EPC Gen2标准防碰撞方案的研究与改进  

Research and improvement of EPC Gen2 anti-collision protocol

作　　者：徐圆圆[1] 曾隽芳[1] 陈琳[1] 刘禹[1] 

机构地区：[1]中国科学院自动化研究所,北京100190

出　　处：《计算机应用》2008年第12期3271-3273,共3页journal of Computer Applications

基　　金：国家863计划项目(2006AA04A103);国家科技支撑计划项目资助(2006BAH02A01)

摘　　要：EPC Gen2标准中对防碰撞算法的规定比较灵活,因此设计合理的算法可以较大程度地提高系统的性能。在EPC Gen2标准防碰撞机制的基础上,针对其在附录中推荐的Q值调整算法及多标签读取过程中的一些不足,提出了新的Q值调整算法及改进的时隙随机Aloha算法。仿真结果显示,改进后的算法可增加系统吞吐率,降低标签识别延时,表现出良好的性能。Anti-collision protocol in EPC Gen2, protocol is flexible, so reasonable algorithm can evidently improve the system performance. Based on the research of its Q value adjusting method and the process of this important protocol, a new Q value adjusting method and an improved slotted random Aloha method were proposed. The simulation results show that the improved algorithms can increase the system throughput and lower the delay of tag identification, showing a good performance.

关 键 词：无线射频识别 防碰撞算法 时隙随机Aloha EPC GEN2 Q值 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]