Special Issue "10th International Conference Modern Circuit and Systems Technologies (MOCAST 2021)"

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Circuit and Signal Processing".

Deadline for manuscript submissions: closed (20 December 2021) | Viewed by 4300

Special Issue Editors

Prof. Dr. Spyridon Nikolaidis
E-Mail Website
Guest Editor
Physics Department, Aristotle University of Thessaloniki, 54636 Thessaloniki, Greece
Interests: analysis and design of digital circuits and systems; power consumption modeling; timing analytical models for digital circuits; leakage detection and localization in metallic pipelines
Special Issues, Collections and Topics in MDPI journals
Dr. Alon Ascoli
E-Mail Website
Guest Editor
Institut für Grundlagen der Elektrotechnik und Elektronik, Technische Universität Dresden, 01062 Dresden, Germany
Interests: nonlinear circuits and systems; bio-inspired computing; neuromorphic engineering; memristive and memcapacitive technologies; cellular neural/nonlinear/nanoscale networks; theory of complexity
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The 10th International Conference on Modern Circuit and System Technologies on Electronics and Communications (MOCAST 2021) will take place in Thessaloniki, Greece, from 5 to 7 July, 2021. The MOCAST technical program includes all aspects of circuit and system technologies from modeling, design, and verification to implementation and application in the area of Electronics and Communications. This Special Issue aims at publishing extended versions of top-ranked papers in the conference. The topics of MOCAST include:

  • Analog/RF and mixed signal circuits;
  • Digital circuits and systems design;
  • Nonlinear circuits and systems;
  • Device and circuit modeling;
  • Systems and applications;
  • Communication systems;
  • Network systems;
  • Power management;
  • Imagers, MEMS, medical, and displays;
  • Radiation front ends (nuclear and space application);
  • Education in circuits, systems, and communications.

Prof. Dr. Spiros Nikolaidis
Dr. Alon Ascoli
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 2000 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

  • electronics
  • communications
  • circuits and systems
  • systems and applications

Published Papers (2 papers)

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Research

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Article
Design Space Exploration on High-Order QAM Demodulation Circuits: Algorithms, Arithmetic and Approximation Techniques
Electronics 2022, 11(1), 39; https://doi.org/10.3390/electronics11010039 - 23 Dec 2021
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Abstract
Every new generation of wireless communication standard aims to improve the overall performance and quality of service (QoS), compared to the previous generations. Increased data rates, numbers and capabilities of connected devices, new applications, and higher data volume transfers are some of the [...] Read more.
Every new generation of wireless communication standard aims to improve the overall performance and quality of service (QoS), compared to the previous generations. Increased data rates, numbers and capabilities of connected devices, new applications, and higher data volume transfers are some of the key parameters that are of interest. To satisfy these increased requirements, the synergy between wireless technologies and optical transport will dominate the 5G network topologies. This work focuses on a fundamental digital function in an orthogonal frequency-division multiplexing (OFDM) baseband transceiver architecture and aims at improving the throughput and circuit complexity of this function. Specifically, we consider the high-order QAM demodulation and apply approximation techniques to achieve our goals. We adopt approximate computing as a design strategy to exploit the error resiliency of the QAM function and deliver significant gains in terms of critical performance metrics. Particularly, we take into consideration and explore four demodulation algorithms and develop accurate floating- and fixed-point circuits in VHDL. In addition, we further explore the effects of introducing approximate arithmetic components. For our test case, we consider 64-QAM demodulators, and the results suggest that the most promising design provides bit error rates (BER) ranging from 101 to 104 for SNR 0–14 dB in terms of accuracy. Targeting a Xilinx Zynq Ultrascale+ ZCU106 (XCZU7EV) FPGA device, the approximate circuits achieve up to 98% reduction in LUT utilization, compared to the accurate floating-point model of the same algorithm, and up to a 122% increase in operating frequency. In terms of power consumption, our most efficient circuit configurations consume 0.6–1.1 W when operating at their maximum clock frequency. Our results show that if the objective is to achieve high accuracy in terms of BER, the prevailing solution is the approximate LLR algorithm configured with fixed-point arithmetic and 8-bit truncation, providing 81% decrease in LUTs and 13% increase in frequency and sustains a throughput of 323 Msamples/s. Full article
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Review

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Review
Analog Gaussian Function Circuit: Architectures, Operating Principles and Applications
Electronics 2021, 10(20), 2530; https://doi.org/10.3390/electronics10202530 - 17 Oct 2021
Cited by 8 | Viewed by 1718
Abstract
This review paper explores existing architectures, operating principles, performance metrics and applications of analog Gaussian function circuits. Architectures based on the translinear principle, the bulk-controlled approach, the floating gate approach, the use of multiple differential pairs, compositions of different fundamental blocks and others [...] Read more.
This review paper explores existing architectures, operating principles, performance metrics and applications of analog Gaussian function circuits. Architectures based on the translinear principle, the bulk-controlled approach, the floating gate approach, the use of multiple differential pairs, compositions of different fundamental blocks and others are considered. Applications involving analog implementations of Machine Learning algorithms, neuromorphic circuits, smart sensor systems and fuzzy/neuro-fuzzy systems are discussed, focusing on the role of the Gaussian function circuit. Finally, a general discussion and concluding remarks are provided. Full article
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