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Fog computing allows to connect the edge of the network, consisting of low cost Internet of Things devices, with high end cloud servers. Fog devices can perform data processing, which can significantly reduce the delay for the application. Moreover, data aggregation can be carried out by fog devices which decrease the bandwidth needed being very important for the wireless part of the communication with the cloud servers. The edge-fog-cloud architecture is currently being rolled out for severaldoi:10.1007/s11276-019-02084-6 fatcat:nsd2p6l6rbanpmwa7rwgzdwhp4