A localization algorithm based on single mobile anchor node is proposed. Due to node coordinates is unknown

the algorithm adopts grid center as virtual nodes to generate virtual force with anchor nodes

and state of anchor node is influenced by virtual force. Initial state variable of anchor node is randomly generated

and anchor node moves to a new location under action of virtual force. To effectively avoid movement of termination of anchor node mobile and local loop

anchor node updates its status variables by Kalman filtering

combining controlled variables of virtual force with the previous state to generate the current state of anchor node. Eventually

positioning precision

node energy consumption as well as network coverage rate are simulated respectively under the condition of energy limited anchor node and all unknown node to be located

simulation results show that this localization algorithm effectively avoids mobile termination of anchor node and avoid local death loop

meanwhile

to a great extent

improve positioning precision of nodes

reduce network energy consumption.