Electromagnetic Wave Propagation in Body Area Networks Using the Finite-Difference-Time-Domain Method

Sensors

Jonathan N. Bringuier¹ 

[1] Department of Electrical Engineering, The Pennsylvania State University, University Park, PA 16802, USA

关键词: Body Area Networks;    FDTD;    conformal;    numerical phantoms;    Cole-Cole model;    recursive convolution method;    mutual coupling;   

DOI  :  10.3390/s120709862

来源: mdpi

【 摘 要 】

A rigorous full-wave solution, via the Finite-Difference-Time-Domain (FDTD) method, is performed in an attempt to obtain realistic communication channel models for on-body wireless transmission in Body-Area-Networks (BANs), which are local data networks using the human body as a propagation medium. The problem of modeling the coupling between body mounted antennas is often not amenable to attack by hybrid techniques owing to the complex nature of the human body. For instance, the time-domain Green's function approach becomes more involved when the antennas are not conformal. Furthermore, the human body is irregular in shape and has dispersion properties that are unique. One consequence of this is that we must resort to modeling the antenna network mounted on the body in its entirety, and the number of degrees of freedom (DoFs) can be on the order of billions. Even so, this type of problem can still be modeled by employing a parallel version of the FDTD algorithm running on a cluster. Lastly, we note that the results of rigorous simulation of BANs can serve as benchmarks for comparison with the abundance of measurement data.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.