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Radio Frequency Identification enables automatic identification of objects with least human involvement. Chipless RFID is the low-cost alternative of conventional chip based system. In many application multiple tags collide with each other making the reading and identification challenging for the reader. It also degrades the reading reliability of the system. Therefore identifying tag-tag collision...
This paper proposes an efficient collision detection method in Chipless RFID system. In the proposed method the chipless tags are interrogated by a frequency sweep signal whose frequency varies linearly with time. The tag collision is identified by analysing the down converted Intermediate Frequency (IF) signal. The number of collided tags is also identified through this method. The simulation result...
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