Robust Region Based Localization for Practical Sensor Networks

Node localization is very important for wireless sensor networks. Traditional localization methods usually cannot perform well in practical sensor networks which are affected by several well-known factors, such as low node density, anisotropic deployment terrain, imprecise GPS node position and noisy range measurements. In this paper, we propose a robust region based localization approach which is able to naturally address these factors. An iterative and distributed implementation based on clustering is also given to provide scalability and energy efficiency.