A cluster-based trust cloud data migration method in uwsns

Abstract

The invention discloses a clustering-based trust cloud data migration method in UWSNs (Underwater Wireless Sensor Networks). The method comprises the following steps: firstly, clustering nodes deployed in the form of a network, periodically calculating, by a cluster head, an average residual energy value in a cluster, and when the average residual energy value in the cluster is less than a set threshold value, sending, by the cluster head, a trust cloud data migration request to an AUV (Autonomous Underwater Vehicle) through a sink node; secondly, calculating, by the AUV, an optimal trust cloud data migration target node according to the trust cloud data migration request sent by the node in consideration of the residual energy, an average inter-cluster distance, a migration path length and a trust value factor, wherein the process mainly comprises selection of a target cluster and determination of the target node; thirdly, communicating, by the AUV, with the node storing trust cloud data to acquire the trust cloud data to be migrated, and migrating the trust cloud data to the target node; and finally, updating the trust cloud data generated in an AUV migration process. The clustering-based trust cloud data migration method disclosed by the invention can balance the energy consumption distribution of a network deployment region and maximize the life of the network.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and in particular relates to a trust cloud data migration method based on clustering in UWSNs. Background technique [0002] Currently, research on underwater wireless sensor networks (UWSNs) has become a hot topic. However, because the control conditions of the underwater environment and underwater mobile sensor nodes are much more difficult than those of land-based sensor networks, UWSN has not been fully utilized in complex underwater environments. One of the important issues is how to ensure the security of UWSN. [0003] The deployment of sensor nodes is prone to malicious attacks and sudden failures. As an important solution to the intrusion tolerance mechanism, trust management can analyze the behavior of nodes and their neighbor nodes, and use trust values ​​to describe the reliability of nodes, thereby ensuring the reliability of the sensor network. Node security and e...

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Problems solved by technology

[0009] In order to solve the problem of excessive energy consumption of the neighbor nodes of the source node, this invention proposes a trust cloud data migration method based on clustering in UWSNs. By clustering the network deployment area, the difference between the overall remaining energy value and the difference between the clusters is considered. The cluster capability value of the cluster can further determine the destination cluster and the destination node for the final trust cloud data migration, and use AUV to realize the process of migrating the trust cloud data to the destination node, so as to balance the energy consumption distribution of the network deployment area and maximize the network life

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