S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Electrical and Computer Engineering (전기·정보공학부) Others_전기·정보공학부
Fast training of fractionally-spaced modified decision feedback equalizer in slow frequency selective fading channels
- Lee, Heechoon; Hong, Syukkyun; Lee, Kwang-Bok; Lee, Yong-Hwan
- Issue Date
- VTC Spring 2002. IEEE 55th Vehicular Technology Conference, vol. 4, pp. 1694-1698, 2002
- To reduce the equalizer training time with robustness to the timing phase error in fixed wireless channels, we propose a fractionally-spaced modified DFE (FS-MDFE) scheme. The proposed FS-MDFE is an extension of the previously proposed symbol-spaced modified DFE (SS-MDFE) (see Ariyavisitakul, S. and Greenstein, L.J., IEEE J. Select. Areas Commun., vol.15, no.1, p.5-15, 1997). The performance of the FS-MDFE is analytically evaluated in terms of the mean squared error. The optimum MMSE solution is derived for initialization of the feedforward filter of the MDFE. We also propose a simplified initialization method to reduce the implementation complexity.
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