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Performance of SC-FDE system in UWB communications with imperfect channel estimation

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2 Author(s)
Yue Wang ; Advanced Wireless Research Group at Toshiba Research Europe Ltd., Bristol, UK, BS1 4ND ; Xiaodai Dong

Single carrier block transmission with frequency domain equalization (SC-FDE) has been shown to be a promising candidate in ultra-wideband (UWB) communications. In this paper, we analyze the performance of SC-FDE over UWB communications with channel estimation error. The probability density functions of the frequency domain minimum mean-squared error (MMSE) equalizer taps are derived in closed form. The error probabilities of single carrier block transmission with frequency domain MMSE equalization under imperfect channel estimation are presented and evaluated numerically. Compared with the simulation results, our semi-analytical analysis yields fairly accurate bit error rate performance, thus validating the use of the Gaussian approximation method in the performance analysis of the SC-FDE system with channel estimation error.

Published in:

Journal of Communications and Networks  (Volume:9 ,  Issue: 4 )