| RFID系统防碰撞协议研究——设计与优化 |
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| 引用本文： | 王建伟, 赵玉萍, TimoKorhonen. RFID系统防碰撞协议研究设计与优化[J]. 电子与信息学报, 2009, 31(1): 1-4. doi: 10.3724/SP.J.1146.2007.01632 |
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| 作者姓名： | 王建伟 赵玉萍 Timo Korhonen |
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| 作者单位： | 北京大学信息科学与技术学院,北京,100871;赫尔辛基理工大学通信实验室,Espoo,02150,芬兰 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，北京大学-赫尔辛基理工大学联合研究项目 |
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| 摘 要： | 碰撞问题是影响射频识别(RFID)系统读取效率的关键问题。该文提出了两种新的防碰撞协议CDCA协议和CDCA-2D协议，并且对两种协议进行了详细的理论分析和优化。新协议将RFID系统的读取过程分为两个阶段，利用第1阶段的碰撞检测信息实现在第2个阶段的无碰撞通信。仿真结果表明，和目前国际上流行的RFID防碰撞算法相比，两种新协议极大地提高了读取的效率。
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| 关 键 词： | 射频识别 防碰撞 碰撞检测 |
| 收稿时间： | 2007-10-16 |
| 修稿时间： | 2008-02-04 |
Research on Anti-collision Protocols in RFID SystemsDesign and Optimization |
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| Wang Jian-wei, Zhao Yu-ping, Timo Korhonen. Research on Anti-collision Protocols in RFID SystemsDesign and Optimization[J]. Journal of Electronics & Information Technology, 2009, 31(1): 1-4. doi: 10.3724/SP.J.1146.2007.01632 |
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| Authors: | Wang Jian-wei Zhao Yu-ping Timo Korhonen |
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| Affiliation: | School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China; Communications Lab, Helsinki University of Technology, Espoo 02150, Finland |
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| Abstract: | Collision issue is a significant one which limits the reading efficiency of RFID systems. This paper presents two new anti-collision protocols - CDCA protocol and CDCA-2D protocol. Detailed theoretical analysis and optimization for the two protocols are provided in this paper. The new protocols split the reading process of RFID systems into two steps. The collision information is obtained in the first step and then applied to make the second reading step completely collision-free. The simulation results denote that the new proposed protocols highly improve the reading efficiency comparing to the current popular anti-collision algorithm. |
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| Keywords: | RFID (Radio Frequency IDentification) Anti-collision Collision detection |
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