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An Active Backscatter Wake-up and Tag Identification Extraction Protocol for Low Cost and Low Power Active RFID

Björn Nilsson ; Lars Bengtsson (Institutionen för data- och informationsteknik, Datorteknik (Chalmers)) ; Bertil Svensson ; Urban Bilstrup ; Per-Arne Wiberg
Proceedings of 2010 IEEE Conference on RFID-Technology and Applications, 17-19 Juni, Guangzhou, China p. 86-91. (2010)
[Konferensbidrag, refereegranskat]

In this paper we present a Radio Frequency Identification (RFID) protocol used to wake up and extract the ID of every tag (or a subset thereof) within reach of a reader in an active backscatter RFID system. We also study the effect on tag energy cost and read-out delay incurred when using the protocol, which is based on a frequency binary tree. Simulations show that, when using the 2.45 GHz ISM band, more than 1500 tags can be read per second.With a population of 1000 tags, the average read-out delay is 319 ms, and the expected lifetime of the RFID tags is estimated to be more than 2.5 years, even in a scenario when they are read out very often.



Denna post skapades 2010-06-21. Senast ändrad 2010-09-28.
CPL Pubid: 123091

 

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Institutioner (Chalmers)

Institutionen för data- och informationsteknik, Datorteknik (Chalmers)

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur