A trilateral centroid localization and modification algorithm for wireless sensor network

Abstract

A localization and modification algorithm based on received signal strength indicator was studied to solve the key problem of sensor localization. To reduce the error due to the signal attenuation in complex electromagnetic environments, we come up with a trilateral centroid localization and modification algorithm for a wireless sensor network. The algorithm is based on the fact that an unknown sensor node’s initial location can be determined with a weighted centroid algorithm for a triangle. The final location information was modified by the modification algorithm.