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Wireless Harness Inside ICT Equipments
Narihiro Nakamoto*, Hiroshi Ban*, Tomohiro Oka*, Shoichi Kitazawa*, Kiyoshi Kobayashi*,Noriyasu Kikuchi**, Hironobu Hatamoto**, Satoru Shimizu**, and Minako Hara****ATR Wave Engineering Laboratories, 2-2-2 Hikaridai, Seika-cho, Kyoto 619-0288, Japan**OKI Electric Industr Co. Ltd., 3-4Hikari-no-oka, Yokosuka-shi, Kanagawa 239-0847, Japan***NTT Energy and Environment Systems Laboratories, 3-1 Morinosato Wakamiya, Atsugi-shi, Kagagawa
243-0198, JapanNakamoto.Narihiro@ap.MitsubishiElectric.co.jp

Abstract—We have been investigating point-to-multipoint wireless communication suitable for the use inside Information andCommunication Technology (ICT) equipments to accommodate demands for weight saving, environmental lifecycle CO2 reduction andimprovement of assembly/maintenance efficiency by means of replacing communication wire harnesses with wireless technology, that is wirelessharness. Through the radio propagation measurements inside four equipments of automatic teller machine (ATM), ticket vendor, vending
machine, and printer, a consistent specification applicable to them has been determined. Based on this specification, a test wireless system has
been developed. It showed a good performance even inside the ATM that has the most lossy environment among the four equipments we tested.
Keyword—2.4 GHz ISM band, ICT equipment, radio communication equipment, radio propagation, wireless harness

Narihiro Nakamoto (M’08) was born in Hyogo, Japan, in 1981. He received the B.E. and the M.E. degrees in electrical engineering from
Kyoto University, Kyoto, Japan, in 2005 and 2007, respectively.
In 2007, he joined Mitsubishi Electric Corporation, Kanagawa, Japan. From 2010 to 2012, he was with ATR Wave Engineering
Laboratories, Kyoto, Japan, and was engaged in research on microstrip antennas and wireless communication system inside equipment. In2012, he returned to Mitsubishi Electric Corporation. Since then, he has been engaged in research and development on array antennas forsatellite communications and radar systems.
Mr. Nakamoto is a member of the IEICE of Japan.

Hiroshi Ban (M’11) received the B.E., M.E., and D.E. degrees in polymer science and technology from the Tokyo Institute of Technology,Tokyo, Japan, in 1982, 1984, and 1991, respectively.
In 1984, he joined Ibaraki Electrical Communications Laboratories, Nippon Telegraph and Telephone Corporation, and started hiscareer in research on photosensitive materials and microlithographic technologies. Since 2001, he has expanded his interest to sensor
network systems, environmental assessment methodologies, and environmental ICT technologies. He moved to ATR in 2009, and iscurrently a head of the Department of Environment Communications of ATR Wave Engineering Laboratories. He received thePhotopolymer Science and Technology Award from the Photopolymer Conference in 1998.
Dr. Ban is a member of the IEICE of Japan, JSAP, and SPSJ.

Tomohiro Oka was born in Kanagawa, Japan, on August 1968. He received the B.E., and M.E. degrees from Hosei University, Japan, in
1991 and 1993, respectively.
In 1993, he joined Mitsubishi Electric Corporation, where he engaged in design and development of communication systems forgovernment and municipal offices. Since 2010, he has been engaged in research and development of the wireless communication system
inside ICT Equipment and the future mobile satellite communication systems at ATR Wave Engineering Laboratories, Kyoto, Japan. He
received the prize for science and technology of the commendation for science and technology by the minister of education, culture, sports,science and technology, in 2009.
Mr. Oka is a member of the IEICE of Japan.

2Shoichi Kitazawa received the B.E. and M.E. degrees from Kinki University, Osaka, Japan, in 1991 and 1993, respectively, and the D.E.
degree from Osaka Prefecture University, Osaka, Japan, in 2007.
In 1993, he joined Matsushita Nittoh Electric Co., Ltd., Kyoto, Japan, where he has been engaged in development on microwave filters.
Since 2005, he has been with ATR Wave Engineering Laboratories, Kyoto, Japan. His current research interest includes microwave andmillimeter-wave devices.
Dr. Kitazawa is a member of the IEEJ and IEICE of Japan.

Kiyoshi Kobayashi (M’94) received the B.E., M.E. and Ph.D. degrees from Tokyo University of Science, Japan, in 1987, 1989 and 2004,respectively.
He joined NTT Radio Communication Systems Laboratories in 1989. Since then, he has been engaged in the research anddevelopment of digital signal processing algorithms and their implementation techniques including modulation / demodulation,synchronization control and diversity for satellite and personal wireless communication systems. Currently he is the director of ATR
Wave Engineering Laboratories at Advanced Telecommunications Research Institute International, where he is engaged in research on
advanced technologies for wireless communications. From 2012, he has been a visiting professor at Muroran Institute of Technology.
Dr. Kobayashi is a member of the AIAA and IEICE of Japan.

Noriyasu Kikuchi was born in Shizuoka, Japan, in 1976. He received the B.E. degree from Yokohama National University, Japan, in
2000, and the M.E. degree from Tokyo Institute of Technology, Japan, in 2002.
In 2004, he joined the Oki Electric Industry Co., Ltd. His research interests include wireless communication systems.
Mr. Kikuchi is a member of the IEICE of Japan.

Hironobu Hatamoto was born in Hyogo, Japan, in 1981. He received the B.E. degree in electrical and electronic engineering fromShizuoka University, Japan, in 2004, and the M.E. and Ph.D. degrees from Osaka University, in 2006 and 2011, respectively.
In 2009, he joined the Oki Electric Industry Company Limited. His research interests include digital signal processing and wirelesscommunication systems.
Dr. Hatamoto is a member of the IEICE of Japan.

Satoru Shimizu was received the B.E. degree in electronics engineering from Kyoto University, in 1987 and Ph.D. degree from Chiba
University in 1995.
He joined the Oki Electric Industry Co., Ltd. in 1987. He received the Paper Award from the Marine Acoustics Society of Japan in
1995. His current research interests are digital signal processing, wireless communication, and control systems.

Minako Hara is a Research Engineer in Green Material Project at NTT Energy and Environment Systems Laboratories.
She received the B.S. in applied chemistry from Tokyo University of Science in 1998, and M.E. and Ph.D. degrees in applied chemistryfrom The University of Tokyo in 2000 and 2005, respectively. During 2004-2006, as a post-doctor researcher at the Japan Science andTechnology Agency, she developed a methodology of environmental impact assessment and an eco-efficiency index. She joined NTT
Energy and Environment Systems Laboratories in 2006 and studied environmental assessment, including life cycle assessment andmaterial flow analysis. She is currently studying material recovery technology.
Dr. Hara is a member of the Society of Environmental Science, Japan and the Society for Environmental Economics and Policy Studies.