Analysis of combined ultra-wideband systems

Ultra-wideband (UWB) radio technology offers a variety of opportunities to fulfill the increasing demands on wireless communication systems. On the one hand, high-speed data transmission can be realized using high data rate (HDR) UWB devices. On the other hand, low-power, low data rate (LDR) devices based on impulse radio can be realized. In this manuscript, the authors present a concept of combining the advantages of both HDR and LDR devices. To reduce the overall power consumption, an HDR can use the LDR physical layer for the transmission of signaling information. Therefore, an adaption layer is proposed which organizes the cooperation between the HDR and the LDR physical layer. The performance of the combined system is discussed as well.