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| 基于动态位隙分组盲分离的UHF RFID防碰撞算法 | |
| 引用本文： | 栗 华,贾智平,王洪君,刘 琚.基于动态位隙分组盲分离的UHF RFID防碰撞算法[J].通信学报,2012(4):47-53. |
| 作者姓名： | 栗 华 贾智平 王洪君 刘 琚 |
| 作者单位： | 1. 山东大学计算机科学与技术学院,山东济南250100 2. 山东大学信息科学与工程学院,山东济南250100 3. 西安电子科技大学综合业务网理论及关键技术国家重点实验室,陕西西安710071 |
| 基金项目： | 教育部科技创新工程重大项目培育基金资金项目(708059);山东省科技攻关基金资助项目(2009GG10001007);西安电子科技大学综合业务网国家重点实验室开放基金资助项目(ISN12-10)~~ |
| 摘 要： | 提出一种基于独立成分分析(ICA)和位隙动态分组技术的超高频(UHF)射频识别(RFID)多标签防碰撞算法。利用ICA算法实现多目标的同时识别,利用动态位隙标签分组保证阅读器同时读取的标签数少于或等于其天线数,从而使ICA工作于非欠定状态。理论分析和实验结果表明,该算法的标签识别率远高于传统随机或确定性TDMA RFID防碰撞算法的标签识别率。 |
| 关 键 词： | RFID防碰撞 多天线系统 盲源分离 位隙分组 |
UHF RFID anti-collision algorithm based on blind separation and dynamic bit-slot grouping |
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| LI Hua,JIA Zhi-ping,WANG Hong-jun,LIU Ju.UHF RFID anti-collision algorithm based on blind separation and dynamic bit-slot grouping[J].Journal on Communications,2012(4):47-53. | |
| Authors: | LI Hua JIA Zhi-ping WANG Hong-jun LIU Ju |
| Affiliation: | 2,3(1.School of Computer Science and Technology,Shandong University,Ji’nan 250100,China;2.School of Information Science and Engineering,Shandong University,Ji’nan 250100,China;3.The State Key Laboratory of Integrated Services Networks,Xidian University,Xi’an 710071,China) |
| Abstract: | A novel ultra high frequency(UHF) radio frequency identification(RFID)anti-collision algorithm based on independent components analysis(ICA) and dynamic bit-slot grouping technology was proposed.The ICA algorithm was used for identifying several tags simultaneously.The dynamic bit-slot tags grouping technology was used for ensuring the number of tags read by a reader at the same time was less than or equal to its antennas’ number,and enabling the ICA wouldn’t work in an underdetermined state.Theoretical analysis and simulated experimental results show that the tags identification rate of the proposed algorithm is far more than that of traditional stochastic or deterministic TDMA RFID anti-collision algorithms. |
| Keywords: | RFID anti-collision multi-antenna system blind sources separation bit-slot grouping |
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