Range based improved localization scheme in densely populated wireless sensor network

The techniques for identifying the position of any sensor node by means of co-ordinates is known as localization technique. Requirements of estimation of location come up from the importance of the sensor data and the events associated with the location. Here, the proposed research work has used range based method for location identification by using received signal strength indicator. Furthermore, the idea of weighted centroid methods are utilized for localization and simple propagation model based computational techniques to improve the accuracy. The two phase location identifying method is implemented and tested using Cooja simulator. The proposed model has obtained a satisfactory result up to 99 percent for location calculation.