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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jiho Ryu Hojin Lee Yongho Seok Taekyoung Kwon Yanghee Choi |
| Copyright Year | 2007 |
| Description | Author affiliation: Seoul Nat. Univ., Seoul (Jiho Ryu; Hojin Lee; Yongho Seok; Taekyoung Kwon; Yanghee Choi) |
| Abstract | In this paper, we propose a hybrid query tree protocol that combines a tree based query protocol with a slotted backoff mechanism. The proposed protocol decreases the average identification delay by reducing collisions and idle time. To reduce collisions, we use a 4-ary query tree instead of a binary query tree. To reduce idle time, we introduce a slotted backoff mechanism to reduce the number of unnecessary query commands. For static scenarios of tags, we extended the proposed protocol by adopting two phases. First, in leaf query phase for existing tags, the interrogator queries leaf-nodes directly to reuse query strings in the previous session. Second, in root query phase for new arriving tags, the interrogator starts the query process from the roof-node. Simulation reveals that the proposed protocol achieves lower identification delay than existing tag collision arbitration protocols regardless of whether tags are mobile or not. |
| Starting Page | 5981 |
| Ending Page | 5986 |
| File Size | 240396 |
| Page Count | 6 |
| File Format | |
| ISBN | 1424403537 |
| DOI | 10.1109/ICC.2007.991 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-06-24 |
| Publisher Place | UK |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Protocols Radiofrequency identification Query processing Costs Intrusion detection Communications Society Computer science Delay effects RFID tags Passive RFID tags |
| Content Type | Text |
| Resource Type | Article |
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