Interference and Bandwidth Aware Depth Based Routing Protocols in Underwater WSNs

Many researcher has paid their to explore and monitor the under water environment. There are lot of application of Underwater WSNs like environment monitoring, exploration of under water surfaces, disaster preventions assisted navigation etc. Underwater sensors are totally different from the terrestrial sensors. Terrestrial sensor network uses the radio signal and underwater sensor network uses the acoustic signal. As the radio signal has not good strength that it can propagate in the water. The Radio signal can propagate over the large distance as compared to the acoustic signals. Therefor, acoustic signal are used. In this paper, we propose Energy Hole Repairing Depth based routing protocol (EHRDBR) and Interference-Bandwidth aware Depth based routing (IBDBR) protocol. In both protocols, nodes move toward the specific area where the other node dies and cover the energy hole. In EHRDBR, forwarder node is selected on the basis of the interference residual energy, and depth parameters. In IBDBR, interference, bandwidth, residual energy, and depth parameters are used to select the forward node. Our protocols have performed better in network lifetime, throughput and ene to end delay.