Pre-Coding Based Compressed Sensing UWB Communication System for Bursty Applications

A pre-coding based compressed sensing (CS) ultra-wideband (UWB) communication system is proposed in this paper. Our major contribution is that we attempt to achieve effective signal measurement required in CS by applying a digital random pre-coding block at the transmitter instead of analog schemes. By exploiting pulse modulation and UWB channel as parts of CS measurement process, signal model from transmitter to receiver is established. Signal reconstruction is discussed and UWB channel estimation is study based on CS theory. Simulation results in IEEE 802.15.3a CM1 channel model show that the proposed system is feasible to detect UWB signals without a very high-frequency analog-to-digital converter (ADC). Moreover, it can operate in a regime of heavy inter-symbol interference (ISI).