An Energy-Efficient Routing Protocol Analysis for Underwater Sensor Networks

The main concept the paper involves the improvement of the efficiency of data packet delivery underwater. Efficient and consistent routing protocols are very much essential and crucial to underwater sensor networks (UWSNs). Nowadays terrestrial communication proves to be much simpler and the problems faced by them are different from nodes faced underwater. Acoustic communication that prevails underwater still makes sensor communication a colossal task. An approach to improve the underwater communication is by learning more about the acoustic signals. In this paper we propose a Greedy Perimeter Stateless Routing (GPSR), a novel routing protocol for wireless networks that will make use of positions of the available routers and the respected packet’s destination to make packet forwarding decisions. It makes use of greedy algorithm to forward packets using the information about the router's immediate neighbors in the topology. If the packet is forwarded to a region where greedy algorithm is impossible then it recovers by routing around the perimeter of the region. GPSR can make use of local topology information to find new routes to forward the data packets quickly.