Ultra wideband time hopping systems: performance and throughput enhancement via frequency domain processing

In this work, the authors introduce a high performance, high throughput ultrawideband (UWB) time hopping system based on a multicarrier pulse waveform. Specifically, the authors propose the multicarrier UWB waveform referred to as the carrier interferometry (CI) waveform: the CI waveform corresponds to the superpositioning of N orthogonal subcarriers. At the receiver side, the received UWB pulse is decomposed into its subcarriers and recombined to exploit diversity in the frequency domain. The receiver's frequency domain processing also provides resistance to inter symbol interference. As a result, the proposed frequency-based time-hopping UWB system is shown to support increased throughputs and higher performances when compared to traditional time-based UWB time hopping.