摘要
基于帧时隙ALOHA协议,对ISO18000-6 Type C标准中采用的防冲突算法(Q算法)进行改进。在帧的结束处,改进的Q算法通过检测机制来进行Q值的更新。因为改进的Q算法中每个清点周期的帧大小都会自动地取较优值,所以降低了识别所需要的总时隙数和周期数。仿真结果显示改进的Q算法比TypeC标准中的Q算法更有效。
Based on framed slot ALOHA protocol,the anti-collision algorithm(Q algorithm) of ISO18000-6 Type C is improved.At the end of frame,improved Q algorithm updates Q by means of a detection mechanism.Because the length of frame in every round of improved Q algorithm automatically adaptes the better value,improved Q algorithm reduces the number of slots and rounds of identification.Simulation results show that improved Q algorithm is more efficient than the Q algorithm of Type C protocol.
出处
《计算机工程与应用》
CSCD
北大核心
2010年第20期42-45,共4页
Computer Engineering and Applications
基金
国家电子信息产业发展基金资助项目(No.信部运[2006]634号)
关键词
射频识别
帧时隙ALOHA
防冲突算法
Radio Frequency Identification(RFID)
frame-ALOHA
anti-collision