Cramer-Rao lower bound analysis on RSS-ranged localization model
Xinfang Zhang · Computer Engineering and Applications Journal · 2008
An unbiased estimator for distance and the Cramer-Rao lower bound of location estimation variance is presented based on RSS-ranged localization model.The experiment results indicate that the variance increases drastically near anchor nodes and is related to the numbers of the anchor nodes,which can be applied in evaluating the accuracy of some localization algorithm and selecting the solution of sensor nodes configuration.