Reader collision avoidance mechanism in ubiquitous sensor and RFID networks

  • Authors:
  • Sungjun Kim;Sangbin Lee;Sunshin An

  • Affiliations:
  • Korea University;Korea University;Korea University

  • Venue:
  • WiNTECH '06 Proceedings of the 1st international workshop on Wireless network testbeds, experimental evaluation & characterization
  • Year:
  • 2006

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Abstract

The RFID reader collision problem[4] occurs when a signal from one reader interferes with the signal from other readers. In this paper, we propose a RCF(Reader Collision Free) protocol, a protocol to reduce these reader collisions in the RFID systems. The operation of the RCF protocol is based on RTC/CTS mechanism in IEEE 802.15.4 sensor networks. We verify the proposed RCF protocol using experiment in RFID sensor network.