Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/10436E56-9B16-4691-8B33-A9734738B792 | - |
| Αναγνωριστικό | https://doi.org/10.1109/TSP.2009.2034302 | - |
| Γλώσσα | en | - |
| Μέγεθος | 12 pages | en |
| Τίτλος | On the sensitivity of the MIMO Tomlinson-Harashima precoder with respect to channel uncertainties | en |
| Δημιουργός | Liavas Athanasios | en |
| Δημιουργός | Λιαβας Αθανασιος | el |
| Δημιουργός | Tsipouridou ,D | en |
| Εκδότης | Institute of Electrical and Electronics Engineers | en |
| Περίληψη | The multiple-input multiple-output Tomlinson-Harashima (MIMO-TH) precoder is a well-known structure that mitigates interstream interference in flat fading MIMO systems. The MIMO-TH filters are designed by assuming perfect channel state information (CSI) at both the transmitter and the receiver. However, in practice, channel estimates are available instead of the true channels. In this work, we assess the MIMO-TH performance degradation in the cases where the channel estimates are used as if they were the true channels. More specifically, we develop second-order and high-SNR approximations to the excess mean-square error (EMSE) induced by channel uncertainties, uncovering the factors that determine the MIMO-TH performance degradation in practice. Numerical experiments are in agreement with our theoretical developments. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-11-08 | - |
| Ημερομηνία Δημοσίευσης | 2009 | - |
| Βιβλιογραφική Αναφορά | D. Tsipouridou and A. P. Liavas, “On the sensitivity of the MIMO Tomlinson-Harashima precoder with respect to channel uncertainties,” IEEE Trans. Signal Proc., vol. 58,no. 4,pp. 2261 - 2272 , Apr.2010 .doi: 10.1109/TSP.2009.2034302 | en |
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