Currently pursing his PhD degree at School of Computing, University of Ulsan, South Korea. He completed B.Sc. degree from IIUC, Bangladesh and M.Sc. in EE from BTH, Sweden. He served as an Asst. Professor in IIUC. His research area is Ad-Hoc Network and Multimedia comm.Md. Shahjahan completed B.Sc. &now working in a reputed telecom company-Qubee.