Identification of IoT Network Type Based on The Response Delay Property

Abstract

The large number of Internet of things (IoT) terminals increases the cost and difficulty of IoT network management such as network scan. Wireless IoT networks that have low data rate especially require low overhead for network management to avoid interruption. Hence, it is important to make an automatic identification of network type for effective network management. To successfully estimate the type of a network, in which IoT terminals are involved, this study examines the fundamental properties of the response delay of IoT terminals in scan events. We carry out indoor experiments of network scan to wireless terminals in wireless LAN (WLAN) and Low Power, Wide Area (LPWA) networks, including Wi-SUN and LoRa network. From the result of response delay obtained from the experiments, we then examine the basic property of the response delay, especially about the minimum response delay. Finally, we propose a scheme of network-type estimation based on the property of the minimum delay in different networks. The evaluation results show that the scan response delay is a useful factor for successfully identifying different types of IoT networks.