Measuring the Interference at an RFID Tag: Where Does It Have an Impact?

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Abstract

In this paper we consider reader collisions in an RFID system, especially how interference impacts the ability of a passive UHF tag to respond. We propose two innovative applications for using interference: 1) Blocking a tag response, and 2) cooperative reading of a tag. In order to investigate their applicability we focus on the experimental evaluation, where we impose interference on the download and uplink, respectively, and on both links simultaneously. The results are positive with respect to blocking the tag, where modulated Co-Channel Interference shows most effective. Based on the measurements it is however not possible to read a tag cooperatively, i.e. the tag is unable to utilize the interference as an additional energy source.
Original languageEnglish
Title of host publicationIEEE International Conference on RFID-Technologies and Applications (RFID-TA)
Number of pages8
PublisherIEEE
Publication date16 Sept 2011
Pages264-271
ISBN (Print)978-1-4577-0028-6
DOIs
Publication statusPublished - 16 Sept 2011
EventIEEE International Conference on RFID-Technologies and Applications - Sitges, Spain
Duration: 15 Sept 201116 Sept 2011
Conference number: 2

Conference

ConferenceIEEE International Conference on RFID-Technologies and Applications
Number2
Country/TerritorySpain
CitySitges
Period15/09/201116/09/2011

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