Starting from the requirements of water environment monitoring application

propose target and constraints of node deployment in 3D underwater space. And then

in order to solve imbalance energy consumption problems of nodes after sparse deployed in model of three-layer underwater wirless sensor networks（ UWSNs）

an inhomogeneous simple cubic lattice node deployment algorithm is proposed. This algorithm is designed by increasing the number of nodes of each layer and adjusting communication distance between nodes to control energy consumption of nodes combining energy consumption of underwater acoustic communication. The analysis and simulation on this algorithm from network lifetime and energy consumption is discussed

results show that the algorithm can not only guarantee the coverage requirements and control the density of nodes deployment

but also balance energy consumption of nodes and prolong the network lifetime.