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QGLG Automatic Energy Gear-Shifting Mechanism with Flexible QoS Constraint in Cyber-Physical Systems: Designing, Analysis, and Evaluation
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Author(s): Xindong You (Beijing Institute of Graphic Communication, Tsinghua University, Beijing, China), Yeli Li (Beijing Institute of Graphic Communication, Tsinghua University, Beijing, China), Zhenyang Zhu (Hangzhou Dianzi University, Hangzhou, China), Lifeng Yu (Hithink RoyalFlush Information Network Co., Ltd, Hangzhou, China)and Dawei Sun (School of Information Engineering, China University of Geosciences, Beijing, China)
Copyright: 2018
Volume: 29
Issue: 1
Pages: 23
Source title:
Journal of Database Management (JDM)
Editor(s)-in-Chief: Keng Siau (City University of Hong Kong, Hong Kong SAR)
DOI: 10.4018/JDM.2018010103
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Abstract
This article describes how with the continuous expansion on the volume of data produced by sensors in Cyber Physical Systems, the scale of the cloud storage system has become larger. This will lead to the problems of a high energy consumption rate and a low utilization becoming a serious issue. In order to enhance the effective energy consumption, reduce the invalid energy consumption, and supply more flexible QoS for users in CPS, this article proposes an automatic energy gear-shifting mechanism with flexible QoS constraints (QGLG). The QGLG predicts system load of the follow-up period through a support vector machine model. According to the current system load, the predicted load, and the flexible QoS, QGLG automatically up-shifts and down-shifts among nodes. Substantive results from the simulation experiments done on GridSim show that the QGLG can achieve energy consumption reduction while satisfying the user's flexible QoS requirements. Compared with a similar energy-reducing mechanism, QGLG has its obvious advantage when considering the requirements of user with energy saved notwithstanding.
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