Performance evaluation on FPGA-implemented UWB-IR receiver for in-body to out-of-body communication systems

Abstract

In order to design 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 communication 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 good communication performance with few FPGA slices. Moreover, the evaluation results in the liquid phantom experiment show 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.

Design and performance analysis of human body communication digital transceiver for wireless body area network applications

“…This section gives an overview of the review of the existing HBC system methods and their analysis. Shimizu et al [11] present the FPGA-based ultra-wideband (UWB) based impulse radio (IR) receiver module for in-out body communication. The UWB-IR RX module contains a synchronization unit, frequency downconverter with a filtering and detection module.…”