Novel Dynamic Framed-Slotted ALOHA Using Litmus Slots in RFID Systems
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概要
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Dynamic Framed Slotted ALOHA (DFSA) is one of the most popular protocols to resolve tag collisions in RFID systems. In DFSA, it is widely known that the optimal performance is achieved when the frame size is equal to the number of tags. So, a reader dynamically adjusts the next frame size according to the current number of tags. Thus it is important to estimate the number of tags exactly. In this paper, we propose a novel tag estimation and identification method using litmus (test) slots for DFSA. We compare the performance of the proposed method with those of existing methods by analysis. We conduct simulations and show that our scheme improves the speed of tag identification.
著者
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Lee Tae-jin
School Of Electrical And Computer Engineering Sungkyunkwan University
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Yim Soon-bin
School Of Information And Communication Engineering Sungkyunkwan University
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PARK Jongho
School of Information and Communication Engineering, Sungkyunkwan University
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YIM Soon-Bin
School of Information and Communication Engineering, Sungkyunkwan University
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