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Electronics
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Advanced Optical Wireless Communication Systems
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Advanced Optical Wireless Communication Systems

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microwave and Wireless Communications".

Deadline for manuscript submissions: closed (15 February 2025) | Viewed by 1809

Special Issue Editors

Dr. Qinghua Tian

E-Mail Website
Guest Editor
1. State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
2. Beijing Key Laboratory of Space-ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
Interests: high-speed optical communication systems; optical access networks and space–ground convergence networks; AI-enabled optical communications and networks; intelligent information processing
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yejun Liu

E-Mail Website
Guest Editor
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
Interests: wireless optical communications; converged fiber–wireless networks

Special Issue Information

Dear Colleagues,

Optical wireless communication (OWC) is an emerging and dynamic research and development area that has generated a vast number of interesting solutions to very complicated communication challenges. OWC systems are a kind of data transmission technology using light waves to carry out high-speed and high-security communications free of electromagnetic interference featuring high bandwidth, low cost, and environmental protection advantages compared with traditional radio communication, and which shows great potential. In recent years, with the rapid development of information and communication technology, OWC systems, with their advantages of high speed, high bandwidth, and low cost, have been gradually applied to indoor wireless network, vehicle networks, and submarine and satellite communications. However, with the continuous development of technology and the continuous expansion of application scenarios, OWC systems still faces many challenges and problems in practical applications, such as stability and transmission distance. In addition, OWC systems need to be further explored and improved in terms of safety, energy efficiency, and cost effectiveness. Overall, OWC systems have great potential, but in order to achieve widespread application, they needs to be further researched and improved in terms of technological maturity and application adaptability. The goal of this Special Issue is to explore the advanced technologies of OWC systems and the associated novel system models and to provide a platform for presenting the latest achievements in this field of research. In this Special Issue, original research articles and reviews are welcome.

Research areas may include, but are not limited to:

  • Signal processing techniques in optical wireless communication;
  • Security and privacy protection in OWC systems;
  • Performance optimization for indoor and outdoor OWC applications;
  • High-speed data transmission technologies based on OWC;
  • Energy efficiency management in OWC systems;
  • Impact of environmental factors on OWC performance and related mitigation strategies;
  • Applications of OWC in vehicular networks;
  • Underwater optical wireless communication technologies;
  • Applications of OWC in satellite communication;
  • Integration and collaboration of OWC with traditional wireless communication;
  • Standardization and regulation of OWC technologies;
  • Applications of artificial intelligence in OWC systems.

We look forward to receiving your contributions.

Dr. Qinghua Tian
Prof. Dr. Yejun Liu
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. Electronics 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

  • optical wireless communication
  • signal processing
  • security and privacy protection
  • performance optimization
  • artificial intelligence
  • networks
  • transmission technology

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Published Papers (1 paper)

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Research

22 pages, 11909 KiB  
Article
Performance Analysis of UAV-IRS Relay Multi-Hop FSO/THz Link
by Yawei Wang, Rongpeng Liu, Jia Yuan, Jingwei Lu, Ziyang Wang, Ruihuan Wu, Zhongchao Wei and Hongzhan Liu
Electronics 2024, 13(16), 3247; https://doi.org/10.3390/electronics13163247 - 15 Aug 2024
Viewed by 1423
Abstract
As the era of sixth-generation (6G) communications approaches, there will be an unprecedented increase in the number of wireless internet-connected devices and a sharp rise in mobile data traffic. Faced with the scarcity of spectrum resources in traditional communication networks and challenges such [...] Read more.
As the era of sixth-generation (6G) communications approaches, there will be an unprecedented increase in the number of wireless internet-connected devices and a sharp rise in mobile data traffic. Faced with the scarcity of spectrum resources in traditional communication networks and challenges such as rapidly establishing communications after disasters, this study leverages unmanned aerial vehicles (UAVs) to promote an integrated multi-hop communication system combining free-space optical (FSO) communication, terahertz (THz) technology, and intelligent reflecting surface (IRS). This innovative amalgamation capitalizes on the flexibility of UAVs, the deployability of IRS, and the complementary strengths of FSO and THz communications. We have developed a comprehensive channel model that includes the effects of atmospheric turbulence, attenuation, pointing errors, and angle-of-arrival (AOA) fluctuations. Furthermore, we have derived probability density functions (PDFs) and cumulative distribution functions (CDFs) for various switching techniques. Employing advanced methods such as Gaussian–Laguerre quadrature and the central limit theorem (CLT), we have calculated key performance indicators including the average outage probability, bit error rate (BER), and channel capacity. The numerical results demonstrate that IRS significantly enhances the performance of the UAV-based hybrid FSO/THz system. The research indicates that optimizing the number of IRS elements can substantially increase throughput and reliability while minimizing switching costs. Additionally, the multi-hop approach specifically addresses the line-of-sight (LoS) dependency limitations inherent in FSO and THz systems by utilizing UAVs as dynamic relay points. This strategy effectively bridges longer distances, overcoming physical and atmospheric obstacles, and ensures stable communication links even under adverse conditions. This study underscores that the enhanced multi-hop FSO/THz link is highly effective for emergency communications after disasters, addressing the challenge of scarce spectrum resources. By strategically deploying UAVs as relay points in a multi-hop configuration, the system achieves greater flexibility and resilience, making it highly suitable for critical communication scenarios where traditional networks might fail. Full article
(This article belongs to the Special Issue Advanced Optical Wireless Communication Systems)
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