Dr. Morikawa received the B.E., M.E, and Dr. Eng. degrees in electrical engineering from the University of Tokyo, Tokyo, Japan, in 1987, 1989, and 1992, respectively. Since 1992, he had been in the University of Tokyo and currently a professor of Research Center for Advanced Science and Technology at the University of Tokyo. From 1997 to 1998, he stayed in Columbia University as a visiting research associate. From 2002 to 2006, he was a group leader of NICT Mobile Networking Group. His research interests are in the areas of computer networks, ubiquitous networks, mobile systems, wireless networks, and network services. He served as a technical program committee chair of many IEEE/ACM conferences and workshops, Director of IEICE, and sits on numerous telecommunications advisory committees and frequently serves as a consult to government and companies. He received more than 15 awards including the IEICE best paper award in 2002 and 2004, and IPSJ best paper award in 2006. He is a member of IEEE, ACM, ISOC, IEICE, IPSJ, and ITE.