Effect of Channel Estimation Error on Time Reversal UWB Communication System

In this paper, effects of channel estimation error on time reversal (TR) UWB systems are investigated. In time reversal, a signal is prefiltered by using a time reversed complex conjugate of the channel impulse response as a transmitter prefilter. To investigate the effect of channel estimation erro...

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Veröffentlicht in:Wireless personal communications 2013, Vol.68 (2), p.433-439
Hauptverfasser: Abbasi-Moghadam, Dariush, Tabataba Vakili, Vahid
Format: Artikel
Sprache:eng
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Zusammenfassung:In this paper, effects of channel estimation error on time reversal (TR) UWB systems are investigated. In time reversal, a signal is prefiltered by using a time reversed complex conjugate of the channel impulse response as a transmitter prefilter. To investigate the effect of channel estimation error, an error function is added to TR-UWB prefilter. Analytical and simulation results show that channel estimation error degrade the performance. The signal-to-interference plus noise ratio decreases with increasing error variance. It is shown that the channel performance is degraded about 0.5 dB in CM1 and 1.3 dB in CM4 channel.
ISSN:0929-6212
1572-834X
DOI:10.1007/s11277-011-0460-y