摘要
超高频RFID协议EPC C1G2利用随机时隙算法解决多标签识别的碰撞问题。该算法包含一个可调参数Q。EPCC1G2协议附录D提供了一种动态调整Q值的算法。该算法被称为Q选择算法。它可以在未知标签数量的情况下提高识别效率。但Q选择算法本身也有一些有待确定的可调参数。文中试图通过仿真的方法得到这些参数的优化值。利用这些优化参数得到的识别效率仅低于理想条件下的最佳值4.6个百分点。
UHF RFID protocol EPC C1G2 utilizes the random-slot algorithm for solving the collision problem in multi-tag identification.This algorithm involves a adjustable parameter Q,and the Q Selection algorithm for dynamic adjustment of Q value is given in Annex D of EPC C1G2,which could improve the efficiency of identification even without knowing the number of identification tags.However,the algorithm itself also involves some adjustable parameters to be defined.The author tries to find the optimized values of these parameters by simulation,and the identification efficiency achieved by optimized parameters in this paper is just only 4.6 points percent less than the best result under ideal condition.
出处
《通信技术》
2010年第5期53-55,共3页
Communications Technology
关键词
EPC
Q选择算法
参数优化
仿真
EPC
Q selection algorithm
optimal value
simulation
