![]() How to locate all nodes accurately through these few nodes is the focus of our research. In order to save cost and energy consumption, only a small number of sensing nodes in sensor networks usually know their own location. This paper mainly studies the node localization algorithm based on range-free. Therefore, it is of great significance to study the node self- localization technology of underwater acoustic sensor network. Underwater Acoustic Sensor Networks (UASNs) is one of the important technologies for marine environmental monitoring. Groundwater is an important source of human activities, agriculture and industry. ![]()
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