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Technologies
Special Issues
Perpetual Sensor Nodes for Sustainable Wireless Network Applications
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Special Issue "Perpetual Sensor Nodes for Sustainable Wireless Network Applications"

A special issue of Technologies (ISSN 2227-7080). This special issue belongs to the section "Information and Communication Technologies".

Deadline for manuscript submissions: 29 February 2024 | Viewed by 3155

Special Issue Editors

Dr. Johan Jair Estrada-López

E-Mail Website
Guest Editor
Faculty of Mathematics, Autonomous University of Yucatan, Anillo Periférico Norte, Tablaje Cat., Mérida 13615, Yuc., Mexico
Interests: energy harvesting; power management; Internet of Things; wireless sensor networks
Prof. Dr. Alejandro A. Castillo Atoche

E-Mail Website
Guest Editor
Department of Mechatronics, Autonomous University of Yucatan, Av. Industrias No Contaminantes s/n, Cordemex, Merida 97203, Yuc., Mexico
Interests: intelligent signal processing; wireless sensor networks; Internet of Things; power management; smart materials; composite materials
Dr. Javier Vázquez-Castillo

E-Mail Website
Guest Editor
Deparment of Engineering, University of Quintana Roo, Chetumal 77019, QR, Mexico
Interests: electronic design; energy harvesting systems; wireless sensor networks

Special Issue Information

Dear Colleagues,

Over the last few years, there has been an increasing interest in the development of wireless sensor networks (WSNs) for a variety of applications, such as structural health monitoring, smart homes and buildings, agriculture and environmental monitoring, among others. However, the widespread adoption of WSN technology has been limited partly due to sustainability and maintenance cost concerns. One important concern is the need of eventually performing battery replacement for tens or even hundreds of sensing devices scattered over a large-area field. Therefore, there is a necessity to explore different approaches for the extension of battery life in sensor nodes. This Technologies Special Issue is focused on addressing energy harvesting, energy conservation, and wireless power transfer approaches to the development of sustainable and cost-effective wireless sensor nodes. Potential topics include (but are not limited to) ultra-low-power hardware architectures and communication protocols for sensor nodes, wireless-power-transfer-enabled sensor nodes, novel energy harvesting transducers, energy harvesting circuits for sensor nodes, predictive energy harvesting techniques, energy-saving and energy-aware battery management techniques, and low-power machine learning algorithms for wireless networks.

Dr. Johan Jair Estrada-López
Prof. Dr. Alejandro A. Castillo Atoche
Dr. Javier Vázquez-Castillo
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. Technologies 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 1400 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

  • energy harvesting
  • wireless sensors
  • battery-management
  • low-power communications
  • machine learning

Published Papers (2 papers)

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Article
Miniaturized Compact Reconfigurable Half-Mode SIW Phase Shifter with PIN Diodes
by
Franky Dakam Wappi
,
Bilel Mnasri
,
Alireza Ghayekhloo
,
Larbi Talbi
and
Halim Boutayeb
Technologies 2023, 11(3), 63; https://doi.org/10.3390/technologies11030063 - 23 Apr 2023
Viewed by 1395
Abstract
In this work, a novel electrically reconfigurable phase shifter based on a half-mode substrate integrated waveguide (HM-SIW) is proposed. SIW is a guided transmission line topology, and by using half-mode excitation, a smaller size can be achieved. Phase shifters are electronic devices that [...] Read more.
In this work, a novel electrically reconfigurable phase shifter based on a half-mode substrate integrated waveguide (HM-SIW) is proposed. SIW is a guided transmission line topology, and by using half-mode excitation, a smaller size can be achieved. Phase shifters are electronic devices that change the phase of transmission for a wide range of applications, including inverse scattering and sensing. The tunability of PIN diodes is applied here to achieve a reconfigurable design. The proposed single-layer structure does not require extra wiring layers for the bias circuit on the suggested printed circuit board. Its principle consists in the integration, in the HM-SIW, of three parallel lines, each connecting the edge of the HM-SIW and linked to a PIN diode and a radial stub. Here we present the results of measurements for a frequency band from 4.5 to 7 GHz that demonstrate how the experiment agrees with simulations. Insertion loss was less than −10 dB, and port coupling was less than −2 dB for both simulation and measurement solutions. The proposed half-mode structure is around half the size of a typical SIW line. With the proposed design, the seven states of the PIN diodes can be validated (ON and OFF), with a wide band adaptation and a relatively constant phase difference across a broad frequency range (44%). A key benefit of the proposed design for a microwave component is the reduction of extra biasing layers for the PIN diodes. This is in addition to the reduced size of the transmission line compared to a commercial SIW. In the annexed section, simulation software is used for a more comprehensive analysis involving more phase shift values and parametric studies. Full article
(This article belongs to the Special Issue Perpetual Sensor Nodes for Sustainable Wireless Network Applications)
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Article
Synthesis of Quadband mm-Wave Microstrip Antenna Using Genetic Algorithm for Wireless Application
by
Arebu Dejen
,
Jeevani Jayasinghe
,
Murad Ridwan
and
Jaume Anguera
Technologies 2023, 11(1), 14; https://doi.org/10.3390/technologies11010014 - 16 Jan 2023
Cited by 2 | Viewed by 1254
Abstract
Antennas with multifunctional capabilities integrated into a single device that demonstrates a high performance are in demand, and microstrip antennas with quadband coverage are very useful for a wide range of mm-wave applications. Antennas and propagation at mm-wave frequencies, on the other hand, [...] Read more.
Antennas with multifunctional capabilities integrated into a single device that demonstrates a high performance are in demand, and microstrip antennas with quadband coverage are very useful for a wide range of mm-wave applications. Antennas and propagation at mm-wave frequencies, on the other hand, poses several challenges which can be overcome by applying performance enhancement techniques to meet design objectives. This article presents the use of a binary-coded genetic algorithm for developing an improved quadband mm-wave microstrip patch antenna. The patch shape was optimized by dividing a conducting surface into 6 × 6 tiny rectangular blocks. The algorithm generated the solution space by introducing conducting and nonconducting features for each radiating cell on the patch surface and then greedily searched for the best-fitted individual based on the cost function. With the combination of High-Frequency Structure Simulator (HFSS) and MATLAB, candidate antennas were iteratively modeled by applying the suggested algorithm. The optimized antenna resonated at four frequencies centered at 28.3 GHz, 38.1 GHz, 46.6 GHz, and 60.0 GHz. The antenna realized a peak broadside directivity of 7.8 dB, 8.8 dB, 7.3 dB, and 7.1 dB, respectively, with a total operating bandwidth of 11.5 GHz. The research findings were compared with related works presented in the literature and found that the optimized antenna outperformed them in terms of bandwidth, directivity, and efficiency. Full article
(This article belongs to the Special Issue Perpetual Sensor Nodes for Sustainable Wireless Network Applications)
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