Analysis of Unintentional Signal Propagation in Intra-Body Communication

This paper describes an analysis of unintentional signal propagation in intra-body communication (IBC). IBC might suffer from such unintentional signal, which are caused by both a return path and a normal path. We propose an unintentional signal propagation model based on both of these paths. In this work, we analyze the unintentional signal through experiments and simulations. The signal strength characteristics, as found from the simulation results, were similar to those of the experimental results. Our model is, therefore, confirmed to be adequate. The unintentional signal through the return path is found to be greater than that of the normal path. The design criteria for IBC application are also indicated that may address the unintentional signal problem.