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Review
. 2019 Dec 3;19(23):5324.
doi: 10.3390/s19235324.

When Sensor-Cloud Meets Mobile Edge Computing

Tian Wang  1   2 , Yucheng Lu  1 , Zhihan Cao  1 , Lei Shu  3 , Xi Zheng  4 , Anfeng Liu  5 , Mande Xie  6
Affiliations
Review

When Sensor-Cloud Meets Mobile Edge Computing

Tian Wang et al. Sensors (Basel). .

Abstract

Sensor-clouds are a combination of wireless sensor networks (WSNs) and cloud computing. The emergence of sensor-clouds has greatly enhanced the computing power and storage capacity of traditional WSNs via exploiting the advantages of cloud computing in resource utilization. However, there are still many problems to be solved in sensor-clouds, such as the limitations of WSNs in terms of communication and energy, the high latency, and the security and privacy issues due to applying a cloud platform as the data processing and control center. In recent years, mobile edge computing has received increasing attention from industry and academia. The core of mobile edge computing is to migrate some or all of the computing tasks of the original cloud computing center to the vicinity of the data source, which gives mobile edge computing great potential in solving the shortcomings of sensor-clouds. In this paper, the latest research status of sensor-clouds is briefly analyzed and the characteristics of the existing sensor-clouds are summarized. After that we discuss the issues of sensor-clouds and propose some applications, especially a trust evaluation mechanism and trustworthy data collection which use mobile edge computing to solve the problems in sensor-clouds. Finally, we discuss research challenges and future research directions in leveraging mobile edge computing for sensor-clouds.

Keywords: WSNs; cloud computing; mobile edge computing; sensor-clouds.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Trends of sensor-cloud research. (a) Related work; (b) Research directions.
Figure 2
Figure 2
Sensor-cloud architecture.
Figure 3
Figure 3
An application of cloud–edge collaboration in a smart greenhouse.
Figure 4
Figure 4
Mobile edge computing-enabled sensor-clouds.
Figure 5
Figure 5
Applying the three-layer storage scheme.
Figure 6
Figure 6
Trust evaluation based on the mobile edge node. (a) Direct trust evaluation; (b) Indirect trust delivery chain.
See this image and copyright information in PMC

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