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In Wireless Sensor Network (WSN), estimating the exact position of sensor node is an important research problem and its location accuracy impacts the efficiency of localization algorithms. In this paper improved centroid range free localization method is proposed and comparison with conventional centroid is done by varying different parameters such as anchor nodes, communication range and node density. The simulation results show the performance of proposed algorithm is superior to that of the conventional centroid algorithm, i.e., proposed centroid algorithm has high position accuracy.
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