Optimization of tag anti-collision algorithm for EPC Gen2 RFID

The proliferation of the RFID (Radio-Frequency IDentification) technology in the last decade shows its importance as effective solution for a large variety of application scenarios, such as monitoring, homeland security, healthcare, logistic and last but not the least Internet of Things. Actually, an accurate RFID modeling, optimization and performance analysis via simulation is strongly desired. In this paper, the authors propose two innovations of tag anti-collision algorithm in EPC Gen 2 RFID Specification: i. the adaptive management of Q-parameter (to maximize the efficiency of the inventory procedure depending on the tags number) and its communication by a QueryAdjust command, and ii. the muting option, which silences the tags after their identification with the effect of reducing the offered load to the reader after each successful identification.