An Advanced Anti-Collision Algorithm Based on Inter-Tag Communication Mechanism in RFID-Sensor Network

In this paper, an advanced anti-collision algorithm in RFID-sensor network based on inter-tag communication mechanism is proposed to improve the performance of the system. By employing the "Tag Communication Slot" (TCS) and designing the relevant hardware, the tags can communicate with each other, transmit useful data to fewer tags and reduce the number of tags participating in the identification process. In this way, we can efficiently reduce the collision rate with the increase of tag number and improve the tag starvation problem in Dynamic Framed-Slotted ALOHA algorithm (DFSA). The simulation results show that the TCS algorithm can greatly improve the system stability and identification efficiency especially in the case of large tag number.