Optimal soft slicer design for MMSE-DFE

被引：0
|
作者：
Wang, Rujiang [1 ]
Delisle, Gilles Y.
机构：
[1] Univ Laval, Dept Genie Elect & Genie Informat, Quebec City, PQ G1K 7P4, Canada
[2] Inst Int Telecommun, Montreal, PQ H5A 1K6, Canada
来源：
IEEE SIGNAL PROCESSING LETTERS | 2007年 / 14卷 / 12期
关键词：
decision feedback equalizer (DFE); error propagation; inter-symbol interference (ISI); minimum mean-square error (MMSE); slicer;
D O I：
10.1109/LSP.2007.905096
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A technique on optimal decision feedback equalizer (DFE) soft feedback slicer design is proposed in this letter. A soft slicer of M-ary PAM is given as a function of the noise variance at the slicer input. The equalizer mean-square error (MSE), which includes the error propagation effect, is used as the criterion of the optimal soft slicer design. By incorporating the slicer characteristics into the MSE and the assumption of Gaussian noise distribution at the equalizer output, the optimal soft slicer is obtained by minimizing the MSE. Simulation results corroborate the effectiveness of the method.
引用
收藏
页码：912 / 915
页数：4
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