首页 | 本学科首页   官方微博 | 高级检索  
     检索      

中国频率规范下RFID防碰撞算法性能分析
引用本文:王中祥,谈熙,刘丹,王俊宇,闵昊.中国频率规范下RFID防碰撞算法性能分析[J].复旦学报(自然科学版),2008,47(6).
作者姓名:王中祥  谈熙  刘丹  王俊宇  闵昊
作者单位:复旦大学,专用集成电路与系统国家重点实验室,上海201203
基金项目:国家高技术研究发展计划(863计划) 
摘    要:在射频识别(RFID)系统中,频率规范决定了通信数据率,通信数据率是决定多目标识别性能的重要因素之一.根据我国最新发布的超高频RFID频率规范,通过对信号的频谱仿真分别确定了单读写器环境下,以及标签信号邻道返回时的密集读写器环境下,RFID系统的最大通信数据率,在此通信数据率下对各种符合ISO18000-6C协议的多标签防碰撞算法进行了仿真,结果表明,在不考虑算法在时间和硬件资源上的开销后,Vogt算法在识别超过300个标签时,识别速度(平均每秒识别标签的数量)最高;单读写器环境下最高识别速度约1050个/s,密集读写器环境下邻道返回时的最高识别速度约270个/s.

关 键 词:射频识别  防碰撞  频率规范  时隙ALOHA

Analysis of Anticollision Algorithm in RFID System under Channel Regulations of China
WANG Zhong-xiang,TAN Xi,LIU Dan,WANG Jun-yu,MIN Hao.Analysis of Anticollision Algorithm in RFID System under Channel Regulations of China[J].Journal of Fudan University(Natural Science),2008,47(6).
Authors:WANG Zhong-xiang  TAN Xi  LIU Dan  WANG Jun-yu  MIN Hao
Abstract:In RFID system,the rate of data transmission is one of the main factors that affect the performance of multi-access identification,and is determined by channel regulation.Complying with channel regulations of China in both single-reader environment and dense-reader environment with adjacent-channel backscatter,the maximum rate of data transmission of RFID system are presented through modulated signal simulation.Then several anti-collision algorithms compliant with ISO 18000-6C protocol under the maximum rate of data transmission of China channel regulation are simulated and compared.If the cost of time and hardware resource is ignored,the simulation results indicate that Vogt has the highest identification speed,it outperforms others when the tag number exceeds 300;its maximum identification speed is 1 050/s in single-reader environment,and 270/s in dense-reader environment with adjacent-channel backscatter.
Keywords:RFID  anti-collision  regulations  slotted ALOHA
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号