MobiSink: Cooperative Routing Protocol for Underwater Sensor Networks with Sink Mobility

We propose a new routing protocol MobiSink (mobile sink) for underwater sensor networks (UWSNs). We deploy the sink mobility in four horizontal regions of the network. The mobile sink moves in its own region to collect data from the transmission range sensor nodes. The transmission range of a node is calculated after fixed interval of time for mobile sink. In MobiSink nodes also take help of transmission range neighbors to communicate with sink cooperatively, if sink is out of range. The mobility pattern of sink and cooperative routing achieved better results as compared with other depth based routing protocols. The MobiSink scheme is validated via simulation, which shows better performance compared with depth based routing (DBR) and energy efficient depth based routing (EEDBR) protocols in terms of network life time, throughput and energy consumption.