RFID Indoor Localization Algorithm Based on Dynamic Netting

At present, the LANDMARC algorithm and VIRE (Virtual Reference Elimination) algorithm both use RFID technology in indoor localization. VIRE algorithm is a positioning method by eliminating the virtual tags based on active RFID. Because of the need of expending the gridding and the expandability character of the dynamic netting, the existing methods are not content with the need of the dynamic netting. After analyzing the drawback of VIRE, a new localization algorithm is proposed, which uses the existing result to calculate the new tags´ RSSI when the grid has been expanded, in order to make the actual computing more convenient and make the error smaller. The experimental results show that the new method enhances the precision of indoor localization.