TY - JOUR
T1 - Hybrid blocking algorithm for identification of overlapping staying tags between multiple neighboring readers in RFID systems
AU - Hu, Yu Min
AU - Chang, Iang Chong
AU - Li, Jung Shian
N1 - Publisher Copyright:
© 2001-2012 IEEE.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - Many algorithms have been proposed for avoiding tag collisions in radio-frequency identification (RFID) systems. However, most of these algorithms consider only a single reader in the current frame. Real-world Radio Frequency Identification systems typically contain multiple readers, and the interrogation zones of neighboring readers often overlap. This situation damages the performance of algorithms considering staying tags and each reader will ignore the overlapping staying tags due to counter states reset by other readers in the next frame. As a result, the efficiency of the tag identification process in the intersection region is seriously degraded. Accordingly, this paper analyzes the performance of three existing binary tree-based anticollision algorithms in detecting overlapping staying tags and then proposes a new hybrid blocking algorithm (HBA) to alleviate the overlapping staying tag problem. The simulation results show that the proposed HBA scheme provides a better identification performance than existing schemes, particularly, in dense RFID systems.
AB - Many algorithms have been proposed for avoiding tag collisions in radio-frequency identification (RFID) systems. However, most of these algorithms consider only a single reader in the current frame. Real-world Radio Frequency Identification systems typically contain multiple readers, and the interrogation zones of neighboring readers often overlap. This situation damages the performance of algorithms considering staying tags and each reader will ignore the overlapping staying tags due to counter states reset by other readers in the next frame. As a result, the efficiency of the tag identification process in the intersection region is seriously degraded. Accordingly, this paper analyzes the performance of three existing binary tree-based anticollision algorithms in detecting overlapping staying tags and then proposes a new hybrid blocking algorithm (HBA) to alleviate the overlapping staying tag problem. The simulation results show that the proposed HBA scheme provides a better identification performance than existing schemes, particularly, in dense RFID systems.
UR - http://www.scopus.com/inward/record.url?scp=84930504224&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84930504224&partnerID=8YFLogxK
U2 - 10.1109/JSEN.2015.2412135
DO - 10.1109/JSEN.2015.2412135
M3 - Article
AN - SCOPUS:84930504224
SN - 1530-437X
VL - 15
SP - 4076
EP - 4085
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 7
M1 - 7059224
ER -