Wave-Radio Transceiver in Realistic UWB Fading Channels

The Wave-Radio Interferometer (WRI) circuit has been considered in several test benches previously as a digital modulator/demodulator. However, none of these test benches considered a realistic channel for the aimed application. In this work, the novel design of a Wave-Radio Interferometer (WRI) transceiver is simulated and tested in an impulse-radio ultrawide band (IR-UWB) test bench. To verify the transceiver performance in a realistic UWB fading channel, the IEEE802.15.3a standard set by task group 3 for high-rate wireless-personal area networks (WPANs) has been adopted. Based upon the standard specifications, a MATLAB code has been used to generate the channel model for simulations and measurements. In order to reflect the effect of the UWB realistic wireless channel, the impulse response obtained from the code has been imported to a radio channel emulator. By comparison, the simulation and measurement bit-error rate (BER) results demonstrate that the considered transceiver may operate in the aimed design frequency range (3.1-4.1GHz) with a small degradation of about 2.8 dB. The aforementioned inferior difference can be easily compensated by employing better synchronization techniques or channel coding.