A geometric dilution of precision based 3D indoor positioning scheme

Abstract

A geometric dilution of precision(GDOP) based 3D indoor positioning scheme was proposed for the layout of anchor nodes.Through the proposed scheme,the biconical configuration could be obtained.The performance of the scheme was evaluated by utilizing two different ranging error models.Simulation results indicated that the scheme can be applied to various scenes with different sizes.Furthermore,the proposed scheme had considerable accuracy improvement in the same positioning environment compared with existing layout scheme