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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Bibliographic Details
Published in:Wireless personal communications 2013, Vol.68 (2), p.433-439
Main Authors: Abbasi-Moghadam, Dariush, Tabataba Vakili, Vahid
Format: Article
Language:English
Subjects:
Applied sciences
Channels
Communications Engineering
Computer Communication Networks
Degradation
Engineering
Error analysis
Errors
Exact sciences and technology
Filters
Networks
Noise levels
Prefilters
Radiocommunications
Signal,Image and Speech Processing
Telecommunications
Telecommunications and information theory
Ultrawideband
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Summary: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