Identification of RFID Tags in Framed-Slotted ALOHA with Tag Estimation and Binary Splitting

In far field RFID systems, tag collision resolution is significantly important for fast tag identification. In this paper, we propose an accurate tag estimation method and an effective tag anti-collision protocol. Performance evaluation that the proposed estimation and anti-collision algorithm consumes 10-15% less time slots than the binary tree protocol and DFSA. The proposed algorithm has the tolerance to inaccuracy of tag estimation.