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Electronics
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Advances in Wireless and Optical Communication Systems
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Advances in Wireless and Optical 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: 30 April 2024 | Viewed by 2176

Special Issue Editors

Dr. Mohammad Rakib Uddin

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Guest Editor
College of Nano Scale Science and Engineering, State University of New York Polytechnic Institute, Albany, NY 12203, USA
Interests: integrated photonics/optoelectronics; fiber optics; optical communications
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Md. Shamim Ahsan

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Guest Editor
Electronics and Communication Engineering Discipline, Khulna University, Khulna 9208, Bangladesh
Interests: optical communications; passive optical networks; photonics; photonic sensors
Special Issues, Collections and Topics in MDPI journals
Dr. Mohd Rashidi Che Beson

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Guest Editor
Associate Professor, Advanced Communication Engineering – Centre of Excellence, Faculty of Electronic Engineering & Technology, Universiti Malaysia Perlis, Perlis, Malaysia
Interests: optical communications; visible light communication (VLC); radio over fiber (RoF); fiber-wireless (FiWi); free space optics (FSO) for satellite network; horticulture
Dr. Ahmed Jalal

E-Mail Website
Guest Editor
Electrical Engineering, University of Texas Permian Basin, Odessa, TX 79765, USA
Interests: IoT and communications; optics; bioelectronics and instrumentations; biosensors; IoT and sensor data analytics; fuel cells; thin-film fabrication; nanomaterials; environmental sensors; electrochemistry

Special Issue Information

Dear Colleagues,

We are inviting submissions to this Special Issue on Advances in Wireless and Optical Communication Systems.

This Special Issue is focused on high-quality manuscripts covering advances in the state-of-the-art of wireless and optical communication systems. Understanding various phenomena in wireless and optical communications, as well as the development of various communication devices, systems, and topologies are some of the key interests of the scientific community. The general scope of this Special Issue includes, but is not limited to, the following: sources and detectors, modulation and coding, propagation and channel characterization, DSP applications to communication systems, resource allocation and interference management, broadband wireless and optical communications, wireless and optical networks, MIMO systems, free-space optical communications, microwave photonics, nonlinear optics, optical-wireless convergence networks, antennas, signal amplification, wireless and optical communication devices, security and authentication, and new applications.

The Special Issue confronts the fundamental principles, cutting-edge research investigations, and recent advances of communication technologies. We encourage the submission of theoretical, simulation, and experimental studies, as well as comprehensive review and survey papers.

Dr. Mohammad Rakib Uddin
Prof. Dr. Md. Shamim Ahsan
Dr. Mohd Rashidi Che Beson
Dr. Ahmed Jalal
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

  • antennas and propagation
  • 5G and 6G communication devices and techniques
  • green communications and computations
  • microwave and radio frequency
  • MIMO systems and networks
  • satellite and space communications
  • smart grid communications
  • THz communication systems
  • optical communications
  • optical networks and systems
  • free space optical communication
  • nonlinear optics
  • optical interconnects
  • light sources and photodetectors
  • specialty fibers
  • ad-hoc and sensor networks
  • Internet of Things (IoT)
  • next-generation networks
  • smart grid communications
  • information security and cryptography
  • cognitive radio networks

Published Papers (2 papers)

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Research

15 pages, 3754 KiB  
Article
Noise-Canceling Channel Estimation Schemes Based on the CIR Length Estimation for IEEE 802.11p/OFDM Systems
by Kyunbyoung Ko and Hanho Wang
Electronics 2024, 13(6), 1110; https://doi.org/10.3390/electronics13061110 - 18 Mar 2024
Viewed by 456
Abstract
This paper investigates methods for noise-canceling channel estimation (NC-CE) to track rapid time-varying channels in IEEE 802.11p/orthogonal frequency division multiplexing (OFDM) systems. To this end, we introduce a novel three-step channel estimation technique based on the estimated length of the channel impulse response [...] Read more.
This paper investigates methods for noise-canceling channel estimation (NC-CE) to track rapid time-varying channels in IEEE 802.11p/orthogonal frequency division multiplexing (OFDM) systems. To this end, we introduce a novel three-step channel estimation technique based on the estimated length of the channel impulse response (CIR). This approach aims to surpass the performance of conventional designs that rely on constructed data pilots (CDPs). In the first step, we not only eliminate noise components but also estimate the channel frequency responses (CFRs) of virtual subcarriers for long preamble parts. Moving on to the second step, we incorporate a modified CDP method without a frequency-domain reliability test and interpolation, taking into account the CFRs of virtual subcarriers obtained at the previous OFDM symbol time. The final step can be implemented as the operation of the inverse fast Fourier transform (IFFT)/nulling/FFT to reduce noise components from the CFRs obtained in the second step and generate CFRs for virtual subcarriers to be used in the next symbol time. The results of our simulations validate the effectiveness of our proposed channel estimation schemes. Full article
(This article belongs to the Special Issue Advances in Wireless and Optical Communication Systems)
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22 pages, 7051 KiB  
Article
Liquid Crystal-Filled 60 GHz Coaxially Structured Phase Shifter Design and Simulation with Enhanced Figure of Merit by Novel Permittivity-Dependent Impedance Matching
by Jinfeng Li and Haorong Li
Electronics 2024, 13(3), 626; https://doi.org/10.3390/electronics13030626 - 02 Feb 2024
Cited by 1 | Viewed by 859
Abstract
This work serves as the first simulation investigation to tackle the liquid crystal (LC)-filled coaxially structured continuously variable phase shifter at 60 GHz, wherein the LCs act as single tunable dielectrics fully occupying the millimeter-wave (mmW) power transmitted (i.e., free of leakage or [...] Read more.
This work serves as the first simulation investigation to tackle the liquid crystal (LC)-filled coaxially structured continuously variable phase shifter at 60 GHz, wherein the LCs act as single tunable dielectrics fully occupying the millimeter-wave (mmW) power transmitted (i.e., free of leakage or interference). Impedance and effective dielectric constant computations are settled, followed by the quantification of the interplay between the dielectric thickness and the dielectric constant (Dk) for a controlled 50 Ω impedance. Geometry’s aspect ratio (AR) effects are exploited for the coaxially accommodating topology filled with mmW-tailored LCs with an operatable Dk range of 2.754 (isotropic state) to 3.3 (saturated bias state). In addition to the proposed structure’s noise-free advantages, a novel figure of merit (FoM) enhancement method based on Dk-selection-based impedance matching is proposed. The optimum FoM design by simulation exhibits a 0–180.19° continuously variable phase shift with a maximum insertion loss of 1.75871 dB, i.e., a simulated FoM of 102.46°/dB when the LC-filled coaxial geometry is 50 Ω and matched with the Dk of 2.8, corresponding to the dielectric thickness of 0.34876 mm and line length of 15.92 mm. The envisioned device fabrication and assembly processes are free of the conventional polyimide alignment agent and the related thermal and electrical concerns. Significant cost reduction and yield improvement can hence be envisaged. The topology can also serve as a test structure for broadband characterizations of LC materials and new electro-optical effects. Full article
(This article belongs to the Special Issue Advances in Wireless and Optical Communication Systems)
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