TY - GEN
T1 - Performance improvement of generation-2 RFID protocol
AU - Wang, Chonggang
AU - Daneshmand, Mahmoud
AU - Sohraby, Kazem
AU - Li, Bo
N1 - Publisher Copyright:
© Copyright 2008 ICST.
PY - 2008
Y1 - 2008
N2 - Radio frequency identification (RFID) provides a non-lineof- sight and contactless approach for object identification. But if there are multiple tags in the range of an RFID reader, tag collision can take place due to radio signal interference and therefore an anti-collision algorithm is required to resolve collisions. Recently, EPCglobal RFID generation-2 (Gen-2) protocol [1] is proposed for ultrahigh frequency (UHF) passive tags and is being deployed. Gen-2 designs a slotted random anti-collision algorithm, especially, an adaptive slot-counter (Q) selection algorithm. The integer-valued parameter Q in Gen-2 plays a critical role in tag collision resolution. This adaptive algorithm dynamically adjusts the value of Q based on the type of replies from tags. In this paper, we propose an optimal Q algorithm that determines the optimal values of Q according to the number of remaining tags and in turn to optimize tag identification speed (TIS). It's been demonstrated through extensive simulations that the proposed algorithm achieves higher TIS than Gen-2 adaptive Q algorithm.
AB - Radio frequency identification (RFID) provides a non-lineof- sight and contactless approach for object identification. But if there are multiple tags in the range of an RFID reader, tag collision can take place due to radio signal interference and therefore an anti-collision algorithm is required to resolve collisions. Recently, EPCglobal RFID generation-2 (Gen-2) protocol [1] is proposed for ultrahigh frequency (UHF) passive tags and is being deployed. Gen-2 designs a slotted random anti-collision algorithm, especially, an adaptive slot-counter (Q) selection algorithm. The integer-valued parameter Q in Gen-2 plays a critical role in tag collision resolution. This adaptive algorithm dynamically adjusts the value of Q based on the type of replies from tags. In this paper, we propose an optimal Q algorithm that determines the optimal values of Q according to the number of remaining tags and in turn to optimize tag identification speed (TIS). It's been demonstrated through extensive simulations that the proposed algorithm achieves higher TIS than Gen-2 adaptive Q algorithm.
KW - Air interface
KW - Generation-2 RFID
KW - Performance analysis
KW - Radio frequency identification
KW - Tag identification speed
UR - http://www.scopus.com/inward/record.url?scp=84911191999&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84911191999&partnerID=8YFLogxK
U2 - 10.4108/ICST.QSHINE2008.3926
DO - 10.4108/ICST.QSHINE2008.3926
M3 - Conference contribution
AN - SCOPUS:84911191999
T3 - QShine 2008 - 5th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness
BT - QShine 2008 - 5th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness
A2 - Cao, Jiannong
A2 - Ni, Lionel
T2 - 5th International ICST Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2008
Y2 - 28 July 2008 through 31 July 2008
ER -