DocumentCode :
1753425
Title :
A hierarchical structure based reader anti-collision protocol for dense RFID reader networks
Author :
Kang, Youngchang ; Kim, Minjae ; Lee, Hyuckjae
Author_Institution :
Dept. of Electr. Eng., KAIST, Daejeon, South Korea
fYear :
2011
fDate :
13-16 Feb. 2011
Firstpage :
164
Lastpage :
167
Abstract :
Recently, RFID systems have been widely applied in many applications. And as many RFID readers are being deployed increasingly, an incorrect operation due to reader collisions deteriorates the quality of systems. Especially, as the number of channels relatively to the number of readers becomes scarce, the dense reader environment needs to be newly considered. In this paper, we present a hierarchical structure based reader anti-collision protocol for dense RFID reader networks. In this protocol, a reader should transmit pre-pulse and post-pulse to adjacent readers and make readers´ hierarchy. By using the hierarchical structure, many readers efficiently can share the same channel for spectrum efficiency when the number of channels is insufficient. Moreover, the time coordination scheme among the adjacent readers and the frequency division scheme among the reader groups are used in order to avoid reader collisions. Consequently, reader collisions can be mitigated and the rate of channel occupancy is enhanced. Simulation results show that our proposed protocol has significantly better performance than the existing protocols.
Keywords :
protocols; radiofrequency identification; channel occupancy rate; dense RFID reader networks; frequency division scheme; hierarchical structure based reader anticollision protocol; reader collisions; spectrum efficiency; time coordination scheme; Biological system modeling; Lattices; Mathematical model; Protocols; Radiofrequency identification; Telecommunication standards; Throughput; Anti-collision protocol; Dense RFID reader; RFID; Reader collision; Reader hierarchy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Advanced Communication Technology (ICACT), 2011 13th International Conference on
Conference_Location :
Seoul
ISSN :
1738-9445
Print_ISBN :
978-1-4244-8830-8
Type :
conf
Filename :
5745769
Link To Document :
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