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Localization of Ordinary Nodes. Now, we will estimate the next location of the ordinary nodes. To estimate the accurate next location of ordinary nodes, we need the location and the movement speed of the anchor nodes as reference nodes, in addition to the previous locations of the ordinary nodes. Unlike the anchor nodes that know their initial locations, the ordinary nodes do not know their initial locations. Therefore, to calculate the initial location of ordinary nodes, we need to calculate the distance of the ordinary node from three anchor nodes at time t as given by equations (3), (4), and (5).
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