Title :
Pulse Detection Based Anti-Collision Protocol for Passive RFID System
Author :
Wang, Hong Gang ; Pei, Chang Xing ; Zheng, Feng
Author_Institution :
State Key Lab. of Integrated Services Networks, Xidian Univ., Xi´´an, China
Abstract :
Accurate tag collision estimation is very important for ALOHA-based anti-collision protocol for passive RFID system. In this paper, a method of pulse detection is proposed to detect the collision and estimate the population of tags accurately by slightly modifying the frame structure in ISO 18000-6 type C specification. And then improved slotted ALOHA-based anti-collision protocol based on pulse detection is proposed. In our protocol, a re-query process may be introduced after reader receiving the replies of tags at the end of one slot to access the collision tags quickly. Simulations results show the proposed protocol achieves a system throughput of 0.48. It is an improvement compared with the performance of existing ALOHA-based protocol, and it is simple and low cost for implementation.
Keywords :
access protocols; radiofrequency identification; signal detection; ALOHA-based anti-collision protocol; ISO 18000-6 type C specification; passive RFID system; pulse detection; tag collision estimation; Access protocols; Delay; IEC standards; ISO standards; Intserv networks; Laboratories; Passive RFID tags; Radiofrequency identification; State estimation; Throughput;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5303527
