Table of Contents
Sensors, Volume 19, Issue 7 (April-1 2019)
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Cover Story (view full-size image) The combination of Cyber-Physical Systems (CPSs) and the Internet-of-Things (IoT) has enabled the [...] Read more. The combination of Cyber-Physical Systems (CPSs) and the Internet-of-Things (IoT) has enabled the evolution towards Industry 4.0. This paper focuses on fog to multi-cloud architectures for industrial applications, which allow a dynamic workload allocation that offers the most suitable service depending on the requirements of each application. The proposed system takes advantage of the cost reduction offered by Amazon EC2 spot instances and the high reliability and efficiency provided by Network Coding. We carried out a cost analysis using both real spot instance prices and prices obtained from a model based on a finite Markov chain. We analyzed the overall system cost depending on different parameters, showing that configurations that seek to minimize the storage yield a higher cost reduction, due to the strong impact of storage cost. View this paper.