Thresholds for the Identification of Commercial Wireless SAW ID-Tags

Author

Cerda-Villafana, Gustavo ; Shmaliy, Yuriy S.

Author_Institution

Electron. Dept., Guanajuato Univ., Salamanca, Mexico

fYear

2010

fDate

18-25 July 2010

Firstpage

226

Lastpage

231

Abstract

Passive Surface Acoustic Wave (SAW) sensors intended to measure different physical quantities are often manufactured to have Radio Frequency Identification (RFID) tags with time position encoding. The optimum threshold is proposed for the identification of commercial SAW ID-tags. We first find the generic identification error probability for such tags employing the Marcum function of first order and then minimize it in order to find the optimal threshold. The results are obtained for the ideal conditions of equal 30 dB SNR. As examples of applications, we give the estimate number of reflectors for an ID error probability lesser than 1 and 0.1% (1 slip per 100 and 1000 readings).

Keywords

error statistics; radiofrequency identification; surface acoustic wave sensors; Marcum function; RFID; commercial wireless SAW ID-tags; generic identification error probability; optimum threshold; radio frequency identification tags; surface acoustic wave sensors; time position encoding; Encoding; Error probability; Signal to noise ratio; Surface acoustic waves; Wireless communication; Wireless sensor networks; Marcum function; SAW sensor; identification tags;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor Device Technologies and Applications (SENSORDEVICES), 2010 First International Conference on

Conference_Location

Venice

Print_ISBN

978-1-4244-7474-5

Type

conf

DOI

10.1109/SENSORDEVICES.2010.49

Filename

5632181