A Group-Based Dynamic Framed Slotted ALOHA Anticollision Algorithm for Single Reader RFID System

摘要

Radio frequency identification (RFID) technologies have revolutionized the asset tracking industry, with applications ranging from automated check out to monitoring the medication intakes of elderlies. There are two challenges for the frame-slotted ALOHA algorithms in (RFID). The first challenge is estimating unknown tag-set size accurately; the second challenge is improving the efficiency of the arbitration process so that it uses less time slots to read all tags. A novel anticollision technique is proposed to maximize identification performance in slotted ALOHA-based (RFID) systems. The performances of these protocols are evaluated, and it is verified that this protocols outperform the traditional frame-slotted ALOHA protocols.