Wireless Body Area Networks (WBANs) promise unobtrusive and cheap interconnections of electronic based sensors, processors and other devices thank to low-profile, compact and easily integrated body worn antennas. The paper, with the combination of animation and electromagnetic software, presents the modelling of human body in motion during normal daily activities such as a walk. Simulations of a walking male at the frequency of 2.45 GHz for two different channels are presented and the results are compared with measurements made in anechoic chamber. However the modelling of body dynamics raises difficulties when simulation of the channels is required.
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