Journal Article

·2025

Neuromorphic Circuits With Spiking Astrocytes for Increased Energy Efficiency, Fault Tolerance, and Memory Capacitance

Aybars Yunusoglu , Dac‐Nhuong Le , Murat Isik , I. Can Dikmen YTU , Teoman Karadağ

Abstract

In the rapidly advancing field of neuromorphic computing, integrating biologically-inspired models like the Leaky Integrate-and-Fire Astrocyte (LIFA) into spiking neural networks (SNNs) enhances system robustness and performance. This paper introduces the LIFA model in SNNs, addressing energy efficiency, memory management, routing mechanisms, and fault tolerance. Our core architecture consists of neurons, synapses, and astrocyte circuits, with each astrocyte supporting multiple neurons for self-repair. This clustered model improves fault tolerance and operational efficiency, especially under adverse conditions. We developed a routing methodology to map the LIFA model onto a fault-tolerant, many-core design, optimizing network functionality and efficiency. Our model features a fault tolerance rate of $\mathbf{8 1. 1 0 \%}$ and a resilience improvement rate of $\mathbf{1 8. 9 0 \%}$, significantly surpassing other implementations. The results validate our approach in memory management, highlighting its potential as a robust solution for advanced neuromorphic computing applications. The integration of astrocytes represents a significant advancement, setting the stage for more resilient and adaptable neuromorphic systems.

Keywords

Neuromorphic engineering Robustness (evolution) Fault tolerance Spiking neural network Resilience (materials science) Artificial neural network Routing (electronic design automation) Energy (signal processing) Computer science

Subject Areas

Advanced Memory and Neural Computing ·Electrical and Electronic Engineering ·Physical Sciences
Ferroelectric and Negative Capacitance Devices ·Electrical and Electronic Engineering ·Physical Sciences
Neuroscience and Neural Engineering ·Cellular and Molecular Neuroscience ·Life Sciences

Citations by Year