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针对传统业务模型不再适合描述物联网业务流量特征的问题,将基于射频识别(RFID)的物联网系统作为研究对象,针对其构架模式和业务特点,利用服从帕累托(Pareto)重尾分布的Multiple ON-OFF业务模型,建立了一种集中式的物联网自相似分层业务流量模型,并通过自相似特性的测量验证了该模型的有效性.仿真结果表明,该模型是有效的,且这种自相似特性增大了网络丢包率和排队时延,降低了系统吞吐量.
In view of the fact that the traditional business model is no longer suitable for describing the features of IoT traffic, IoT system based on Radio Frequency Identification (RFID) is taken as the research object. According to its architecture mode and service features, Pareto-heavy-tailed distribution , A kind of centralized IOT self-similar layered traffic model is established and the validity of this model is verified through the self-similar feature measurement.The simulation results show that this model is effective, This self-similar feature increases network packet loss rate and queuing delay, reducing system throughput.