GCN-LG-Trust Model for Attack Detection and Cluster Optimization in Underwater Wireless Sensor Networks

The researchers focus on the security issues of underwater wireless sensor networks (UWSNs) due to the specificity of network environment. In recent years, researchers have proposed trust models to assess the reliability of each node in the network. However, nodes in UWSNs are usually managed in clusters. Existing trust model evaluation algorithms and model training methods are not well-adapted to the network clustering structure. For this reason, we propose a trust model optimization based on graph convolutional network (GCN) and LightGBM for cluster management in this article, which we named GCN-LG-Trust. This trust model designs a trust parameter estimation method based on the node activity characteristics of the cluster network. And the network trust evidence is used to train the trust model by GCN-LG deep learning method. The GCN-LG-Trust model is tested in single attack and hybrid attack scenarios. The experimental results show that the proposed method has better results in terms of trust evaluation and accuracy.