查看文章

A failure may occur at all architectural levels of the Internet of Things (IoT) applications: sensor and actuator nodes can be missed, network links can be down, and processing and storage components can fail to perform properly. That is the reason for which fault-tolerance (FT) has become a crucial concern for IoT systems.

Our study aims at identifying and classifying the existing FT mechanisms that can tolerate the IoT systems failure. In line with a systematic mapping study selection procedure, we picked out 60 papers among over 2300 candidate studies. To this end, we applied a rigorous classification and extraction framework to select and analyze the most influential domain-related information. Our analysis revealed the following main findings: (i) whilst researchers tend to study fault-tolerant IoT (FT-IoT) in cloud level only, several studies extend the application to fog and edge computing; (ii …