Regularized linear equalization for multipath channels with imperfect channel estimation
J. Tong, P.J. Schreier, in: Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process., 2012, pp. 3009–3012.
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Author
Tong, Jun;
Schreier, Peter J.
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Abstract
This paper deals with different techniques for linear equalization (LE) of multipath channels with imperfect channel estimation (CE). We develop a unified framework based on Krylov subspace expansion, which allows us to compare the performance of the conjugate gradient (CG) method, diagonal loading (DL), and a hybrid scheme. Our analysis shows that the DL method generally outperforms its alternatives, but at the cost of higher complexity. However, we also demonstrate that a proper implementation of the low-complexity CG method can also approach the performance of DL. Finally, we show that preconditioning degrades performance when the CE is poor.
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Proceedings Title
Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.
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3009–3012
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Tong J, Schreier PJ. Regularized linear equalization for multipath channels with imperfect channel estimation. In: Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process. ; 2012:3009–3012. doi:10.1109/ICASSP.2012.6288548
Tong, J., & Schreier, P. J. (2012). Regularized linear equalization for multipath channels with imperfect channel estimation. Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process., 3009–3012. https://doi.org/10.1109/ICASSP.2012.6288548
@inproceedings{Tong_Schreier_2012, title={Regularized linear equalization for multipath channels with imperfect channel estimation}, DOI={10.1109/ICASSP.2012.6288548}, booktitle={Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.}, author={Tong, Jun and Schreier, Peter J.}, year={2012}, pages={3009–3012} }
Tong, Jun, and Peter J. Schreier. “Regularized Linear Equalization for Multipath Channels with Imperfect Channel Estimation.” In Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process., 3009–3012, 2012. https://doi.org/10.1109/ICASSP.2012.6288548.
J. Tong and P. J. Schreier, “Regularized linear equalization for multipath channels with imperfect channel estimation,” in Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process., 2012, pp. 3009–3012, doi: 10.1109/ICASSP.2012.6288548.
Tong, Jun, and Peter J. Schreier. “Regularized Linear Equalization for Multipath Channels with Imperfect Channel Estimation.” Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process., 2012, pp. 3009–3012, doi:10.1109/ICASSP.2012.6288548.
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