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A Real-Time Rfid Localization Experiment Using Propagation Models, Jason L. Brchan, Lianlin Zhao, Jiaqing Wu

CSE Conference and Workshop Papers

This paper introduces a real-time localization system (RTLS) using efficient multiple propagation models to compensate for the drawback of the received signal strength technique. The RTLS is implemented on an active RFID system and uses received signal strength measurements and reference tags for ranging. The RTLS is implemented purely in software that post processes the received signal strength data from the reader and does not require any additional hardware or any modifications to the RFID reader or tags. The proposed algorithm using multiple propagation models improves the performance of the RTLS. Two-dimensional localization results are given for a four-reader system …