Chen Sun received the B.Eng from Northwestern Polytechnical University, Xi an, China in 2000 and the Ph.D. degree from Nanyang Technological University, Singapore in 2005, both in electrical engineering. From November 2002 to March 2003, he was with ATR Adaptive Communications Research Laboratories, Kyoto, Japan as a student intern, working on personal wireless links for wireless ad hoc networks. From August 2004, he is a researcher at ATR Wave Engineering Laboratories, Kyoto. His research interests include array signal processing, communication theory and radio communication systems. Jun Cheng received the B.S. and M.S. degrees in telecommunications engineering from Xidian University, Xi an, China, in 1984 and 1987, respectively, and the Ph.D. degree in electrical engineering from Doshisha University, Kyoto, Japan, in 2000. From 1987 to 1994, he was an Assistant Professor and Lecturer in the Department of Information Engineering, Xidian University. From 1995 to 1996, he was an Associate Professor in the National Key Laboratory on Integrated Service Network, Xidian University. In April 2000, he joined ATR Adaptive Communications Research Laboratories, Kyoto, Japan, where he was a Visiting Researcher. From August 2002 to June 2003, he was working as a Staff Engineer at the R&D Center, Panasonic Mobile Communications Co., Ltd. (formerly Wireless Solution Labs., Matsushita Communication Industrial Co., Ltd.),Yokosuka, Japan. From July 2003 to March 2004, he was a Staff Engineer at Next-Generation Mobile Communications Development Center, Matsushita Electric Industrial Co., Ltd., Yokosuka, Japan. In April 2004, he joined Doshisha University, Kyoto, Japan. Currently, he is an Associate Professor in the Department of Intelligent Information Engineering and Sciences, Doshisha University, and a Visiting Researcher in ATR Wave Engineering Laboratories, Kyoto, Japan. His research interests are in the areas of communications theory, information theory, coding theory, array signal processing, and radio communication systems. Takashi Ohira received B.E. and D.E. degrees in communication engineering from Osaka University, Osaka, Japan, in 1978 and 1983. In 1983, he joined NTT Electrical Communication Laboratories, Yokosuka, Japan, where he was engaged in research on monolithic integration of microwave semiconductor devices and circuits. He developed GaAs MMIC transponder modules and microwave beamforming networks aboard multi-beam communication satellites, Engineering Test Satellite VI (ETS-VI) and ETS-VIII, at NTT Wireless Systems Laboratories, Yokosuka, Japan. From 1999, he was engaged in research on wireless adhoc networks and microwave analog adaptive antennas at ATR Adaptive Communications Research Laboratories, Kyoto, Japan. Concurrently he was a Consulting Engineer for National Space Development Agency (NASDA) ETS-VIII Project in 1999, and an Invited Lecturer for Osaka University in 2000 to 2001. From 2005, he was Director of ATR Wave Engineering Laboratories, Kyoto, Japan, and an Invited Professor of Tokyo Institute of Technology, Tokyo, Japan. Currently he is a Professor of Toyohashi University of Technology, Toyohashi, Japan. He serves as URSI Commission C Vice Chair, APMC2006 International Steering Committee Chair, EuMA Award Committee member, and EuMC2006 Technical Program Committee member. He is an IEEE Fellow. He co-authored Monolithic Microwave Integrated Circuits (Tokyo: IEICE, 1997). Dr. Ohira was awarded 1986 IEICE Shinohara Prize, 1998 APMC Japan Microwave Prize, and 2004 IEICE Electronics Society Prize.
