Multiuser Detection
Low-complexity multiuser detectors for time-hopping impulse-radio systems
IEEE Transactions on Signal Processing
Performance evaluation of impulse radio UWB systems with pulse-based polarity randomization
IEEE Transactions on Signal Processing
Cyclic prefixed single carrier transmission in ultra-wideband communications
IEEE Transactions on Wireless Communications
Frequency domain detectors for ultra-wideband indoor communications
IEEE Transactions on Wireless Communications
Low Complexity Rake Receivers in Ultra-Wideband Channels
IEEE Transactions on Wireless Communications
Frequency domain equalization for single-carrier broadband wireless systems
IEEE Communications Magazine
Ultra-wideband radio technology: potential and challenges ahead
IEEE Communications Magazine
The ultra-wide bandwidth indoor channel: from statistical model to simulations
IEEE Journal on Selected Areas in Communications
Performance of ultra-wideband communications with suboptimal receivers in multipath channels
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications - Part 1
A time-division multiple-access SC-FDE system with IBI suppression for UWB communications
IEEE Journal on Selected Areas in Communications - Part 1
IEEE Transactions on Signal Processing
| Hi-index | 35.69 |
In this paper, we compare the performance of two different communication techniques for impulse radio ultra-wide-band (UWB) systems, which resort to impulsive modulations. These techniques can be applied in a short-range scenario where a central node synchronously communicates with several peripheral nodes. The first one is based on the pulse repetition according to the spreading factor value, whereas the second one relies on the cyclic prefix insertion and the detection in the frequency domain (FD). Since both techniques cause a throughput loss, they have to be compared both in terms of the performance and the maximum data rate that is afforded. An indoor scenario is considered, in which either low- or high-data-rate flows are synchronously transmitted by a central node in the presence of variable system loads. Lastly, alternative detection strategies are also taken into account, which are based on the partial knowledge of the channel parameters. The complexity analysis and simulation results show that the FD approach is effective for high data-rate transmission and in the presence of many data flows, whereas RAKE is more suitable in low-data-rate systems transmitting few data flows.