Frontend design of shortwave band human body communication devices

• Project/Area Number: 26420340
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: The University of Tokyo
• Principal Investigator: SASAKI KEN 東京大学, 大学院新領域創成科学研究科, 教授 (40178645)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: ウェアラブル機器 / 人体通信 / 伝送特性 / 回路設計 / フロントエンド / 短波帯 / WBAN / ファントム

Outline of Final Research Achievements

Human body communication (HBC) is a wireless transmission method that uses human body as part of the transmission medium and uses electrodes instead of antennas. Transmission characteristics of HBC in shortwave band were investigated with respect to arrangement of the electrodes and placements of the transmitter and the receiver. Impedance characteristics of the transmission channel and couplings with the surrounding environment were evaluated by numerical analysis and experiments. These results provide technical data for frontend design of the transmitter and the receiver of human body communication.

Research Products

• [Journal Article] Evaluation of Ground Loop Through the Floor in Human Body Communication (2017)
  • Author(s): Ken Sasaki, Naruto Arai, Dairoku Muramatsu and Fukuro Koshiji
  • Journal Title: International Journal of Wireless Information Networks Volume: 印刷中 Issue: 2 Pages: 78-90
  • DOI: 10.1007/s10776-017-0338-3
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] 人体上の送信機から据置型受信機への人体通信の等価回路モデル (2017)
  • Author(s): 荒井稔登，西田欣史，佐々木健，村松大陸
  • Organizer: 2017年度精密工学会春季大会学術講演会
  • Place of Presentation: 慶応義塾大学日吉キャンパス
  • Year and Date: 2017-03-13
• [Presentation] 人体通信における送信機電極モデルと伝送特性 (2017)
  • Author(s): 西田欣史, 荒井稔登, 佐々木健, 村松大陸
  • Organizer: 第31回エレクトロニクス実装学会春季講演大会
  • Place of Presentation: 慶応義塾大学日吉キャンパス
  • Year and Date: 2017-03-06
• [Presentation] Variation of Impedance in Transmission Channel of Human Body Communication (2017)
  • Author(s): Naruto Arai, Ken Sasaki, Dairoku Muramatsu, and Yoshifumi Nishida
  • Organizer: 11th Intl. Symp. on Medical Information and Communication Technology
  • Place of Presentation: Lisbon, Portugal
  • Year and Date: 2017-02-06
  • Int'l Joint Research
• [Presentation] Transmission Model of Human Body Communication Incorporating Size and Distance between the Two Electrodes of a Transmitter (2016)
  • Author(s): Naruto Arai, Dairoku Muramatsu, and Ken Sasaki
  • Organizer: 2016 Intl. Conf. on Electronics Packaging (ICEP)
  • Place of Presentation: 北海道札幌市教育文化会館
  • Year and Date: 2016-04-20
  • Int'l Joint Research
• [Presentation] Evaluation of Ground Loop through the Floor in Human Body Communication (2016)
  • Author(s): Ken Sasaki, Dairoku Muramatsu, Naruto Arai, Fukuro Koshiji
  • Organizer: 2016 9th International Symposium on Medical Information and Communication Technology
  • Place of Presentation: 米国，ボストン
  • Year and Date: 2016-03-21
  • Int'l Joint Research
• [Presentation] Equivalent Output Impedance of a Transmitter-Human-Body Communication Module (2015)
  • Author(s): Naruto Arai, Dairoku Muramatsu, Ken Sasaki
  • Organizer: The 4th IEEE Global Conference on Consumer Electronics (GCCE2015)
  • Place of Presentation: 日本，大阪
  • Year and Date: 2015-10-27
  • Int'l Joint Research
• [Presentation] Maximization of Received Signal Power by Impedance Matching in Human Body Communication Receiver (2015)
  • Author(s): Naruto Arai, Dairoku Muramatsu, Ken Sasaki
  • Organizer: Bodynets2015 - 10th EAI International Conference on Body Area Networks
  • Place of Presentation: オーストラリア，シドニー
  • Year and Date: 2015-09-28
  • Int'l Joint Research
• [Presentation] Measurement of Human Body Communication Transmission Characteristics at 20MHz (2015)
  • Author(s): Thang Nguyen Xuan, Dairoku Muramatsu, Ken Sasaki
  • Organizer: 2015 9th International Symposium on Medical Information and Communication Technology (ISMIT)
  • Place of Presentation: 湘南国際村センター（神奈川県三浦郡葉山町）
  • Year and Date: 2015-03-24 – 2015-03-26
• [Presentation] ウェアラブル機器と据置型機器間の人体通信に関する研究 (2015)
  • Author(s): 荒井稔登，村松大陸，佐々木健
  • Organizer: 第29回エレクトロニクス実装学会春季講演大会
  • Place of Presentation: 東京大学（東京都文京区）
  • Year and Date: 2015-03-16 – 2015-03-18