The indoor–outdoor (IO) status of mobile devices is fundamental information for various smart city applications. In this paper, we present NeuralIO, a neural-network-based method for dealing wi ... Read More

In this paper, we discuss the optimal arrangement of wearable devices based on the lifespan of animals, which are utilized as device transporter materials, for the long-term monitoring of the wil ... Read More

In recent years, on-body device position recognition has attracted a lot of attention from the ubiquitous computing community with a view to providing reliable services to users. The existing wor ... Read More

In a previous study, we developed a novel fingerprint optical sensor that can detect fingerprint patterns within the skin of a finger without considering the effect of surface condition, and the ... Read More

Energy saving has been explored over the past decades. Since most of the energy consumption in a building is from the air condition system, the air conditioners in a building are often controlled ... Read More

Smartphone-based disaster communication systems have been the topic of many recent studies. However, existing systems unrealistically assume that prior to a disaster, the required applications ha ... Read More

In sensor networks, sensor localization is one of the mandatory functions for physical sensing. In this paper, we propose a sensor localization system that utilizes wireless local area network (W ... Read More

In this research project, we aim to build a long-range (LoRa)-based Internet of Things (IoT) secure localization system and application based on multisensor fusion calculation. The LoRa technolog ... Read More