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5G/6G Mechanisms, Services, and Applications: 2nd Edition

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: 20 June 2026 | Viewed by 499

Special Issue Editor


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Guest Editor
Institute of Telecommunications, AGH University of Krakow, 30-059 Kraków, Poland
Interests: wireless networks; 5G NR-unlicensed; wireless LANs; internet of things; quality of service; threat detection; steganography
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Wireless technology is constantly evolving to satisfy the ever-growing expectations of both end-users and network operators. Furthermore, there is a growing need for ubiquitous connectivity. The observed changes lead to the densification of wireless deployments, increased traffic, new challenges, and applications. Additionally, given that the functionality of future wireless networks will depend primarily on the applications they support, conducting comprehensive research to identify the most appropriate wireless technologies is crucial.

Despite the continued deployment of 5G networks, scientists are already conducting research on next-generation 6G wireless networks. This desired technological advancement will be made possible with the new physical (PHY) and medium access control (MAC) layer enhancements defined across different standardization bodies. However, many of the intended solutions are currently in their initial stages (e.g., supporting cellular and Wi-Fi networks with machine learning), and still need final definition and intensive evaluation.

The main aim of this Special Issue is to showcase high-quality submissions focusing on newly proposed and forthcoming wireless mechanisms, services, and applications. New mathematical models, as well as simulator and experimental works, are required to evaluate the performance of future wireless technologies.

Topics of interest include, but are not limited to, the following:

5G/6G systems and beyond;

Evolution of cellular networks from 5G to 6G;

Next-generation Wi-Fi networks;

Cooperation algorithms for dense networks;

Internet of Things (IoT) and Internet of Everything (IoE);

Coexistence of wireless technologies in unlicensed bands;

Network virtualization and software-defined wireless networks;

Mechanisms and protocols for improvement of Quality of Service;

Artificial intelligence/machine learning algorithms for optimizing wireless networks;

Simulation tools for wireless network performance evaluation;

Wireless testbeds and prototypes;

Wireless network support for emerging applications (metaverse, XR/VR, holographic telepresence, etc.).

Dr. Marek Natkaniec
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 250 words) can be sent to the Editorial Office for assessment.

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 and 6G networks 
  • IEEE 802.11 including standard amendments 
  • network coexistence 
  • dense networks 
  • internet of things 
  • quality of service

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Published Papers (1 paper)

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Research

25 pages, 2772 KB  
Article
An Enhanced Preamble of PRACH Frame for Low-Altitude Long-Distance Integrated Sensing and Communication System
by Xiaoyang Wang, Xiao Yu, Zhengchun Xu, Xiaoyou Yu, Zhaohan Zhang, Qian Ma and Zengjie Shao
Appl. Sci. 2026, 16(10), 4800; https://doi.org/10.3390/app16104800 - 12 May 2026
Viewed by 164
Abstract
In this paper, we propose an enhanced preamble scheme for the Physical Random Access Channel (PRACH) applied to low-altitude integrated sensing and communication (ISAC) systems, aiming to expand the sensing capability of traditional mobile networks with PRACH frames based on ZC sequences. To [...] Read more.
In this paper, we propose an enhanced preamble scheme for the Physical Random Access Channel (PRACH) applied to low-altitude integrated sensing and communication (ISAC) systems, aiming to expand the sensing capability of traditional mobile networks with PRACH frames based on ZC sequences. To enable the network to possess target-sensing capability before successful terminal access, we transform PRACH from a mere initial access channel into an ISAC system capable of supporting high-speed terminal access and user equipment sensing by introducing a time–frequency orthogonal block structure and Orthogonal Cover Codes (OCCs). Specifically, we first derive the Cramér–Rao lower bound (CRLB) for estimating the distance and velocity of user equipment using OCC-ZC sequences, and we establish the evaluation metric for communications and named detection probabilities. Then, the ISAC problem is formulated as a multi-objective optimization function. Since the multi-objective optimization problem is non-convex, we propose the NSAG-II algorithm to solve it, simultaneously improving the estimation accuracy of distance and velocity in the sensing aspect and the detection probability in the communication aspect. Full article
(This article belongs to the Special Issue 5G/6G Mechanisms, Services, and Applications: 2nd Edition)
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