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Localization as a fundamental issue has a challenge in wireless sensor networks (WSNs). Many approaches have been proposed to solve the inaccurate node localization. Among range-free algorithms, DV-Hop (Distance Vector-hop) is a well-known localization algorithm that utilizes of hop-distance estimation to locate sensor nodes. This has lead positioning accuracy is limited. In this paper, an improved...
Localization of the sensor nodes is a major obstacle for practical applications of the wireless sensor networks (WSNs). This Paper presents a cooperative localization method based on vision in wireless sensor networks. Based on the video vision characteristics, the distances between sensor nodes in the network are obtained with respect to some 3 chosen nodes whose locations are a- priori known. These...
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