Title :
Collision-Resistant Transmission Scheme for Active RFID Systems
Author_Institution :
Warsaw Univ. of Technol., Warsaw
Abstract :
The main problem of RFID systems are the collisions in a radio channel, caused by sharing the common radio resources by all tags. This issue is even more important in systems with active transmitter-only tags, since they use simplex communication channel and the feedback information for transmission arbitration is not available. In this paper we propose a new DS-CDMA based transmission scheme, dedicated for transmitter-only tags. The proposed method has been verified via computer simulations that show a substantial improvement in tag recognition rate when compared to a classical Manchester-coded ALOHA transmission scheme.
Keywords :
code division multiple access; radio transmitters; radiofrequency identification; spread spectrum communication; wireless channels; DS-CDMA based transmission; active RFID systems; collision-resistant transmission scheme; communication channel; feedback information; radio channel; radio resources; tag recognition rate; transmission arbitration; transmitter-only tags; Active RFID tags; Asset management; Batteries; Intrusion detection; Multiaccess communication; RFID tags; Radiofrequency identification; Receivers; Resource management; Transponders; DS-CDMA; RFID; anti-collision; transmitter-only tag;
Conference_Titel :
EUROCON, 2007. The International Conference on "Computer as a Tool"
Conference_Location :
Warsaw
Print_ISBN :
978-1-4244-0813-9
Electronic_ISBN :
978-1-4244-0813-9
DOI :
10.1109/EURCON.2007.4400317
