Abstract

Radio Frequency IDentification (RFID)., one of key technologies of the Internet of Things (IoT), enables us sense and identify an object automatically via the wireless communication between a reader and tags. Recently., the chipless tag (without silicon chip)becomes an active research topic due to its merit of low cost. This paper proposes a chipless RFID tag anti-collision algorithm based on the optimal window fractional Fourier transform., especially for multiple chipless tag scenarios. By using the artificial immune optimization algorithm., the optimal window function can be calculated by the proposed algorithm and the collision signal can be finally separated by the optimal window function. Simulation results indicate that the proposed optimal window FRFT -based chipless anti-collision algorithm is effective and efficient.

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