Lightweight and robust data collection in a UWSN using a mobile sink

An Underwater Wireless Sensor Network has different characteristics as compared to those of a terrestrial one. These networks are vulnerable to a number of issues such as mobility of deployed nodes, communication delays due to unique deployment environment, limited bandwidth, etc. In this paper a novel lightweight and robust data collection strategy in underwater wireless sensor networks using a mobile sink to boost the performance and overall lifetime of the UWSNs has been presented. The proposed technique has been simulated using AquaSim to analyse the performance with respect to energy consumption, network throughput and packet delivery ratio while highlighting the vulnerabilities and challenges involving data aggregation in a UWSN.