A Flexible Low Power Subsampling UWB Receiver Based on Line Spectrum Estimation Methods

This paper presents a low power pulsed UWB receiver sampling below Nyquist rate which can accomodate time-varying data rate and quality-of-service requirements for applications communicating via UWB. The performance of pulse amplitude and pulse position modulations is assessed in AWGN and dense multipath environments using the standard IEEE 802.15.3a channel models. The proposed subsampling receiver provides an attractive digital alternative to the classical approach based on analog correlations, and can reach data rates above 100 Mb/s.