Improvement of MISO Single-User Time Reversal Ultra-Wideband Using a DFE Channel Equalizer

Abstract

In this paper a baseband multiple-input single-output (MISO) time reversal ultra-wideband system (TR-UWB) incorporating a decision feedback equalizer (DFE) is evaluated over the scenarios CM1 and CM3 of the IEEE 802.15.3a channel model. A semi-analytical performance based on a Gaussian approximation is derived and compared with simulation results. The results show that such approach represents a good approximation for the bit error rate (BER) analysis, and that the DFE, as well as an increase in the number of transmit antennas, improve the system performance.