Analysis of RFID anti-collision protocols based on the standard EPCglobal Class-1 Generation-2

Conference: European Wireless 2015 - 21th European Wireless Conference
05/20/2015 - 05/22/2015 at Budapest, Hungary

Proceedings: European Wireless 2015

Pages: 6Language: englishTyp: PDF

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Arjona, Laura; Landaluce, Hugo; Perallos, Asier; Lopez-Garcia, Pedro; Cmiljanic, Nikola (Deusto Institute of Technology (DeustoTech), University of Deusto, Bilbao, Spain)

Radio Frequency Identification (RFID) technology is undergoing a remarkable development in the last few years. In this technology, identification information is exchanged between two devices: readers and tags. If two tags attempt to transmit simultaneously, a collision is produced. This phenomenon, known as the tag collision problem, is becoming increasingly important, since it leads to an increase in the reader transmitted bits and identification delay, in addition to a wastage of energy and bandwidth. In this context, protocols based on the EPCglobal Class-1 Generation-2 (EPC C1G2) standard arbitrate collisions by adjusting the transmission frame size. The standard presents an uncertainty in the selection of the frame size, since it does not specify the exact value. This has led to many different alternatives. This paper analyzes the most relevant anti-collision protocols which deal with this uncertainty, taking into account the limitations imposed by the standard EPC C1G2.