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학술대회 Design and Implementation of Long-Range RFID Reader for Sensor Tag System
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신동범, 박형철, 이형섭, 김대영
International Conference on Consumer Electronics (ICCE) 2009, pp.1-2
08MC3300, RFID/USN용 센서 태그 및 센서 노드 기술 개발, 표철식
ISO/IEC 24753 defines new modem specifications for long-range RFID communications and application protocol for sensor tag system. According to the ISO/IEC 24753, the frequency offset of the tag is 4%. In this paper, we designed a non-coherent receiver structure to solve the frequency offset problem. A frequency estimation block was designed to mitigate the effects of 4% frequency offset and a start frame delimiter (SFD) detection algorithm was proposed to determine the start position of the payload. We implemented a long-range RFID reader with the proposed methods and evaluated its performance in a wired network. The implemented long-range RFID reader showed more superior performance than the commercial RFID reader. ©2009 IEEE.
KSP 제안 키워드
Application protocol, Detection algorithm, Frequency Estimation, Long-range, Non-coherent receiver, RFID communications, RFID reader, Receiver Structure, Sensor Tag, design and implementation, frequency offset