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计算机科学 2010
Fine-grained Distance Controlled Localization Algorithm in Wireless Sensor Networks
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Abstract:
An improved location discovery algorithm upon previous Hop-terrain localization algorithm was proposed in this paper.At first,the algorithm used distance vector exchange to get hop counts from sensors to anchors and estimate the initial positions of sensor nodes.Then it iteratively updated the sensor nodes' positions by utilizing the initial position estimates and information of immediate neighbors of sensors.A fine-grained distance control mechanism was introduced in the position iteration update phase to ...