep 2023
Cited by 3 | Viewed by 1616
Abstract
Carrier aggregation (CA) technology in the Fifth-Generation (5G) network can be considered as a major feature for high-rate data services, which can be combined with the concept of 5G in unlicensed band (5G-U) for data offloading to further enhance the efficiency of the [...] Read more.
Carrier aggregation (CA) technology in the Fifth-Generation (5G) network can be considered as a major feature for high-rate data services, which can be combined with the concept of 5G in unlicensed band (5G-U) for data offloading to further enhance the efficiency of the scarce licensed spectral resource. However, the introduction of cellular services in an unlicensed spectrum can force unlicensed band users to silent mode. Meanwhile, the coexistence among different radio access technologies operating on the same frequency band is a complex issue, especially considering the requirement diversity of quality of service (QoS) in networking. In this paper, we propose an optimal resource allocation mechanism to maximize system performance satisfaction for multiple types of services with different QoS requirements in the 5G-U network with a CA feature to address the challenge. Additionally, the performance of services in Wi-Fi system is protected by reserving the minimum spectrum resource when offloading for the 5G-U network. Analytical results on the mean ergodic achievable rate of Wi-Fi services and the mean packet delay of 5G services are provided to maximize the system performance satisfaction. Numerical results demonstrate the effectiveness of the proposed algorithm, wherein optimal spectrum and power allocation can contribute to the maximum system satisfaction in a 5G-U network with a CA feature. Full article
(This article belongs to the Special Issue 5G/6G Wireless Communication and Network Architecture)
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