Characterization and capacity evaluation of body-to-body channels using MIMO antennas

A comparison of on-body and body-to-body channels in an indoor high scattered environment is performed through the characterization and the evaluation of the achievable capacity when using a MIMO PIFA array system. For the on-body channels, the belt-head channel offers a better capacity than the belt-chest channel at the high SNR because of its more rich scattering quality. However the presence of a high LOS signal compensates for such a limitation and allows the belt-chest channel to yield a similar capacity as the belt-head channel at low SNR. The body-to-body belt-belt and belt-head channels yield the same capacity values because they exhibit the same statistical parameters. Their average capacity is comparable to the on-body belt-chest channel, which is viable in high-data communications.