Intrabody communication (IBC) is a promising approach for realizing information transmission among various wearable or implantable devices within bodyNET. The existing IBC studies are limited to the local or abstract geometric channel model, which is limited to providing efficient channel characteristics for the various transmitting scenarios. The aim of this article is to reconstruct a whole-body model with anatomical features and combine the field-circuit model for investigating the human channel characteristics. A visible human data (VHD) is established by segmentation and 3-D reconstruction of layered tissues. The transmission attenuation was simulated and analyzed through the finite element method. In vivo experiments and phantom experiments were implemented to validate the simulation results. For the on-body communication, the transmission attenuation of the short distance was similar to the low-pass filter’s amplitude-frequency characteristics. For the implantable communication, the consistency coefficient of the attenuation between in-body to on-body and on-body to in-body was higher than 98%, indicating that the body channel is bidirectional. This work provides a repeatable and verified VHD-based whole-body model for the human channel attenuation investigation. It is an essential step for the further development of IBC, such as the transceiver design and the multinodes’ protocol for bodyNET.

中文翻译：

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一种基于可见人体数据的全身模型，用于研究体内通信的传输衰减


体内通信（IBC）是一种在 bodyNET 内实现各种可穿戴或植入设备之间信息传输的有前途的方法。现有的IBC研究仅限于局部或抽象的几何信道模型，仅限于为各种传输场景提供有效的信道特性。本文的目的是重建具有解剖特征的全身模型，并结合场电路模型来研究人体通道特性。通过分层组织的分割和 3D 重建来建立可见的人体数据 (VHD)。通过有限元方法对传输衰减进行了模拟和分析。进行了体内实验和体模实验来验证模拟结果。对于体上通信，短距离的传输衰减与低通滤波器的幅频特性相似。对于植入式通信，体内到体外和体内到体内的衰减一致性系数高于98％，表明体内通道是双向的。这项工作为人体通道衰减研究提供了一个可重复且经过验证的基于 VHD 的全身模型。这是IBC进一步发展的重要一步，例如bodyNET的收发器设计和多节点协议。