Room-by-Room Device Grouping for Put-and-Play IoT System

In this study, we propose a Put-and-Play (PnP) Internet of Things (IoT) system, an IoT system that requires no initial setup. IoT systems require the initial setup consisting of device location information setup, network configurations, and device coordination. Although configuration automation and assistant methods for network configurations and device coor-dination have been proposed, device location information setup still needs manual operations. This paper therefore proposes a room-by-room device grouping method that groups IoT devices in the same room. We utilize IEEE 802.11ac Channel State Information (CSI) to group IoT devices in the same room with a non-supervised learning algorithm. Experimental evaluations conducted in a smart house environment reveal that our device grouping method successfully groups IoT devices in the same room with an adjusted Rand index (ARI) of up to 1.00.