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Fog computing has been rising in popularity over the last few years due in part to the many benefits that Fog confers upon Internet of Things (IoT) applications. Fog Computing extends the Cloud to the IoT devices. In this paper, the author explore IoT, Fog, and Cloud, as well as the benefits that are possible and have been realized by utilizing the 3 technologies in a 3-tier architecture. A reference architecture is provided, applications of the 3-tier architecture from the literature are discussed, and recommendations are made for future work.
Ahuja et al. (Tue,) studied this question.