This paper addresses network performance evaluation for the Internet of Things. There are a wide variety of networks at the bottom layer of the Internet of Things, such as wireless sensor network, ad hoc network. Therefore, it is not easy for the Internet of Things to evaluate its network performance. For the heterogeneity of the Internet of Things, this paper proposes an application-oriented network performance evaluation model. This model combines the qualitative and quantitative evaluation method, giving the four levels of network performance firstly, and proposes a new network performance evaluation indicator, which is cumulative network performance evaluation value. In this model, it gives the qualitative and quantitative analysis for the performance of the Internet of Things at the application layer, and determines the level of network performance, then calculates the network performance evaluation value and the cumulative network performance evaluation value. By analyzing the network operating data collected, the experimental results show that the network performance level and the two network performance values characterize the status of the Internet of Things accurately. These evaluation results can provide basis for decision making to optimize network configuration and improve network performance.
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