Three-dimensional localisation for wireless sensor networks using probabilistic fuzzy logic

The application of wireless sensor networks (WSNs) has been greatly improved by the advance of micro-electromechanical systems (MEMS) and radio frequency (RF) technology. Compared with the traditional networks, WSNs are data-centric, self-configuring and self healing. In this paper, a novel probabilistic fuzzy logic based localisation algorithm is proposed which can be effectively used in three-dimensional (3D) spaces for localisation in wireless sensor networks (LWSNs). Simulation results demonstrate that the proposed algorithm scales well and provides excellent positioning accuracy when varying different deployment models.