Please explain decision feedback equalizer for Large MIMO system and also please explain the complexity of the DFE equalizer in the Large MIMO System.
Not sure but you can see the following papers
Y.-C. Liang, S. Sun and C. Ho, Block-iterative Generalized Decision Feedback Equalizers (BI-GDFE) for Large MIMO Systems: Algorithm Design and Asymptotic Performance Analysis, IEEE Trans. Signal Processing, vol.54, No.6, pp.2035-2048, June 2006.
Y.-C. Liang, E.Y. Cheu, L. Bai and G. Pan, On the Relationship Between MMSE-SIC and BI-GDFE Receivers for Large Multiple-Input Multiple-Output Channels, IEEE Trans. Signal Processing, vol.56, No.8, pp.3627-3637, Aug. 2008.
Yes, Sir, I have those papers. I am not able to find any latest development regarding the application of DFE in large MIMO. And also complexity wise is it feasible to use in Large MIMO. Please suggest.
The complexity will of course be larger, so the main question is: can DFE brIng enough gains to outweigh the higher complexity? I am a bit skeptical, but one should also keep in mind that the processors are getting faster and faster so the computation complexity might not be an issue in the future (as long as it scales polynomially in the problem size and not exponentially).
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