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

Fault tolerance in IoT systems is challenging to overcome due to its complexity, dynamicity, and heterogeneity. IoT systems are typically designed and constructed in layers. Every layer has its requirements and fault tolerance strategies. However, errors in one layer can propagate and cause effects...

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Autores principales:	Mário Melo, Gibeon Aquino
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	IoT dependability fault tolerance error detection error recovery reliability Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/61c90f19ecba4f47989eaad8dd8f4979
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id	oai:doaj.org-article:61c90f19ecba4f47989eaad8dd8f4979
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spelling	oai:doaj.org-article:61c90f19ecba4f47989eaad8dd8f49792021-11-11T19:10:21ZFaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems10.3390/s212171811424-8220https://doaj.org/article/61c90f19ecba4f47989eaad8dd8f49792021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7181https://doaj.org/toc/1424-8220Fault tolerance in IoT systems is challenging to overcome due to its complexity, dynamicity, and heterogeneity. IoT systems are typically designed and constructed in layers. Every layer has its requirements and fault tolerance strategies. However, errors in one layer can propagate and cause effects on others. Thus, it is impractical to consider a centralized fault tolerance approach for an entire system. Consequently, it is vital to consider multiple layers in order to enable collaboration and information exchange when addressing fault tolerance. The purpose of this study is to propose a multi-layer fault tolerance approach, granting interconnection among IoT system layers, allowing information exchange and collaboration in order to attain the property of dependability. Therefore, we define an event-driven framework called FaTEMa (Fault Tolerance Event Manager) that creates a dedicated fault-related communication channel in order to propagate events across the levels of the system. The implemented framework assist with error detection and continued service. Additionally, it offers extension points to support heterogeneous communication protocols and evolve new capabilities. Our empirical results show that introducing FaTEMa provided improvements to the error detection and error resolution time, consequently improving system availability. In addition, the use of Fatema provided a reliability improvement and a reduction in the number of failures produced.Mário MeloGibeon AquinoMDPI AGarticleIoTdependabilityfault toleranceerror detectionerror recoveryreliabilityChemical technologyTP1-1185ENSensors, Vol 21, Iss 7181, p 7181 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	IoT dependability fault tolerance error detection error recovery reliability Chemical technology TP1-1185
spellingShingle	IoT dependability fault tolerance error detection error recovery reliability Chemical technology TP1-1185 Mário Melo Gibeon Aquino FaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems
description	Fault tolerance in IoT systems is challenging to overcome due to its complexity, dynamicity, and heterogeneity. IoT systems are typically designed and constructed in layers. Every layer has its requirements and fault tolerance strategies. However, errors in one layer can propagate and cause effects on others. Thus, it is impractical to consider a centralized fault tolerance approach for an entire system. Consequently, it is vital to consider multiple layers in order to enable collaboration and information exchange when addressing fault tolerance. The purpose of this study is to propose a multi-layer fault tolerance approach, granting interconnection among IoT system layers, allowing information exchange and collaboration in order to attain the property of dependability. Therefore, we define an event-driven framework called FaTEMa (Fault Tolerance Event Manager) that creates a dedicated fault-related communication channel in order to propagate events across the levels of the system. The implemented framework assist with error detection and continued service. Additionally, it offers extension points to support heterogeneous communication protocols and evolve new capabilities. Our empirical results show that introducing FaTEMa provided improvements to the error detection and error resolution time, consequently improving system availability. In addition, the use of Fatema provided a reliability improvement and a reduction in the number of failures produced.
format	article
author	Mário Melo Gibeon Aquino
author_facet	Mário Melo Gibeon Aquino
author_sort	Mário Melo
title	FaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems
title_short	FaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems
title_full	FaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems
title_fullStr	FaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems
title_full_unstemmed	FaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems
title_sort	fatema: a framework for multi-layer fault tolerance in iot systems
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/61c90f19ecba4f47989eaad8dd8f4979
work_keys_str_mv	AT mariomelo fatemaaframeworkformultilayerfaulttoleranceiniotsystems AT gibeonaquino fatemaaframeworkformultilayerfaulttoleranceiniotsystems
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FaTEMa: A Framework for Multi-Layer Fault Tolerance in IoT Systems

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