摘要
针对动态RFID系统的标签防碰撞问题,文章提出了一种新型去除空闲时隙和减少碰撞时隙ALOHA算法(NCIRC_FSA)。算法在去空闲帧时隙ALOHA算法(CIFSA)基础上,通过分组查询前缀区分碰撞时存在的两种情况,使用碰撞调整机制将碰撞时隙转化为成功时隙,提高标签识别效率。仿真结果表明,NCIRC_FSA算法较FSA、DFSA、GDFSA和CIFSA,标签丢失率更低,识别效率更高。
In this Paper,a new frame time slot Aloha anti-collision algorithm for removing free time slot and reducing collision time slot(NCIRC_FSA)was proposed to solve the problem of tag collision prevention in dynamic RFID system.On the basis of the free frame time slot ALOHA algorithm(CIFSA),the algorithm distinguishes the two situations in the collision by grouping the query prefix,uses the collision adjustment mechanism to convert the collision time slot into the successful time slot,and improves the label recognition efficiency.Simulation results show that NCIRC_FSA algorithm has lower tag loss rate and higher recognition efficiency than FSA,DFSA,GDFSA and CIFSA.
作者
邓红卫
林紫玉
姚铭
李民
DENG Hong-wei;LIN Zi-yu;YAO Ming;LI Min(College of Computer Science and Technology,Hengyang Normal University,Hengyang Hunan 421002,China;Hunan Provincial Key Laboratory of Intelligent Information Processing and Application,Hengyang Hunan 421002,China)
出处
《衡阳师范学院学报》
2020年第3期33-37,共5页
Journal of Hengyang Normal University
基金
湖南省教育厅科学研究重点项目(湘教通[2019]90号,No:18A332)
湖南省普通高校校企合作创新创业教育基地建设项目(湘教通[2018]380号,No:53)。
关键词
分组查询前缀
碰撞调整机制
丢失率
prefix of group query
adjustment mechanism of collision
loss rate
