Optimal Strategies of Routing Protocols in Underwater Acoustic Networks

This paper presents full path routing algorithm and optimal path routing algorithm in underwater communication network. The algorithms are based on the features of underwater sensor's energy consumption and movement, with the large propagation delay in underwater channel taken into consideration. Theory analysis and simulation results indicate that full path routing algorithm possesses good adaptability to the situation where underwater sensor moves around. Full path routing algorithm is also shown to be able to avoid the routing paralysis caused by any individual path failure. Besides, it can balance the energy consumption of nodes in the entire network. Optimal path routing algorithm is an efficient routing algorithm to solve the problem of limited underwater energy supply. It aims to find all shortest paths, thus the algorithm establishes the routing faster and has lower routing cost which adapts to a wide range of underwater network.