时隙ALOHA法在RFID系统防碰撞问题中的应用

Journal of Applied Sciences ›› 2005, Vol. 23 ›› Issue (5): 489-492.

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Application of Slotted ALOHA to Anti-collision of RFID System

HU Jian-yun, LI Qiang, MIN Hao

State Key Laboratory of ASIC and System, Fudan University, Shanghai 200433, China

Received:2004-06-25 Revised:2004-09-09 Online:2005-09-30 Published:2005-09-30

Abstract

Abstract: Slotted ALOHA is a commonly used protocol in anti-collision of RFID system.Having analyzed RFID system's identification process, Markov chain is introduced to model the slotted ALOHA.The model is used to analyze performance of the slotted ALOHA, and find the relationship between success probability and number of slots and tags in the RFID system, providing a guide for practical applications.

Key words: RFID, anti-collision, Markov chain, slotted ALOHA

CLC Number:

TN45

HU Jian-yun, LI Qiang, MIN Hao. Application of Slotted ALOHA to Anti-collision of RFID System[J]. Journal of Applied Sciences, 2005, 23(5): 489-492.

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Application of Slotted ALOHA to Anti-collision of RFID System

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