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Ιδρυματικό Αποθετήριο [SANDBOX]
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| URI | http://purl.tuc.gr/dl/dias/506577FD-5884-428D-A68D-FEF1DE0D6B28 | - |
| Αναγνωριστικό | https://doi.org/10.1109/TWC.2009.080834 | - |
| Γλώσσα | en | - |
| Τίτλος | Anti-collision backscatter sensor networks | en |
| Δημιουργός | Bletsas Aggelos | en |
| Δημιουργός | Μπλετσας Αγγελος | el |
| Δημιουργός | Sahalos, J.N. | en |
| Δημιουργός | Siachalou, S. | en |
| Εκδότης | Institute of Electrical and Electronics Engineers | en |
| Περίληψη | Sensor collision (interference) is studied in a large network of low bit-rate sensors that communicate via backscatter, i.e. modulate the reflection of a common carrier transmitted by a central reader. Closed-form analysis is provided, quantifying sensor collision (interference) in high-density, backscatter sensor networks (BSN), as a function of number of tags and aggregate bandwidth. Analysis is applicable to a broad class of sensor subcarrier modulations, propagation environments and reader antenna directivity patterns. It is discovered that anti-collision performance in high-density backscatter sensor networks is feasible provided that appropriate modulation is used at each sensor. That is due to the round-trip nature of backscatter communication as well as the extended target range, which both impose stringent requirements on spectrum efficiency, not easily met by all modulations. Furthermore, aggregate bandwidth savings for given anti-collision performance are quantified, when simple division techniques on subcarrier (modulating) frequency and space (via moderately directive hub antenna) are combined. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-10-05 | - |
| Ημερομηνία Δημοσίευσης | 2009 | - |
| Βιβλιογραφική Αναφορά | A. Bletsas, S. Siachalou and J.N. Sahalos, "Anti-collision Backscatter Sensor Networks", IEEE Transactions on Wireless Communications (TWC), vol. 8,no. 10, pp. 5018-5029, Oct. 2009. DOI: 10.1109/TWC.2009.080834 | en |
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