Performance Analysis of Cooperative Communication in the UWB Differential Transmitted Reference System

To overcome the limitation of the transmit power spectral density, the cooperative communication in the ultra wideband (UWB) differential transmitted reference system is studied. The amplify-and-forward is used as a relay protocol to re-transmit signals from multi-source terminals to one destination terminal. An adaptive amplification factor based on the channel information between relay and destination nodes is considered. Simulation results reveal that not only its capacity but also the associated bit error probability with adaptive amplification outperforms those with constant amplification.