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.
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Abbasi-Moghadam, D., Tabataba Vakili, V. Effect of Channel Estimation Error on Time Reversal UWB Communication System. Wireless Pers Commun 68, 433–439 (2013). https://doi.org/10.1007/s11277-011-0460-y
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DOI: https://doi.org/10.1007/s11277-011-0460-y