捕获效应下基于反馈机制的RFID防碰撞算法  

RFID anti-collision algorithm coping with capture effect based on feedback mechanism

作　　者：韦冬雪[1] 郑嘉利[1] 黄庆欢[1] 

机构地区：[1]广西大学计算机与电子信息学院,南宁530004

出　　处：《计算机工程与应用》2015年第17期70-75,共6页Computer Engineering and Applications

基　　金：国家自然科学基金(No.61261023);广西自然科学基金面上项目(No.2011GXNSFA018169);广西自然科学基金青年项目(No.2012GXNSFBA053160);广西科学研究与技术开发计划课题(No.12118017-9A)

摘　　要：提出一种捕获效应下基于反馈机制的RFID防碰撞算法(CEFB)。算法分三个阶段:标签分组阶段、组内分维识别阶段和反馈识别阶段。CEFB有效解决识别初期标签之间产生过多碰撞问题,通过对标签进行分维识别,加快对碰撞节点的处理,提高识别速度。同时,CEFB避免因捕获效应和信道干扰等因素影响,存在标签漏读的情况,提高标签识别率。理论分析和仿真结果表明,CEFB的性能优于其他常用的标签防碰撞算法。It proposes a RFID anti-collision algorithm coping with capture effect which is based on feedback mechanism（CEFB）. CEFB is divided into three phases：the packet phase, the fractal dimension identification phase and the feedback recognition phase. CEFB can solve the problem of excessive collisions effectively at the early stage of recognition. Adopting the fractal dimension identification algorithm, CEFB can speed up the processing of the collision node and develop reading speed. Meanwhile, CEFB can avoid tags misreading influenced by the capture effect and channel interference. Theoretical analysis and simulation results show that CEFB significantly outperforms other existing anti-collision algorithms.

关 键 词：无线射频识别(RFID) 防碰撞 捕获效应 反馈 

分 类 号：TN91[电子电信—通信与信息系统]