Interference Analysis of UHF RFID Systems

In this paper, RFID reader-to-reader interference is analyzed from the point of view of interrogation range. To evaluate RFID interference quantitatively, the new figure-of-merit, interrogation range reduction ratio (IRRR), is defined. In order to show the usefulness of IRRR, its value is calculated in various environments. Additionally, the calculated IRRR values are verified by measurements using two RFID readers and an RFID tag. IRRR can be referred to an important design parameter to analyze more complex interfering problems in instances of actual RFID system deployment.

[1]  Daniel W. Engels,et al.  The reader collision problem , 2002, IEEE International Conference on Systems, Man and Cybernetics.

[2]  Klaus Finkenzeller,et al.  Book Reviews: RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification, 2nd ed. , 2004, ACM Queue.

[3]  Feng Zhou,et al.  Evaluating and optimizing power consumption of anti-collision protocols for applications in RFID systems , 2004, Proceedings of the 2004 International Symposium on Low Power Electronics and Design (IEEE Cat. No.04TH8758).

[4]  N. Blaunstein,et al.  PREDICTION OF PROPAGATION CHARACTERISTICS IN INDOOR RADIO COMMUNICATION ENVIRONMENTS , 2006 .

[5]  Peter H. Cole,et al.  Synchronization of RFID readers for dense RFID reader environments , 2006, International Symposium on Applications and the Internet Workshops (SAINTW'06).

[6]  Samuel Fosso Wamba,et al.  Enabling intelligent B-to-B eCommerce supply chain management using RFID and the EPC network: a case study in the retail industry , 2006, ICEC '06.

[7]  Ygal Bendavid,et al.  Proof of concept of an RFID-enabled supply chain in a B2B e-commerce environment , 2006, ICEC '06.

[8]  Lixin Ran,et al.  SIGNAL DESCRIPTIONS AND FORMULATIONS FOR LONG RANGE UHF RFID READERS , 2007 .

[9]  Fernando Las-Heras,et al.  FAST METHODS FOR EVALUATING THE ELECTRIC FIELD LEVEL IN 2D-INDOOR ENVIRONMENTS , 2007 .

[10]  Jun-Seok Park,et al.  Effects of reader interference on the RFID interrogation range , 2007, 2007 European Microwave Conference.