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Trusted data collection method based on unmanned aerial vehicle in wireless sensor network

A wireless sensor network, data collection technology, applied in wireless communication, vehicle wireless communication services, services based on specific environments, etc. Cluster head node and other problems, to achieve the effect of reducing data transmission energy consumption, ensuring reliability, and extending network life

Inactive Publication Date: 2020-10-16
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current method, the position of the cluster head in the network is fixed, and it does not take into account that the cluster head node still undertakes more data forwarding tasks, so there is room for further optimization. Trusted malicious nodes, these nodes will seriously affect the data collection quality of the entire network

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  • Trusted data collection method based on unmanned aerial vehicle in wireless sensor network
  • Trusted data collection method based on unmanned aerial vehicle in wireless sensor network
  • Trusted data collection method based on unmanned aerial vehicle in wireless sensor network

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Embodiment Construction

[0013] In this embodiment, all sensing nodes in the wireless sensor network are randomly deployed in a square area, and this embodiment mainly includes the following contents.

[0014] Step 1. Select the cluster head node of the network according to the credibility of the node, and divide the network into clusters, so that each cluster contains a cluster head, and other nodes are added to different clusters according to the principle of proximity. Specifically, first set the threshold of node credibility as Q, when a node u i Credibility q i ≥Q, the node is allowed to become a cluster head candidate. Then randomly select N nodes among the cluster head candidates as the final cluster head. In addition, since we do not know the trust degree information of network nodes in the initial state of the network, we set the trust value of all nodes in the network to be 0.5 in the initial state, that is, it is uncertain whether it is credible or not. In one round of data collection, t...

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Abstract

The invention discloses a trusted data collection method based on an unmanned aerial vehicle in a wireless sensor network. The core technology of the method lies in trusted cluster head election, unmanned aerial vehicle flight path selection and node credibility dynamic updating. In each round of data collection, firstly, nodes are randomly selected according to initial credibility, or the node with higher credibility is selected as the cluster head according to the credibility data obtained by evaluation; and then a plurality of unmanned aerial vehicle flight path schemes are randomly generated according to the cluster head serial number, a path with the best effect is selected through the comprehensive evaluation index, and after the unmanned aerial vehicle completes data collection, thenode trust degree is evaluated, malicious nodes are identified and the data collection quality is improved. Meanwhile, the method employs the unmanned aerial vehicle to complete the data collection,thereby effectively reducing the energy consumption of the core node in the network, and prolonging the service life of the network.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a trusted data collection method based on a drone in a wireless sensor network. Background technique [0002] A wireless sensor network is a communication network composed of many sensors. These sensors are often distributed in different geographical areas to sense a specific phenomenon and collect relevant data, and then send the data to the network through the wireless sensor network. A target node - the sink node, which is responsible for collecting the perception data of the network. [0003] Since the energy consumption of the sensor is mainly concentrated in data transmission and data reception, the nodes closer to the sink node often undertake more data forwarding tasks, so the energy consumption is also greater. When the node dies due to energy exhaustion, It will cause the function of the wireless sensor network to be damaged and cannot operate normally, so people ...

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Application Information

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IPC IPC(8): H04W4/38H04W4/44H04W12/12H04W40/10H04W40/22H04W40/32H04W84/18
CPCH04W4/38H04W4/44H04W40/10H04W40/22H04W40/32H04W84/18Y02D30/70
Inventor 蒋博刘安丰滕浩钧
Owner CENT SOUTH UNIV