Effect of body positions and movements in a capacitive intrabody communication channel from 100 kHz to 100 MHz

Intrabody communication (IBC) uses the human body as a signal transmission medium. In this paper we examine the influence of body positions and movements of different test subjects on the capacitive intrabody channel transmission characteristics at 1 MHz, 10 MHz and 40 MHz by comparing the mean value and interquartile range of the gain for different combinations of the influential factors. We showed that up to 10 MHz variations in the gain among different test subjects and the variations caused by different body positions and movements of a test subject are comparable, and lower than the variations at 40 MHz.