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http://dx.doi.org/10.7840/kics.2015.40.2.307

DFT-Based Channel Estimation Scheme for the Uplink of LTE-A Systems  

Kim, Kyung Jun (School of Electrical and Electronic Engineering, Yonsei University)
Choi, Kyung Jun (School of Electrical and Electronic Engineering, Yonsei University)
Kim, Kwang Soon (School of Electrical and Electronic Engineering, Yonsei University)
Abstract
In this letter, a DFT-based channel estimator is proposed for the uplink of LTE-A systems to solve the leakage and enhance the spectral efficiency. It is confirmed that the proposed estimator can significantly improve user and cell spectral efficiencies compared to conventional estimators.
Keywords
channel estimation; LTE-A; MIMO-OFDM; MU-MIMO;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 3GPP, Evolved Universal Terrestrial Radio Access, Physical channels and modulation, 3GPP TS 36.211 v11.0.0, Oct. 2012.
2 B. Shim and B. Lee, "Evolution of MIMO technology," J. KICS, vol. 38, no. 8, pp. 712-723, Aug. 2013.
3 M. Zhou, B. Jiang, T. Li, W. Zhong, and X. Gao, "DCT-based channel estimation techniques for LTE uplink," in Proc. IEEE PIMRC, pp. 1034-1038, Tokyo, Japan, Sept. 2009.
4 K. J. Kim, H. G. Hwang, K. J. Choi, and K. S. Kim, "Low-complexity DFT-based channel estimator with leakage nulling for OFDM systems," IEEE Commun. Lett., vol. 18. no. 3, pp. 415-418, Mar. 2014.   DOI   ScienceOn