Boo-Hyung Lee

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Embedded devices are going to be used extremely in Internet of Things (IoT) environments. The small and tiny IoT devices will operate and communicate each other without involvement of users, while their operations must be correct and protected against various attacks. In this paper, we focus on a secure firmware update issue, which is a fundamental security(More)
A significant increase in ageing population is seen in past ten years. Recent advances in wireless sensor networks and wireless body area networks have paved the way for remote health monitoring. With remote health monitoring devices, patients and caretakers are enabled to keep track of patient's health status each second and provide immediate treatment to(More)
It is important to have the accuracy sorting plan for the save of postman work time and the fast delivery of the receipt mail. It’s also very important to plan the proper carrier sorting plan at the situation where the number of pocket of letter sorting machine [LSM] is less than the number of postal code or the number of carrier. This paper describes the(More)
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