FPGA implemention of UWB-IR receiver for in-body to out-of-body communication performance evaluation

For designing an optimized transceiver structure of ultra wideband (UWB) transmission in in-body to out-of-body communications, it is necessary to make the transceiver structure be easily adjustable in order to realize a good communication performance in an experimental environment. For this purpose, we first implement our develop UWB-impulse radio (IR) receiver structure for the in-body to out-of-body communication in a field programmable gate array (FPGA) board, and evaluate the fundamental performance of the FPGA-implemented UWB-IR receiver by a biological-equivalent liquid phantom experiment. The FPGA configuration results indicate that our FPGA realization of the UWB-IR receiver has accomplished quite few FPGA slices without any communication performance degradation. Moreover, the evaluation result in the liquid phantom experiment shows that the FPGA-implemented UWB-IR receiver can achieve a bit error rate (BER) of 10^-3 up to a communication distance of 70 mm with ensuring a high data rate of 2 Mbps.