The Sensitivity Characteristics of the Electrostatic Coupling Intra-Body Communication Based on the Mach-Zehnder Electro-Optic Modulation

The Intra-Body Communication (IBC) based on optoelectronic modulation is believed as an available method to achieve high speed and reliable signal transmission based on human body channel. In this paper, the sensitivity characteristics of the electrostatic coupling IBC based on Mach-Zehnder (M-Z) electro-optic modulation have been investigated. Firstly, the mathematic model of the electrostatic coupling IBC based on M-Z optoelectronic modulator has been proposed, while the sensitivity characteristics of this kind of IBC are discussed. Secondly, the corresponding measurements were carried out to verify the proposed model. Our investigation indicates that the simulation results of the sensitivity characteristic coincide with the corresponding in vivo measurement results, while the proposed model will help to achieve reliable, high speed and low cost intra-body communication.

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