RSSI based Improved Weighted Centroid Localization Algorithm in WSN

Identification of localization for sensor nodes in wireless sensor nodes is significant issues in many aspects. Location of sensor nodes can be identified through different methods categories as range based and range free. Through this research work we have improved the localization accuracy by using two stage mechanisms. We are using range based location identification methods where we are using received signal strength indicator as primary factors. We are using conventional weighted centroid methods and fine tuned it by using propagation model based computational techniques by minimizing the reference nodes. We have tested our approaches using Cooja simulator and observed that the method can identify the location up to 97 percent accuracy.