Sensor cloud data transmission algorithm based on fog computing

Abstract

The invention discloses a sensor cloud data transmission algorithm based on fog computing. The algorithm comprises the steps of 1), taking base stations of a sensor network layer as a fog node layer and generating Voronoi diagrams according to locations of the base stations; 2), carrying out statistics on the number of sensor nodes in various diagram regions, calculating a region node average number: the region node average=the total number of sensor nodes / the total number of the base stations, and analyzing call-in and call-out condition of the various diagram regions through combination of the region node average number; and 3), setting a scheduling algorithm among the regions. According to the algorithm, the base stations in the bottom layer network are taken as the fog nodes, the nodes cooperate with each other and are responsible for scheduling the nodes in the busy areas of the base stations to relatively idle areas, the communication capabilities among the fog nodes are utilized fully, the data is uniformly uploaded to an uploading cloud, and the network throughput is improved to the greatest extent.

Description

technical field [0001] The invention relates to the field of sensor cloud data transmission, in particular to a sensor cloud data transmission algorithm based on fog computing. Background technique [0002] Wireless sensor networks (Wireless Sensor Networks, WSNs) have the advantages of rapid deployment and strong real-time performance. It expands people's ability to collect external information. By deploying sensor nodes in different environments, people can easily collect various required data, grasp the status information of the monitoring area in real time, and realize the integration of the information world and the physical world. However, due to the limitations of sensor nodes in computing, storage, energy and many other aspects, how to effectively manage large-scale wireless sensor networks to give full play to their performance is still a very challenging problem. In recent years, with the rapid development of cloud computing, the combination of sensor network and ...

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Problems solved by technology

[0006] The main purpose of the present invention is to overcome the problem of insufficient data transmission and poor real-time performance from the underlying network to the upper cloud in the sensor cloud system, and propose a sensor cloud data transmission algorithm based on fog computing, which introduces the idea of ​​fog computing into mobile In the sensor network, the nodes (base stations) with strong functions are used as "fog". Through mutual cooperation between fog nodes (base stations), the overall throughput of the system is improved and the system delay is reduced.

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