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Journal of Low Power Electronics and Applications, Volume 13, Issue 1

March 2023 - 22 articles

Cover Story: RISC-V has recently gained attention for safety applications thanks to its extendable instruction set and its many open-source implementations that allow for exploring multiple techniques to achieve fault tolerance. This work is centered on the application of the DMR paradigm within an interleaved multi-threading (IMT) RISC-V architecture, gaining the low overhead advantages of the DMR technique, overcoming the cost of saving checkpoints and restoring the software state using Dynamic TMR (DTMR) protection, which implies the behavior of a TMR only in the case of error detection. This work also demonstrates the concept of Dynamic TMR and how it can be applied to an existing RISC-V IMT core, evaluating the proposed technique through an extensive fault-injection (FI) simulation campaign. View this paper
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Articles (22)

  • Article
  • Open Access
4 Citations
5,913 Views
33 Pages

Energy Autonomous Wireless Sensing Node Working at 5 Lux from a 4 cm2 Solar Cell

  • Marcel Louis Meli,
  • Sebastien Favre,
  • Benjamin Maij,
  • Stefan Stajic,
  • Manuel Boebel,
  • Philip John Poole,
  • Martin Schellenberg and
  • Charalampos S. Kouzinopoulos

Harvesting energy for IoT nodes in places that are permanently poorly lit is important, as many such places exist in buildings and other locations. The need for energy-autonomous devices working in such environments has so far received little attenti...

  • Article
  • Open Access
10 Citations
4,168 Views
11 Pages

Study of Nitrogen-Doped Carbon Nanotubes for Creation of Piezoelectric Nanogenerator

  • Marina V. Il’ina,
  • Olga I. Soboleva,
  • Soslan A. Khubezov,
  • Vladimir A. Smirnov and
  • Oleg I. Il’in

The creation of sustainable power sources for wearable electronics and self-powered systems is a promising direction of modern electronics. At the moment, a search for functional materials with high values of piezoelectric coefficient and elasticity,...

  • Article
  • Open Access
4 Citations
3,316 Views
24 Pages

A Power-Efficient Neuromorphic Digital Implementation of Neural–Glial Interactions

  • Angeliki Bicaku,
  • Maria Sapounaki,
  • Athanasios Kakarountas and
  • Sotiris K. Tasoulis

Throughout the last decades, neuromorphic circuits have incited the interest of scientists, as they are potentially a powerful tool for the treatment of neurological diseases. To this end, it is essential to consider the biological principles of the...

  • Article
  • Open Access
3 Citations
3,456 Views
17 Pages

This contribution addresses the numerical optimization of the harvested energy of a mechanically and electrically nonlinear and nonideal piezoelectric energy harvester (PEH) under triangular shock-like excitation, taking into account a nonlinear stre...

  • Article
  • Open Access
4 Citations
3,923 Views
18 Pages

Reliability is a fundamental requirement in microprocessors that guarantees correct execution over their lifetimes. The reliability-related design rules depend on the process technology and device operating conditions. To meet reliability requirement...

  • Article
  • Open Access
18 Citations
7,679 Views
24 Pages

FPGA-Based Decision Support System for ECG Analysis

  • Agostino Giorgio,
  • Cataldo Guaragnella and
  • Maria Rizzi

The high mortality rate associated with cardiac abnormalities highlights the need of accurately detecting heart disorders in the early stage so to avoid severe health consequence for patients. Health trackers have become popular in the form of wearab...

  • Article
  • Open Access
3,535 Views
21 Pages

The execution of machine learning (ML) algorithms on resource-constrained embedded systems is very challenging in edge computing. To address this issue, ML accelerators are among the most efficient solutions. They are the result of aggressive archite...

  • Article
  • Open Access
5 Citations
3,889 Views
10 Pages

Simple Technique to Improve Essentially the Performance of One-Stage Op-Amps in Deep Submicrometer CMOS Technologies

  • Jaime Ramirez-Angulo,
  • Alejandra Diaz-Armendariz,
  • Jesus E. Molinar-Solis,
  • Alejandro Diaz-Sanchez and
  • Jesus Huerta-Chua

A comparative study of one-stage-amp performance improvement based on simulations in 22 nm, 45 nm, 90 nm, and 180 nm in deep submicrometer CMOS technologies is discussed. Generic SPICE models were used to simulate the circuits. It is shown that in al...

  • Article
  • Open Access
10 Citations
4,791 Views
18 Pages

A Fully-Differential CMOS Instrumentation Amplifier for Bioimpedance-Based IoT Medical Devices

  • Israel Corbacho,
  • Juan M. Carrillo,
  • José L. Ausín,
  • Miguel Á. Domínguez,
  • Raquel Pérez-Aloe and
  • J. Francisco Duque-Carrillo

The implementation of a fully-differential (FD) instrumentation amplifier (IA), based on indirect current feedback (ICF) and aimed to electrical impedance measurements in an Internet of Things (IoT) biomedical scenario, is presented. The IA consists...

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J. Low Power Electron. Appl. - ISSN 2079-9268