An Energy-Efficient Three-Dimensional Positioning Technology for Underwater Acoustic Wireless Sensor Network
The self-positioning for the nodes is the prerequisite for wireless sensor network to work, especially considering that the deployment of underwater node changes rapidly in position. Taking the issue of energy efficiency and prolong the network lifetime into account, the energy-efficient positioning technology of the underwater acoustic sensor network is studied in this paper .Brief introduction of the current node positioning technology is concluded in this paper too. Similarly to the overlapping ideological positioning algorithm FTPL we introduce RSSI but not for the ranging. Also discuss the inadequacies of our new algorithm, and the possible improvements. Simulation results show that the improved algorithm has good improvement in both the accuracy and the energy efficiency.