Node Movement Prediction & Node Location Algorithm in Underwater Acoustic Sensor Networks

Abstract: Underwater Wireless Sensor Networks (UWSNs) are finding different applications for offshore exploration and ocean monitoring. In most of these applications, the network consists of significant number of sensor nodes deployed at different depths throughout the area of interest. The sensor nodes located at the sea bed cannot communicate directly with the nodes near the surface level; they require multi-hop communication assisted by appropriate routing scheme. However, this appropriateness depends not only on network resources and application requirements but also on environmental constraints. In our project, node location phase has proposed with the help of, a TOA (time of arrival)- based ranging strategy to reduce communication overhead and energy consumption. Then, after dimension reduction processing, the grey wolf optimizer (GWO) is used to find the optimal location of the secondary nodes with low location accuracy.

Keywords: UWSN, GWO, sensor network, node prediction