Modified Dive and Rise Technique Incorporating Enhanced Weighted Centroid Localization Algorithm with Ocean Current Mobility Model in Underwater Acoustic Sensor Networks

Abstract

Underwater Acoustic Sensor Networks (UASN) have a wide variety of applications such as oil platform monitoring, prediction of natural disasters, monitoring the pollution levels, study of aquatic life, etc. The next step after the deployment of sensor nodes in the subsea environment is their localization. Localization is a vital requirement to utilize the sensed data effectively and it is necessary for trailing of nodes and detection of the target. In this paper, drifting of unlocalized nodes caused by changes in ocean currents or other factors that are modelled by using Meandering Current Mobility (MCM) Model and the unlocalized nodes computes their positional coordinates by the Modified Dive and Rise Technique (MDRT) incorporating Enhanced Weighted Centroid Localization (EWCL) algorithm. Simulation results indicate that the proposed MDRT with EWCL algorithm outperforms the existing MDRT with DV Hop localization algorithm in terms of packet delivery ratio, delay, localization ratio, and coverage.