A "Gen 2" RFID monitor based on the USRP

  • Authors:
  • Michael Buettner;David Wetherall

  • Affiliations:
  • University of Washington, Seattle, WA, USA;University of Washington and Intel Labs, Seattle, WA, USA

  • Venue:
  • ACM SIGCOMM Computer Communication Review
  • Year:
  • 2010

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Abstract

We have developed a low cost software radio based platform for monitoring EPC Gen 2 RFID traffic. The Gen 2 standard allows for a range of PHY layer configurations and does not specify exactly how to compose protocol messages to inventory tags. This has made it difficult to know how well the standard works, and how it is implemented in practice. Our platform provides much needed visibility into Gen 2 systems by capturing reader transmissions using the USRP2 and decoding them in real-time using software we have developed and released to the public. In essence, our platform delivers much of the functionality of expensive (