| 增强型自适应时隙数防碰撞算法研究 |
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| 引用本文： | 张学军,田侃,王锁萍.增强型自适应时隙数防碰撞算法研究[J].南京邮电大学学报(自然科学版),2012,32(1):59-65,108. |
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| 作者姓名： | 张学军 田侃 王锁萍 |
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| 作者单位： | 1. 南京邮电大学电子科学与工程学院,江苏南京,210046
2. 南京邮电大学自动化学院,江苏南京,210046 |
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| 基金项目： | 国家自然科学基金，江苏省高校自然科学基金，华为高校科技基金 |
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| 摘 要： | 标签碰撞是射频识别系统的关键问题,它增加了系统的时间开销和无源标签的能量消耗,降低了识别速率。结合自适应时隙数防碰撞算法和二进制树算法,提出了一种新型的防碰撞算法——增强型自适应时隙数算法。该算法首先运用改进型的自适应时隙数算法,依据碰撞时隙迅速把标签分成若干组,再根据保存在队列中的碰撞时隙应用二进制树算法快速识别标签。性能分析和仿真结果显示,该算法在识别效率和吞吐率上都有很大的改善。
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| 关 键 词： | 射频识别技术 防碰撞算法 增强型自适应时隙数算法 |
An Enhanced Adaptive Slot-count Anti-collision Algorithm in RFID System |
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| ZHANG Xue-jun
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TIAN Kan
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WANG Suo-ping.An Enhanced Adaptive Slot-count Anti-collision Algorithm in RFID System[J].Journal of Nanjing University of Posts and Telecommunications,2012,32(1):59-65,108. |
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| Authors: | ZHANG Xue-jun TIAN Kan WANG Suo-ping |
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| Affiliation: | 1.College of Electronic Science and Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210046,China 2.College of Automation,Nanjing University of Posts and Telecommunications,Nanjing 210046,China) |
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| Abstract: | RFID tags collision is the key problems in the RFID system,which increases the time overhead and energy consumption of passive tags,reducing the recognition rate.Based on the Q algorithm and Binary-Tree Algorithm,we propose a novel hybrid algorithm-Enhanced Adaptive Slot-count anti-collision algorithm.It divides the tag into many time slots quickly through improved Q algorithm,and then it identifies tags rapidly with Binary-tree algorithm according to the collision slots which stored in the queue.Analysis of performance and the results of simulation show that the proposed algorithm has greatly improved the identification efficiency and the throughput. |
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| Keywords: | Radio Frequency Identification(RFID) technique anti-collision algorithm enhanced adaptive slot-count anti-collision algorithm |
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