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- W2046200901 abstract "The decision feedback equalizer is well known to outperform a linear equalizer in highly frequency-selective fading channels. In this paper, we develop a low-complexity Adaptive Frequency Domain Decision Feedback Equalizer (AFD-DFE) for Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems. Both the feedforward and feedback filters operate in the frequency-domain and are adapted using the block Recursive Least Squares (RLS) algorithm. Since this DFE design operation is performed entirely in the frequency-domain, the complexity of the block RLS algorithm can be reduced substantially when compared to its time-domain counterpart by exploiting matrix structure in the frequency-domain. We also show that the RLS-based AFD-DFE not only enjoys a significant reduction in computational complexity when compared to the frequency-domain non-adaptive channel-estimate-based MMSE-DFE but its performance is also better than that of the practical MMSE DFE (with decision errors) and close to the ideal MMSE DFE (with correct decisions)." @default.
- W2046200901 created "2016-06-24" @default.
- W2046200901 creator A5016405871 @default.
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- W2046200901 date "2014-11-01" @default.
- W2046200901 modified "2023-09-27" @default.
- W2046200901 title "RLS-based frequency-domain DFE for uplink SC-FDMA" @default.
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- W2046200901 doi "https://doi.org/10.1109/acssc.2014.7094609" @default.
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