Transmitted reference UWB wireless receiver based on FFT technique

The UWB system is very widely used in wireless communication, but it's had some challenges such as estimation channel, low power and low complexity. Use the UWB system in wireless communication can be high performance, better BER performance and very low complexity. In this paper, proposed a new system known low complexity transmitted reference ultra-wide band (LC-TR-UWB) based on fast Fourier transform (FFT). This system has advantages such as no need channel estimation and the reference pulse transmitter with data pulse and generate reference locally. This system may be used FFT to convert signals from time domain to frequency domain. Then, cut-off high frequencies that caused confusion the signal and finally use inverse fast Fourier transform (IFFT) to translate from the frequency domain to the time domain. The simulation results show the performance of this system has efficiency, more noise-resistant and BER better performance than previous systems.