电子与封装Issue(3)：18-21,48,5.
一种改进的RFID标签防碰撞算法
An Improved Anti-collision Method for Identiifcation of RFID Tag
摘要
Abstract
In the paper, an Improved Dynamic Frame-Slotted ALOHA algorithm with Interrupt Mechanism (ⅡDFSA)was brought forward based on the previously reported ALOHA algorithms. The proposedⅡDFSA can be realized as follows. Firstly, the reference system efifciency and ratio of the collision to empty slots have been optimized and then the frame size is adjusted by comparing the system efifciency with the reference system efifciency. On the other hand, the change direction of the frame size is determined by the ratio of the collision to empty slots. Thus, the proposedⅡDFSA is helpful to effectively reduce the recognition time and improve the system efficiency. Results obtained through computer simulation indicate thatⅡDFSA algorithm can effectively decrease the total recognition time and improve the system efifciency when the tag number less than 200 or more than 800 by comparing with the traditional DFSA andⅠDFSA, and the system efifciency of the proposedⅡDFSA is not worse than those of them while the tag number drops in between 200 and 800.关键词
射频识别/ALOHA算法/系统效率临界因子/碰撞时空比Key words
RFID/ALOHA algorithm/system efifciency/ratio of the collision to empty slots分类
信息技术与安全科学引用本文复制引用
王彬,李俊杰,张海鹏,陈紫菱,王利丹..一种改进的RFID标签防碰撞算法[J].电子与封装,2015,(3):18-21,48,5.基金项目
浙江省智慧城市中心暨企业研究院人才培养项目 （）
