An Enhanced Dynamic Framed Slotted ALOHA Algorithm for RFID Tag Identification
MOBIQUITOUS '05 Proceedings of the The Second Annual International Conference on Mobile and Ubiquitous Systems: Networking and Services
Comparison of Transmission Schemes for Framed ALOHA based RFID Protocols
SAINT-W '06 Proceedings of the International Symposium on Applications on Internet Workshops
Lookup algorithm for adapting frame size in DFSA of passive UHF-GEN2 RFID
TELE-INFO'10 Proceedings of the 9th WSEAS international conference on Telecommunications and informatics
Linear model of adapting frame size in DFSA of passive GEN2 RFID systems
WSEAS TRANSACTIONS on COMMUNICATIONS
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Passive RFID tags, which have no self-battery and just backscatter the energy from a reader, share a common channel. It causes a tag-to-tag collision problem when at least two or more tags communicate to the reader simultaneously. The dynamic frame slotted Aloha (DFS-Aloha) protocol is one of the well-known anti-collision algorithms to solve this problem. To maximize the system performance and enhance the reading speed of Aloha protocols, we propose a frame-size estimator which is a modified version of Q-algorithm. To maximize the system performance, the maximum system efficiency value is used by mathematical model of DFS-Aloha. Simulation results show that the proposed estimation algorithm enhances the system performance. The proposed estimation algorithm takes less identification time than DFS-Aloha with the existing Q-Algorithm based on EPC Class 1 Generation 2 protocol.