Optimizing Energy through Parabola Based Routing in Underwater Sensor Networks

This paper looks into the problems faced by Underwater Sensor Networks (UWSNs), with regard to energy optimization and efficient data delivery. A new algorithm is proposed which uses the properties of a "Parabola" in order to transmit data packets from source to destination. The scheme is called the "Parabola-based Routing"(PBR) algorithm. The algorithm is adaptive, and transmits packets in hop-by-hop fashion. Each node in the scenario is aware of its location in the form of its Cartesian coordinates. These coordinates help the nodes in the formation of the parabola for packet sending, as well as in knowing the location of other nodes. The best suited node is selected every time so as to maintain low probability of data transmission failure and optimum energy consumption thereby, using greedy approach every time in selecting the node for packet transmission. In order, to maintain the packet delivery ratio, a hop-by-hop "acknowledgement process" has also been devised. We have validated the efficiency of our algorithm through simulation analysis. The simulation results indicate a better performance of PBR over DSR in both mobile and static scenarios.