Effect of Channel Estimation Error on Time Reversal UWB Communication System

Authors:
Dariush Abbasi-Moghadam;Vahid Tabataba Vakili
Affiliations:
Electrical Engineering Department, Shahid Bahonar University of Kerman, Kerman, Iran;Department of Telecommunications, School of Electrical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
Venue:
Wireless Personal Communications: An International Journal
Year:
2013

Citing 2
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Abstract

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.