Title | Efficient BER evaluation of linear multiuser detectors with imperfect channel estimation for CDMA fading channels |
Publication Type | Journal Article |
Year of Publication | 2006 |
Authors | Ma, Y., R. Schober, S. Pasupathy, and T. J. Lim |
Journal | Communications, IEEE Transactions on |
Volume | 54 |
Pagination | 242 - 250 |
Date Published | feb. |
ISSN | 0090-6778 |
Keywords | BER evaluation, bit error rate, CDMA fading channels, channel estimation, channel state information, code division multiple access, data-aided channel estimation, diversity reception, doubly selective Rician-fading channels, error statistics, imperfect channel estimation, linear coherent multiuser receivers, linear multiuser detectors, Markov chain, Markov processes, multiuser detection, Rician channels, steady-state analysis |
Abstract | In this paper, we present a unified mathematical framework to analyze the bit-error rate (BER) performance of general linear coherent multiuser receivers with diversity reception and imperfect channel estimation for doubly selective Rician-fading asynchronous code-division multiple-access channels. BERs of linear receivers with channel state information and data-aided channel estimation are analyzed, and both exact and low-complexity approximate BER evaluation formulas are presented. Furthermore, by using a Markov chain steady-state analysis, a tight BER approximation for receivers with decision-directed channel estimation is proposed. Numerical and simulation results verify the accuracy of the proposed BER evaluation methods. |
URL | http://dx.doi.org/10.1109/TCOMM.2005.863775 |
DOI | 10.1109/TCOMM.2005.863775 |