Performance study of dynamic framed slotted ALOHA for RFID systems

When more than two tags respond to a reader request at same time slot, the tag collision occurs. This is one of disadvantages in radio frequency identification (RFID) system. The performance of anti-collision algorithms is important to overcome this problem. In this paper, the performance of dynamic framed slotted ALOHA (DFSA) is studied. The DFSA with mute tags is considered and compared with framed slotted ALOHA (FSA) with mute tags. The average used time slot, probabilities of ideal time slot, collision time slot and successful time slot are shown. The results are discussed in the conclusion.