Biomedical Engineering Group, University of Seville, Seville, Spain.
IEEE Trans Biomed Eng. 2012 Nov;59(11):3263-9. doi: 10.1109/TBME.2012.2205382. Epub 2012 Jun 20.
Modeling of intrabody communication (IBC) entails the understanding of the interaction between electromagnetic fields and living tissues. At the same time, an accurate model can provide practical hints toward the deployment of an efficient and secure communication channel for body sensor networks. In the literature, two main IBC coupling techniques have been proposed: galvanic and capacitive coupling. Nevertheless, models that are able to emulate both coupling approaches have not been reported so far. In this paper, a simple model based on a distributed parameter structure with the flexibility to adapt to both galvanic and capacitive coupling has been proposed. In addition, experimental results for both coupling methods were acquired by means of two harmonized measurement setups. The model simulations have been subsequently compared with the experimental data, not only to show their validity but also to revise the practical frequency operation range for both techniques. Finally, the model, along with the experimental results, has also allowed us to provide some practical rules to optimally tackle IBC design.
体内通信 (IBC) 的建模需要理解电磁场与活体组织之间的相互作用。同时，一个精确的模型可以为身体传感器网络中高效和安全的通信通道的部署提供实际的启示。在文献中，已经提出了两种主要的 IBC 耦合技术：电耦合和电容耦合。然而，到目前为止，还没有报道能够模拟这两种耦合方法的模型。在本文中，提出了一种基于分布参数结构的简单模型，该模型具有适应电耦合和电容耦合的灵活性。此外，通过两种协调的测量设置获得了两种耦合方法的实验结果。随后，将模型模拟与实验数据进行了比较，不仅验证了模型的有效性，还修正了两种技术的实际频率工作范围。最后，该模型和实验结果还使我们能够提供一些实用的规则来优化 IBC 设计。
