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When compared to cloud computing, edge computing possesses many advantages [41] including:

Spontaneous Response: Some services can be handled by edge devices at the time of the emergency, thus eliminating the delay in the transmission of data from the cloud. So the response speed is spontaneous.

Efficient Data Management: The data collected from the IoT devices can be processed at the edge device by reducing the tasks of cloud computing. Latency could be reduced and computation can be performed faster due to the low dependency on cloud computing.

Bandwidth Utilized Efficiently: Any large amount of tasks in computation can be handled by distributed nodes of edge computing, eliminating the process of data transmission to the cloud. Thus the pressure of additional transmission in the network is eliminated and the bandwidth is utilized efficiently.

Figure 4.1 Edge computing architecture.

Powerful Data Storage: Backup of the data for edge devices that consist of an enormous storage area and high processing capabilities of huge data can be obtained from the cloud.