Institutional Repository
Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/10436E56-9B16-4691-8B33-A9734738B792 | - |
| Identifier | https://doi.org/10.1109/TSP.2009.2034302 | - |
| Language | en | - |
| Extent | 12 pages | en |
| Title | On the sensitivity of the MIMO Tomlinson-Harashima precoder with respect to channel uncertainties | en |
| Creator | Liavas Athanasios | en |
| Creator | Λιαβας Αθανασιος | el |
| Creator | Tsipouridou ,D | en |
| Publisher | Institute of Electrical and Electronics Engineers | en |
| Content Summary | 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 |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-11-08 | - |
| Date of Publication | 2009 | - |
| Bibliographic Citation | 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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