DUCSUN LIM received B. S. Degree in computer science engineering from Hanyang cyber University, Seoul, South Korea, in 2008. He received the Ph.D. Degree in computer software, from Hanyang University, Seoul, Republic of Korea in 2023. His research interests include multi-access(mobile) edge computing, Internet of Things, delay tolerant network (DTN)), digital twin, machine learning, deep learning and reinforcement learning.