Improvement of anti-collision algorithm in RFID system
Li Cui · Xi'an Gongcheng Keji Xueyuan xuebao · 2011
An algorithm based on QT algorithm and ID-BTS algorithm is proposed.It aims at the situation when readers are required to identify tags repeatedly.A stack S is introduced to record the right sub tree node information when collision occurred in binary tree,and a queue to record the query command when no collision occurred.Readers only need to pop up the query prefix for further identification when it has finished the first round.Reader will identify one certain tag when it has sent a specific prefix.Simulation results with Matlab show that this algorithm can be more efficient to identify tags at the total number of searches and traffic in the system.