Multiuser Time Reversal UWB Communication System: A Modified Transmission Approach

Ijaz Haider Naqvi (1) , Ali Khaleghi (1) , Ghaïs El Zein (2)

1 IETR - Institut d'Electronique et de Télécommunications de Rennes
2 IETR - Institut d'Électronique et des Technologies du numéRique

In this paper, ultra-wideband (UWB), time reversal (TR) communication is investigated by modifying the transmission prefilter. Mathematical expressions for received signal and the interference in the modified transmission scheme are derived. It is shown that the modified transmission approach reduces multi-user interference which eventually translates into a better bit error rate (BER) performance than simple TR multiuser scheme. Channel impulse responses (CIR) of a typical indoor channel are measured. In a multi-user scenario, both TR and the modified TR schemes are studied using the measured CIRs. It is shown that the proposed modified TR scheme outperforms the original TR scheme.

Mots clés: Multiuser; time reversal (TR); dense multipath propagation channel; ultra-wideband (UWB); bit error rate (BER)

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]

Ijaz Haider Naqvi, Ali Khaleghi, Ghaïs El Zein. Multiuser Time Reversal UWB Communication System: A Modified Transmission Approach. The 20th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, (PIMRC 2009), Sep 2009, Tokyo, Japan. pp.1-5. ⟨hal-00448870⟩