Low complexity receiver for UWB weighted-transmitted reference system

Recently, a novel single user weighted-transmitted reference (WTR) system has been proposed for high data rate ultra-wideband (UWB) communications. The WTR system not only achieves a superior performance but also supports high data rates and is robust to variations of both weighting coefficient and integration interval. Furthermore, it extremely reduces the sampling rate in comparison to the existing TR systems. To benefit from these advantages at a much reduced complexity along with a much smoother spectrum, in this paper, a modified WTR (MWTR) is proposed. The performance of the proposed receiver is evaluated over realistic dense multipath fading channels at 114Mbps in the presence of inter-block interference (IBI) of all previous blocks for the first time. Closed-form representation of the proposed receiver is derived and validated by simulations, taking into account noise, inter-path/pulse interference (IPaI/IPI), inter-symbol interference (ISI), and IBI.