title: Error probability for RFID SAW tags with pulse position coding and peak-pulse detection.
abstract: This paper addresses the code reading error probability (EP) in radio-frequency identification (RFID) SAW tags with pulse position coding (PPC) and peak-pulse detection. EP is found in a most general form, assuming M groups of codes with N slots each and allowing individual SNRs in each slot. The basic case of zero signal in all off-pulses and equal signals in all on-pulses is investigated in detail. We show that if a SAW-tag with PPC is designed such that the spurious responses are attenuated by more than 20 dB below on-pulses, then EP can be achieved at the level of 10(-8) (one false read per 108 readings) with SNR >17 dB for any reasonable M and N. The tag reader range is estimated as a function of the transmitted power and EP.
authors.affiliation: Guanajuato University, Department of Electronics, Salamanca, Mexico. shmaliy@ugto.mx
authors.forename: Yuriy S
authors.initials: YS
authors.lastname: Shmaliy
authors.forename: Victor
authors.initials: V
authors.lastname: Plessky
authors.forename: Gustavo
authors.initials: G
authors.lastname: Cerda-Villafaña
authors.forename: Oscar
authors.initials: O
authors.lastname: Ibarra-Manzano