Study on 3D node location algorithm for wireless sensor networks

The wireless sensor network node localization algorithms are studied more and more at present, but most are based on two-dimensional localization algorithm for three dimensional localization of too few. Based on the researches on the classic two-dimensional localization algorithm, and the trilateration was extended to three-dimensional localization algorithm. Error analysis of this algorithm was revealed in the classic two-dimensional and three-dimensional environment, and the node localization error with a linear relationship between average nodes ranging error was found.