THREE-DIMENSIONAL LOCALIZATION SCHEME BASED ON LAYER IN WIRELESS SENSOR NETWORKS

摘要

Sensor localization has become an essential requirement for realistic applications over Wireless Sensor Networks (WSNs). The complex indoor environment of large-scale buildings, however, makes localization with WSNs in the area very challenging. In this paper, a range-free approach named Approximate Point In Layer (APIL) is proposed. It bases on the principle of the layer in the threedimensional space, which is appropriate to the sense of the large building complex indoor environment. Simulation results have verified the high estimation accuracy achieved with APIL, even under the complex propagation.