Sanjoy Kumar Mondal

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A lot of wireless localization schemes using time of arrival (TOA) have been proposed in the literature with comprehensive performance comparisons in terms of accuracy, complexity and robustness. The major issue in TOA-based localization schemes is that the presence of error due to non-line-of-site (NLOS) propagation in the range measurements introduces a(More)
It is impossible to capture all of the semantics of real world information and to model it in a perfect way. Uncertain information being lacking information, individual interpretation of knowledge is taken into account. Most widely used relational model faced much difficulty to handle complex data requirements. The size of databases and their changing(More)
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