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.