TagID generation and detection of Chipless RFID system

Authors:Nemai C. Karmakar, Sika Shrestha, Meriam A. Bibile

Source: FERMAT, Volume 21, Article 3, May-Jun., 2017

Abstract: The cost and non-planar structure of the existing chipped RFID system make them incomparable with the cheaper barcode identification system. In the last few years, several novel contributions to research on chipless RFID system are done making them a potential candidate to replace barcodes. The ID generation in the chipless tag is completely different fromthe chipped tag and this paper analyses the various methods of producing tag ID in absence of chip. The data capacity is the crucial part of any identification system and effective ways of increasing data capacity using multiple dimension are explored in this paper. Also, printing technology and parameters affecting printed tags are inspected. The next challenging phase of the chipless RFID system is the reading and decoding of the tag ID. The reader system consists of an RF section and a digital section. In this paper, the detection algorithms used in the digital section discourses. This study explores through the important phases of a chipless RFID system which still needs development and the findings can be incorporated to improve the reliability of the chipless RFID system to make this technology suitable for commercial applications.

Index Terms: Chipless RFID, printed tag, Hilbert transform (HT), Signal space representation (SSR), Matrix pencil method (MPM), Continuous wavelet transform (CWT), Maximum likelihood (ML), Moving average filtering

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TagID generation and detection of Chipless RFID system