Parallel Response Ternary Query Tree for RFID Tag Anti-Collision

• 作者: Ching-Nung Yang Li-Zhe Sun Song-Ruei Cai
• 来源期刊: 电脑和通信(英文)
• 学科: 工学
• 关键词: Radio Frequency Identification (RFID) Tag Collision QUERY TREE TERNARY TREE PARALLEL RESPONSE
• 年，卷（期）: 2015,（5）
• 页码范围: 72-79
• 页数: 8页
• 分类号: TP39

摘要

A tag-collision (or missed reads) in RFID system (Radio Frequency Identification) system degrades the identification efficiency. The so-called tag collision is that a reader cannot identify a tag when more than one tags respond to a reader at the same time. There are some major anti-collision protocols on resolving tag collision, e.g., ALOHA-based protocol, binary tree protocol, and Query Tree (QT) protocol. Up to date, most tag anti-collision protocols are QT protocols. QT protocols are categorized into M-ary query tree (QT). In the previous literature, choosing M = 3 (i.e., a ternary QT (TQT)) was proven to have the optimum performance for tag identification. Recently, Yeh et al. used parallel response approach to reduce the number of collisions. In this paper, we combine the partial response and TQT to propose an effective parallel response TQT (PRTQT) protocol. Simulation results reveal that our PRTQT outperforms Yeh et al.’s protocol and TQT protocol.