Jaeshin Jang was born in Namhae-gun, Korea, on March 25, 1965. He received the Ph.D. degrees in Electric and Electrical Engineering from KAIST, Korea, in 1998. From July 1997 to February 2002, he worked for Samsung Electronics Company. From August 2008 to July 2009, he was a visiting scholar at Iowa State University. Since March 2002, he has worked for Inje University, Korea. Now he is a Professor at the Inje University. His major interests are energy-efficient cooperative MAC, routing, and transport protocols at wireless communications networks, including 5G mobile communications networks, ad-hoc networks, and IoT networks.