Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental Characterization of In Vivo Wireless Communication Channels   In vivo wireless medical devices have a critical role in healthcare
technologies due to their continuous health monitoring and noninvasive surgery
capabilities. In order to fully exploit the potential of such devices, it is
necessary to characterize the in vivo wireless communication channel which will
help to build reliable and high-performance communication systems. This paper
presents preliminary results of experimental characterization for this
fascinating communications medium on a human cadaver and compares the results
with numerical studies.

13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin