BFDREAM: A new routing protocol for deep sea acoustic network

The directed routing protocol ends in failure when it faces the situation of the destination node with a very low velocity in a sparse ad hoc network because none of nodes exists in its forwarding zone. Although the situation is handled by its recovery procedure, continual retransmission will lead to a terrible waste of network resource and a great delay in packets transmission. On the basis of physical characteristics of acoustic network in deep sea, this paper proposed a novelty routing protocol: BFDREAM (Boundary Forwarding DREAM). The protocol absorbs the essence of directing flooding and boundary forwarding, and reduces quantities of the non-effect information created in data transmission. Simulation results show that our protocol achieves much higher performance in energy saving and propagation delay decreasing compared with DREAM. It has a bright application prospect in underwater acoustic networks.