Signal Analysis of Wearable Transmitter for Intra-body Communication

We propose a signal channel model that involves using a wearable transmitter for an intra-body communication system. The impedance components regarding the wearable transmitter were added to our previous noise channel model to construct new model. The transmitting voltage through the human body was measured at the embedded electrodes by using a spectrum analyzer and compared with the circuit simulation. We found that the impedance components between the human body and the embedded electrodes agree with experimental results. However, the experimental results from between the wearable transmitter and human body differ from those of the circuit simulation. This means that the capacitance between the wearable transmitter and human body should be measured precisely.

[1]  Yuichi Kado,et al.  Noise analysis for near-field intra-body communication systems , 2013, 2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC).

[2]  M. Shinagawa,et al.  A near-field-sensing transceiver for intra-body communication based on the electro-optic effect , 2003, Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412).

[3]  Hoi-Jun Yoo,et al.  The Human Body Characteristics as a Signal Transmission Medium for Intrabody Communication , 2007, IEEE Transactions on Microwave Theory and Techniques.

[4]  H. Morimura,et al.  Signal-to-Noise Ratio Analysis of a Noisy-Channel Model for a Capacitively Coupled Personal Area Network , 2013, IEEE Transactions on Antennas and Propagation.

[5]  Athanasios V. Vasilakos,et al.  Body Area Networks: A Survey , 2010, Mob. Networks Appl..

[6]  Nozomi Haga,et al.  Proper Derivation of Equivalent-Circuit Expressions of Intra-Body Communication Channels Using Quasi-Static Field , 2012, IEICE Trans. Commun..

[7]  Mitsuru Shinagawa,et al.  AC Electric Field Communication for Human-Area Networking , 2010, IEICE Trans. Electron..

[8]  M. Weiser.  The Computer for the Twenty-First Century , 1991 .

[9]  Masao Taki,et al.  Induced Voltage to an Active Implantable Medical Device by a Near-Field Intra-Body Communication Device , 2011, IEICE Trans. Commun..

[10]  Jianqing Wang,et al.  Analysis of On-Body Transmission Mechanism and Characteristic Based on an Electromagnetic Field Approach , 2009, IEEE Transactions on Microwave Theory and Techniques.

[11]  Thomas G. Zimmerman,et al.  : Near-field , 2022 .

[12]  K. Fujii,et al.  Electric Field Distributions of Wearable Devices Using the Human Body as a Transmission Channel , 2007, IEEE Transactions on Antennas and Propagation.