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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Angerer, C. Maier, G. Bueno Delgado, M.V. Rupp, M. Alonso, J.V. |
| Copyright Year | 2010 |
| Description | Author affiliation: Institute of Communications and Radio-Frequency Engineering, Vienna University of Technology, Austria (Angerer, C.; Maier, G.; Rupp, M.) || Information Technologies and Communications Department, Technical University of Cartagena (Bueno Delgado, M.V.; Alonso, J.V.) |
| Abstract | Radio Frequency Identification (RFID) systems often are operated in environments with multiple RFID tags. In such an environment, a conventional RFID system resolves collisions of multiple tags on the medium access control layer, discarding the signals of the physical layer. This paper proposes a zero-forcing and an interference cancellation receiver architecture for an RFID reader, to recover from collisions of two tags on a physical layer and identify tags successfully even in case of a collision. The expected throughput increase is approximately 1.6 times the throughput of a conventional reader. We explore the signal properties of collisions and propose a model for the physical layer. Moreover, we present a method for estimating the signal constellation states in a collision. The entire structure, including channel estimation and both of the proposed receivers are verified with data generated during a measurement. Additionally, performance simulations of the two structures with different channels are shown. |
| Starting Page | 1406 |
| Ending Page | 1411 |
| File Size | 367212 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424456956 |
| e-ISBN | 9781424456970 |
| e-ISBN | 9781424456963 |
| DOI | 10.1109/ICIT.2010.5472504 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-03-14 |
| Publisher Place | Chile |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Receiving antennas Physical layer Radiofrequency identification Receivers Throughput RFID tags Signal resolution Media Access Protocol Interference cancellation State estimation |
| Content Type | Text |
| Resource Type | Article |
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