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Open AccessArticle

An Adaptive Offloading Method for an IoT-Cloud Converged Virtual Machine System Using a Hybrid Deep Neural Network

by Yunsik Son 1,†, Junho Jeong 1,† and YangSun Lee 2,*
1
Department of Computer Engineering, Dongguk University, Seoul 04620, Korea
2
Department of Computer Engineering, Seokyeong University, Seoul 02713, Korea
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Sustainability 2018, 10(11), 3955; https://doi.org/10.3390/su10113955
Received: 28 September 2018 / Revised: 24 October 2018 / Accepted: 29 October 2018 / Published: 30 October 2018
(This article belongs to the Collection Advanced IT based Future Sustainable Computing)
A virtual machine with a conventional offloading scheme transmits and receives all context information to maintain program consistency during communication between local environments and the cloud server environment. Most overhead costs incurred during offloading are proportional to the size of the context information transmitted over the network. Therefore, the existing context information synchronization structure transmits context information that is not required for job execution when offloading, which increases the overhead costs of transmitting context information in low-performance Internet-of-Things (IoT) devices. In addition, the optimal offloading point should be determined by checking the server’s CPU usage and network quality. In this study, we propose a context management method and estimation method for CPU load using a hybrid deep neural network on a cloud-based offloading service that extracts contexts that require synchronization through static profiling and estimation. The proposed adaptive offloading method reduces network communication overheads and determines the optimal offloading time for low-computing-powered IoT devices and variable server performance. Using experiments, we verify that the proposed learning-based prediction method effectively estimates the CPU load model for IoT devices and can adaptively apply offloading according to the load of the server. View Full-Text
Keywords: Internet of Things; cloud system; offloading; virtual machine; static profiler; context information; deep neural network Internet of Things; cloud system; offloading; virtual machine; static profiler; context information; deep neural network
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Son, Y.; Jeong, J.; Lee, Y. An Adaptive Offloading Method for an IoT-Cloud Converged Virtual Machine System Using a Hybrid Deep Neural Network. Sustainability 2018, 10, 3955.

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