Evaluation and Verification of Channel Transmission Characteristics of Human Body for Optimizing Data Transmission Rate in Electrostatic-Coupling Intra Body Communication System: A Comparative Analysis

Intra-body communication is a new wireless scheme for transmitting signals through the human body. Understanding the transmission characteristics of the human body is therefore becoming increasingly important. Electrostatic-coupling intra-body communication system in a ground-free situation that int...

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Published in:PloS one 2016-02, Vol.11 (2), p.e0148964-e0148964
Main Authors: Tseng, Yuhwai, Su, Chauchin, Ho, Yingchieh
Format: Article
Language:English
Subjects:
Algorithms
Batteries
Biology and Life Sciences
Biomedical materials
Biosensing Techniques
Broadband
Capacitance
Capacitors
Cell Phone
Cellular telephones
Communications systems
Comparative analysis
Computer simulation
Computers
Coupling
Data transmission
Electric Capacitance
Electric Impedance
Electric Power Supplies
Electrodes
Energy transmission
Engineering
Engineering and Technology
Equipment Design
Human Body
Humans
Interference
Lithium
Load distribution
Load resistance
Medicine and Health Sciences
Mobile computing
Models, Statistical
Models, Theoretical
Noise levels
Physical Sciences
Sensors
Signal Processing, Computer-Assisted
Static Electricity
Step functions
Telemetry
Tomography
Transmission rate (communications)
Transmitters
Wearable computers
Wearable technology
Wireless communications
Wireless Technology
Wireless telephones
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description Intra-body communication is a new wireless scheme for transmitting signals through the human body. Understanding the transmission characteristics of the human body is therefore becoming increasingly important. Electrostatic-coupling intra-body communication system in a ground-free situation that integrate electronic products that are discretely located on individuals, such as mobile phones, PDAs, wearable computers, and biomedical sensors, are of particular interest. The human body is modeled as a simplified Resistor-Capacitor network. A virtual ground between the transmitter and receiver in the system is represented by a resister-capacitor network. Value of its resistance and capacitance are determined from a system perspective. The system is characterized by using a mathematical unit step function in digital baseband transmission scheme with and without Manchester code. As a result, the signal-to-noise and to-intersymbol-interference ratios are improved by manipulating the load resistor. The data transmission rate of the system is optimized. A battery-powered transmitter and receiver are developed to validate the proposal. A ground-free system fade signal energy especially for a low-frequency signal limited system transmission rate. The system transmission rate is maximized by simply manipulating the load resistor. Experimental results demonstrate that for a load resistance of 10k-50k Ω, the high-pass 3 dB frequency of the band-pass channel is 400kHz-2MHz in the worst-case scenario. The system allows a Manchester-coded baseband signal to be transmitted at speeds of up to 20M bit per second with signal-to-noise and signal-to-intersymbol-interference ratio of more than 10 dB. The human body can function as a high speed transmission medium with a data transmission rate of 20Mbps in an electrostatic-coupling intra-body communication system. Therefore, a wideband signal can be transmitted directly through the human body with a good signal-to-noise quality of 10 dB if the high-pass 3 dB frequency is suitably selected.
doi_str_mv 10.1371/journal.pone.0148964
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A battery-powered transmitter and receiver are developed to validate the proposal. A ground-free system fade signal energy especially for a low-frequency signal limited system transmission rate. The system transmission rate is maximized by simply manipulating the load resistor. Experimental results demonstrate that for a load resistance of 10k-50k Ω, the high-pass 3 dB frequency of the band-pass channel is 400kHz-2MHz in the worst-case scenario. The system allows a Manchester-coded baseband signal to be transmitted at speeds of up to 20M bit per second with signal-to-noise and signal-to-intersymbol-interference ratio of more than 10 dB. The human body can function as a high speed transmission medium with a data transmission rate of 20Mbps in an electrostatic-coupling intra-body communication system. Therefore, a wideband signal can be transmitted directly through the human body with a good signal-to-noise quality of 10 dB if the high-pass 3 dB frequency is suitably selected.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>26866602</pmid><doi>10.1371/journal.pone.0148964</doi><tpages>e0148964</tpages><oa>free_for_read</oa></addata></record>
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identifier ISSN: 1932-6203
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1932-6203
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source Publicly Available Content Database; PubMed Central
subjects Algorithms
Batteries
Biology and Life Sciences
Biomedical materials
Biosensing Techniques
Broadband
Capacitance
Capacitors
Cell Phone
Cellular telephones
Communications systems
Comparative analysis
Computer simulation
Computers
Coupling
Data transmission
Electric Capacitance
Electric Impedance
Electric Power Supplies
Electrodes
Energy transmission
Engineering
Engineering and Technology
Equipment Design
Human Body
Humans
Interference
Lithium
Load distribution
Load resistance
Medicine and Health Sciences
Mobile computing
Models, Statistical
Models, Theoretical
Noise levels
Physical Sciences
Sensors
Signal Processing, Computer-Assisted
Static Electricity
Step functions
Telemetry
Tomography
Transmission rate (communications)
Transmitters
Wearable computers
Wearable technology
Wireless communications
Wireless Technology
Wireless telephones
title Evaluation and Verification of Channel Transmission Characteristics of Human Body for Optimizing Data Transmission Rate in Electrostatic-Coupling Intra Body Communication System: A Comparative Analysis
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