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An Energy Efficient Integration Model for Sensor Cloud Systems
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DOI：10.1109/ACCESS.2018.2886806.png)
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摘要
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This paper proposes a novel information-centric prediction-based integration model for WSNs and the sensor cloud, which exploits the trade-off between the data accuracy requirement of applications, sensing data prediction quality, and the energy efficiency of sensors, to reduce the workloads and energy consumptions of resource-constrained sensors. The model decouples information producers (IPDs) (i.e., physical sensors) from information providers (IPVs), which are implemented as IPDs' virtual sensors in the sensor cloud, to enable IPVs to provide sensing services when IPDs sleep. In the model, we design an efficient interactive sensing data prediction scheme for IPDs and IPVs to predict and control the accuracy of the sensing data prediction of IPVs using internal temporal information correlation, community detection, and external information correlation among sensors. According to the data accuracy requirement of applications, the model controls: 1) the number of IPDs required to be active and 2) when an active IPD transmits sensing data to the sensor cloud, to maintain the quality of sensing data meeting the requirement. Through extensive experiments with data collected from the real-world IntelLab sensor deployment, we show that the model achieves significant improvements in terms of data transmission suppression ratio, energy efficiency, and response latency compared with the existing schemes.
Keyword:
Information centric wireless sensor networking
energy efficiency
sensor cloud
IoT cloud
interactive sensor data prediction
machine learning
sensor quality of information
SDN/NFV
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期刊
IF:
3.6
论文数:
9.8W
被引数:
29.4W
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