A simulation-based evaluation
shows that AQS and ABS signi?¬?cantly reduce delay and communication overhead for the
tag reading process.
Acknowledgment
This work was jointly supported by SK Telecom, the Korea Science and Engineering
Foundation (KOSEF) grant funded by the Korea government (MOST) (No. R01-2007-000-
11203-0) and the Ministry of Information and Communication (MIC), Korea under ITRC
IITA-2007-(C1090-0701-0046).
References
1. K. Finkenzeller, RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and
Identi?¬?cation, John Wiley & Sons, New York, 2003.
2. S.E. Sarma, D. Brock, and D.W. Engels, Radio frequency identi?¬?cation and the electronic product
code, IEEE Micro, 21(6), 50??“54, 2001.
3. S.E. Sarma, S.A. Weis, and D.W. Engels, RFID systems and security and privacy implications, in
Workshop on Cryptographic Hardware in Embedded Systems, LNCS 2523, pp. 454??“470, August 2002.
0
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
No. of transmitted bits
8 16 24 32 40
Identical bit
48 56 64 72 80
Binary
Query
AQS
ABS
(d)
FIGURE 8.9 (continued)
(d) Tag communication overhead.
Adaptive Tag Anticollision Protocols for RFID Passive Tags 157
4. D.W. Engels and S.E. Sarma, The reader collision problem, in Proceedings of IEEE International
Conference on System, Man and Cybernetics, Hammamet, Tunisie, October 2002.
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