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EPCglobal Gen2 for passive RFID system uses probabilistic slotted ALOHA with Q algorithm, which is a kind of dynamic framed slotted ALOHA (DFSA), as the tag anti-collision algorithm. In this paper, we analyze the performance of Q algorithm used in Gen2 and compare the tag estimation methods for DFSA. We also propose a new hybrid anti-collision Q algorithm, which combines the conventional Q algorithm...
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