Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
EN
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EL
| URI: | http://purl.tuc.gr/dl/dias/8F5288D2-7CCE-4643-99F5-778F43314D00 | ||
| Έτος | 2001 | ||
| Τύπος | Πλήρης Δημοσίευση σε Συνέδριο | ||
| Άδεια Χρήσης |
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| Βιβλιογραφική Αναφορά | A.P. Liavas, "Robustness of the finite-length MMSE-DFE with respect to channel and second-order statistics estimation errors," in 2011 Statistical Signal Processing, 2001. Proceedings of the 11th IEEE Signal Processing Workshop on, doi: 10.1109/SSP.2001.955345 https://doi.org/10.1109/SSP.2001.955345 | ||
| Εμφανίζεται στις Συλλογές |
The filters constituting the minimum mean square error decision-feedback equalizer (MMSE-DFE), as well as related performance measures, can be computed by assuming perfect knowledge of the channel impulse response and the input and noise second-order statistics (SOS). In practice, we estimate the unknown channel and SOS, and inevitable estimation errors arise. We model estimation errors as small perturbations, i.e., of order ε, with ε a sufficiently small positive number, and we study the behavior of the MMSE-DFE under mismatch by performing a first-order perturbation analysis. We prove that the excess MSE induced by O(ε) estimation errors is O(ε 2), uncovering important robustness properties associated with the MMSE-DFE
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