An Efficient Distance Estimation Algorithm for Indoor Sensor Network

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Provided by: International Journal of Computer Theory and Engineering (IJCTE)
Topic: Networking
Format: PDF
Localization in sensor networks deals with the estimation of the position of the sensor node in a network for a given incomplete and inaccurate pair-wise distance measurements. Such distance data may be acquired by a sensor node by communicating with neighboring nodes called anchor nodes whose positions are known Apriori. This paper proposes a Kalman filtering based distance estimation algorithm for indoor wireless sensor networks. In this paper, the distance of the unknown node is computed based on the Received Signal Strength (RSS) measurements. The effect of path loss and attenuation in the wireless medium are also considered in this proposed algorithm.
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