Performance evaluation of human body communication system for IEEE 802.15 on the effect of human body channel

The root mean square (RMS) delay spread and coherence bandwidth are examined based on measurement for a wide band human body channel. Using the results, the relation between these two wideband channel parameters is evaluated. The inter-symbol interference (ISI) effect on the performance of the frequency selective digital transmission (FSDT) is investigated by modeling the time dispersive human body channel as a finite impulse response (FIR) filter. Then, the compatible required transmitter power is computed for a reliable FSDT communication link.