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FaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems.

Mário Melo1, Gibeon Aquino2

  • 1Academic Department, Federal Institute of Rio Grande do Norte, Lajes 59535-000, Brazil.

Sensors (Basel, Switzerland)
|November 13, 2021
PubMed
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This study introduces FaTEMa, a multi-layer fault tolerance framework for Internet of Things (IoT) systems. FaTEMa enhances dependability by enabling cross-layer communication for improved error detection and resolution.

Area of Science:

  • Computer Science
  • Electrical Engineering
  • Systems Engineering

Background:

  • Internet of Things (IoT) systems present significant fault tolerance challenges due to their inherent complexity, dynamic nature, and heterogeneity.
  • Traditional layered architectures with isolated fault tolerance strategies are insufficient as errors can propagate across layers.
  • A centralized approach to fault tolerance is impractical for comprehensive IoT systems.

Purpose of the Study:

  • To propose a multi-layer fault tolerance approach for IoT systems that facilitates collaboration and information exchange across layers.
  • To enhance system dependability by addressing fault tolerance in an interconnected, multi-layered manner.
  • To introduce an event-driven framework, FaTEMa (Fault Tolerance Event Manager), for managing fault-related events across IoT system layers.
Keywords:
IoTavailabilitydependabilityerror detectionerror recoveryfault tolerancereliability

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Main Methods:

  • Development of an event-driven framework, FaTEMa, to establish dedicated communication channels for fault events.
  • Implementation of FaTEMa to enable information exchange and collaboration among different IoT system layers.
  • Design of FaTEMa with extension points to support heterogeneous communication protocols and future capabilities.

Main Results:

  • Empirical results demonstrate significant improvements in error detection and resolution times with the introduction of FaTEMa.
  • The FaTEMa framework led to enhanced system availability and a notable reduction in the number of system failures.
  • The study confirmed reliability improvements in IoT systems utilizing the FaTEMa approach.

Conclusions:

  • The proposed multi-layer fault tolerance approach, implemented via the FaTEMa framework, effectively addresses the challenges of IoT dependability.
  • FaTEMa facilitates error detection, continued service, and improved reliability in heterogeneous and dynamic IoT environments.
  • The framework's design supports adaptability and extensibility, crucial for evolving IoT systems.