作　　者： ; ; ;

机构地区： 广东工业大学自动化学院

出　　处： 《计算机科学》 2013年第4期102-106,共5页

摘　　要： 提出一种静态密集标签环境下基于ALOHA和查询树的多路接入控制协议(S-TMAC),分析了该协议的原理、步骤及性能参数。接着将其扩展为动态密集标签环境下的多路接入控制协议(M-TMAC),定义了协议结构,建立了动态系统模型,并对标签识别时间、入射角、最大速度等参数进行了分析。仿真表明,动态系统模型下的M-TMAC的标签识别时间与S-TMAC相当,仅为ALOHA算法的1/2、树形算法的1/3;且在满足预设识别率和干扰率时,允许的标签有较大的入射角和运行速度。 This paper firstly presented a RFID MAC protocol based on ALOHA and query tree for static tag environment（S-TMAC）,then analied the fundamental,process and performance.Secondly,S-TMAC was improved to be M-TMAC which is suitable for mobile tag environment.Protocol structure was defined,and system model was built.Optional reader deployment strategies were put forward.The discussion of the tag identifying time,incidence angle and speed limit was followed.Lastly,simulations indicate that the tag identifying time in M-TMAC and S-TMAC are similar,which is half of ALOHA-based and one-third of tree-based.Furthermore,M-TMAC has low extra system cost,upper tag speed limit and tag incidence angle limit when satisfying default identifying rate and interference rate.

关 键 词： 射频识别 动态密集标签环境 多路接入控制协议

领　　域： [电子电信] [电子电信]