Channel Capacity Limitations versus Hardware Implementation for UWB Impulse Radio Communications

Aubin Lecointre (1) , Daniela Dragomirescu (1) , Robert Plana (1)

1 LAAS-MINC - Équipe MIcro et Nanosystèmes pour les Communications sans fil

Starting from the Shannon channel capacity, we propose an IR-UWB channel capacity based on the delay spread for multipath time variant channels. This IR-UWB channel capacity is obtained from the no ISI (Inter Symbol Interference) assumption and for binary modulations. The impact of the kind of implementation is considered on the IR-UWB channel capacity. This study is lead for mixed and mostly digital implementation. The key parameters and theirs impacts on the channel capacity are exposed in each case: the data converters for mostly digital implementations and the pulse generator capabilities for mixed implementations. Finally, these two implementations are compared from a data rate point of view. Their behaviors regarding an increase of the operating frequency are also studied.

Domaines: Réseaux et télécommunications [cs.NI]; Electronique; Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Aubin Lecointre, Daniela Dragomirescu, Robert Plana. Channel Capacity Limitations versus Hardware Implementation for UWB Impulse Radio Communications. Romanian Journal of Information Science and Technology, 2009, pp.339-353. ⟨hal-00452693⟩