| 基于最优化原理的RFID系统中的ALOHA防碰撞算法研究 |
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| 引用本文： | 谢胜眉,赵军辉.基于最优化原理的RFID系统中的ALOHA防碰撞算法研究[J].电路与系统学报,2009,14(4). |
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| 作者姓名： | 谢胜眉 赵军辉 |
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| 作者单位： | 澳门科技大学,资讯科技学院,中国澳门特别行政区 |
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| 基金项目： | 澳门科学技术发展基金资助项目 |
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| 摘 要： | 无线射频识别(RFID)系统中的多个标签同时应答时会引起数据碰撞现象,使阅读器能正确读取信息所使用算法称为防碰撞算法.本文研究了目前RFID系统中常用的防碰撞算法,包括时隙ALOHA(S-ALOHA),纯ALOHA(P-ALOHA)和帧ALOHA(F-ALOHA),同时基于最优化原理对ALOHA防碰撞算法进行了改进.仿真结果表明采用最优化原理改进的ALOHA算法相比较现有RFID系统中常用的ALOHA防碰撞算法有明显的优越性,使得系统获得最佳的传输时隙及数据包大小,得到高吞吐率,低错误率,从而提高系统的工作效率.
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| 关 键 词： | 无线射频识别 最优化算法 ALOHA协议 防碰撞算法 |
Study on the ALOHA anti-collision algorithm based on optimized theory for RFID system |
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| XIE Sheng-mei,ZHAO Jun-hui.Study on the ALOHA anti-collision algorithm based on optimized theory for RFID system[J].Journal of Circuits and Systems,2009,14(4). |
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| Authors: | XIE Sheng-mei ZHAO Jun-hui |
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| Affiliation: | XIE Sheng-mei,ZHAO Jun-hui(Faculty of Information Technology,Macao University of Science , Technology,Macao,China) |
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| Abstract: | The Reader collision problem occurs when the signal received from different tag at the same time.Anti-collision algorithm can be adopted to eliminate data collision.The common anti-collision algorithm is studied in this paper such as P-ALOHA,F-ALOHA and S-ALOHA,a novel anti-collision based on optimization theory(O-ALOHA) is also proposed.The simulation results illustrate that ALOHA anti-collision algorithm based on optimization theory can get apparent advantage.The performance of the RFID system can be impr... |
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| Keywords: | RFID ALOHA anti-collision algorithm optimized theory |
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