A Method for Fault Tolerant Localization of Heterogeneous Wireless Sensor Networks

Location information of nodes in Wireless Sensor Networks (WSN) is essential to identify the origins events and act on them. Several localization algorithms are developed for this purpose. In work, we have considered hop based algorithms, which popularly used WSN applications. These use a few reference with location localize other these nodes. But, practical scenarios, some may turn faulty report incorrect This reduces accuracy entire network. Therefore, it filter out from process. Heterogeneous (HWSN), since both heterogeneous modify distances, becomes even more challenging only among set reported fault filtering method that can be any existing fault-tolerant localization. first normalizes distance estimations using communication radius then uses Jenks Natural Breaks algorithm producing inconsistent estimations. The incorporated into tested 2D/3D, isotropic/anisotropic environments. results show an improvement 14%, 52%, 51% when DV-Hop, Weighted HHO-AM respectively.