Abstract
Objective: This paper represents an energy efficient algorithm for localization of nodes in wireless sensor network by the help of a small number of anchor nodes (mobile). It calculates the node distance and node location. Method/Statistical Analysis: A small group of mobile dynamic anchor node is being associated with a powerful GPS receiver, Radio frequency and ultrasonic device. Location information is broadcasted periodically by the mobile anchor node and by trilateration/ multilateration technique, the static node location is calculated. To calculate the approximate position of a sensor node it takes three rounds. Findings: The technique is evaluated with the matlab and result compared with chord selection approach. The simulation result shows that the proposed localization method performs better and efficient than the other localization algorithms. Application/Improvement: The proposed algorithm adopts distance measurement as TDOA technique and static sensor node can localize when it comes into the reception range. The method is applicable location computation based routing, sensing nodes, node signal processing, and for node localization.
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