Aitken Iterative Method Used in the Node Positioning for Wireless Sensor Network
Self-positioning of sensor nodes is one of the important research in the wireless sensor networks.In order to reduce the impact of nodes ranging error and location algorithm error to the node localization positioning accuracy in wireless sensor network,we established the iterative model based on the Aitken iterative formula for wireless sensor networks.It includes two phases,during the first phase,using DV-Hop algorithm to rough location;during the second phase,set up Aitken iteration model,using the first positioning results as the initial value,to obtain the optimal value of positioning results.The results shows that the algorithm can improve the accuracy of the node positioning,for the situation of low network node density and low proportion of beacon nodes,algorithm has an obvious effect.