Joobum Kim received his MS in Information and Communications from Gwangju Institute of Science and Technology (GIST) in 2002 and his PhD in Telecommunication Engineering from the University of Texas at Dallas in 2016. He worked for Samsung Electronics from 2002 to 2005. He was a senior researcher at the Korea Institute of Science and Technology Information (KISTI) from 2005 to 2019. Currently, he is an Assistant Professor at Middle Georgia State University. His research areas of interest include optical network, routing and spectrum allocation, queueing analysis, and Internet of Things.