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Selected Paper from GC-ElecEng 2020
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Selected Paper from GC-ElecEng 2020

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Electronic Sensors".

Deadline for manuscript submissions: closed (31 January 2021) | Viewed by 3005

Special Issue Editor

Prof. Dr. Càndid Reig

E-Mail Website
Guest Editor
Department of Electronic Engineering, University of Valencia, 46100 Burjassot, Spain
Interests: GMR based-sensors; vision sensors; CMOS interfaces; printed antennas; magnetoresistance sensors; analog microelectronics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear colleagues,

This Special Issue has been created in collaboration with the Global 2020 Congress on Electrical Engineering (GC-ElecEng), remotely held 4–6 September May 2020 in Valencia (Spain). GC-ElectEng 2020 included the 1st International Conference on Sensors, Sensor Networks and Applications (MIC-Sensors 2020) as a member conference.

GC-ElectEng 2020 congress participants are cordially invited to contribute a full manuscript to this Special Issue by significantly extending (more than 50%) their conference papers.

Potential topics include but are not limited to:

  • Physical sensors;
  • Chemical sensors;
  • Wireless sensor networks;
  • Electronic sensor interfaces;
  • Sensor systems and applications;
  • Underwater sensors;
  • Simulators for sensor technology.

Prof. Dr. Càndid Reig
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. Sensors 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 2600 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

  • physical sensors
  • chemical sensors
  • wireless sensor networks
  • electronic sensor interfaces
  • sensor systems and applications
  • underwater sensors
  • simulators for sensor technology

Published Papers (1 paper)

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Research

37 pages, 3050 KiB  
Article
On the Use of NB-IoT over GEO Satellite Systems with Time-Packed Optical Feeder Links for Over-the-Air Firmware/Software Updates of Machine-Type Terminals
by Joan Bas and Alexis A. Dowhuszko
Sensors 2021, 21(12), 3952; https://doi.org/10.3390/s21123952 - 8 Jun 2021
Cited by 1 | Viewed by 2500
Abstract
The verticals of 5G, such as the automotive, smart grid, and smart cities sectors, will bring new sensors and IoT devices requiring Internet connectivity. Most of these machine-type terminals will be sparsely distributed, covering a very large geographical area and, from time to [...] Read more.
The verticals of 5G, such as the automotive, smart grid, and smart cities sectors, will bring new sensors and IoT devices requiring Internet connectivity. Most of these machine-type terminals will be sparsely distributed, covering a very large geographical area and, from time to time, will have to update their software, firmware, and/or other relevant data. Given this situation, one viable solution to implement the “Over-the-Air” update of these IoT terminals can be done with the aid of GEO satellite systems. However, due to the ultra-dense radio frequency reuse factor that contemporary High-Throughput Satellite (HTS) systems implement in the access link to serve the IoT terminals, the use of a time-packed Free Space Optical (FSO) link represents a practical solution to avoid the bottleneck that the satellite gateway experiences in the feeder link. The performance of both Detect-and-Forward and Decode-and-Forward relaying strategies are studied, assuming that the single-carrier M-PAM symbols that are transmitted on the optical feeder link are mapped into M-QAM symbols that modulate the multiple sub-carriers of the OFDM-based radio access link. In addition, the benefits of encapsulating the NB-IoT frames into DVB-S2(X) satellite frames is also analyzed in detail. The effects of the impairments introduced in both the optical feeder and radio access links are characterized in detail, and the end-to-end error correction capabilities of the Modulation and Coding Schemes (MCS) defined in the contemporary releases of the NB-IoT and DVB-S2(X) standards are studied for different working regimes. Full article
(This article belongs to the Special Issue Selected Paper from GC-ElecEng 2020)
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