Matching grouping dynamic Frame Slotted ALOHA for anti-collision in RFID systems

In RFID system, one of the key problems is the collision between tags, and many methods have been proposed to solve the problem. Framed Slotted ALOHA is a widely used algorithm in the anti-collision field of RFID system. In this paper, Matching grouping Framed Slotted ALOHA Algorithm is proposed. Compared to the conventional algorithms, this algorithm groups the tags to match the length of the frame, and would resolve the" Stray problem" of the tags at the same time. The simulation results show that the algorithm can improve the average throughput of the RFID system.