Title :
An active backscatter wake-up and tag identification extraction protocol for low cost and low power active RFID
Author :
Nilsson, B. ; Bengtsson, L. ; Svensson, B. ; Bilstrup, U. ; Wiberg, P.A.
Author_Institution :
CERES, Halmstad Univ., Halmstad, Sweden
Abstract :
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.
Keywords :
Active RFID tags; Backscatter; Binary trees; Costs; Delay effects; Delay estimation; Frequency; Protocols; RFID tags; Radiofrequency identification;
Conference_Titel :
RFID-Technology and Applications (RFID-TA), 2010 IEEE International Conference on
Conference_Location :
Guangzhou, China
Print_ISBN :
978-1-4244-6698-6
DOI :
10.1109/RFID-TA.2010.5529866