Title :
Multiuser time reversal UWB communication system: A modified transmission approach
Author :
Naqvi, I.H. ; Khaleghi, A. ; El Zein, Ghais
Author_Institution :
Inst. of Electron. & Telecommun. of Rennes, IETR-UMR CNRS 6164, Rennes, France
Abstract :
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.
Keywords :
error statistics; indoor radio; ultra wideband communication; BER; UWB communication system; bit error rate; channel impulse responses; indoor channel; modified transmission approach; multiuser time reversal UWB communication; time reversal communication; transmission prefilter; ultra-wideband communication; Bandwidth; Bit error rate; Energy resolution; Fading; Intersymbol interference; Multipath channels; RAKE receivers; Signal resolution; Ultra wideband communication; Ultra wideband technology; Multiuser; bit error rate (BER); dense multipath propagation channel; time reversal (TR); ultra-wideband (UWB);
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5450198
