1 Correction
In the original publication [1] were several parts incorrect. The corrected versions can be found below. The original article has been updated to rectify these errors.
Equation 3:
![figure a](http://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs13638-018-1055-z/MediaObjects/13638_2018_1055_Figa_HTML.gif)
Equation 4:
![figure b](http://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs13638-018-1055-z/MediaObjects/13638_2018_1055_Figb_HTML.gif)
Paragraph under Proposed Channel Estimator:
The proposed estimator for _ik makes the acquisition of inter-cell large-scale fading coefficients unnecessary. The task of gaining knowledge of those coefficients may be unjustifiable in practice due to the excessive, e.g., in case there are L cells serving K users in each one of them, each BS needs to acquire (L – 1)K inter-cell large-scale coefficients.
![figure c](http://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs13638-018-1055-z/MediaObjects/13638_2018_1055_Figc_HTML.gif)
Paragraph and equations under Remark 3:
![figure d](http://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs13638-018-1055-z/MediaObjects/13638_2018_1055_Figd_HTML.gif)
Figure 3
Paragraph under Numerical Results and Discussion.
![figure e](http://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs13638-018-1055-z/MediaObjects/13638_2018_1055_Fige_HTML.gif)
![figure f](http://media.springernature.com/lw685/springer-static/image/art%3A10.1186%2Fs13638-018-1055-z/MediaObjects/13638_2018_1055_Figf_HTML.gif)
Reference
FAP de Figueiredo, Channel estimation for massive MIMO TDD systems assuming pilot contamination and flat fading. EURASIP J. Wirel. Commun. Netw. 2018, 14 (2018) https://doi.org/10.1186/s13638-018-1021-9.
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The online version of the original article can be found at https://doi.org/10.1186/s13638-018-1021-9
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de Figueiredo, F.A.P., Cardoso, F.A.C.M., Moerman, I. et al. Correction to: Channel estimation for massive MIMO TDD systems assuming pilot contamination and flat fading. J Wireless Com Network 2018, 56 (2018). https://doi.org/10.1186/s13638-018-1055-z
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DOI: https://doi.org/10.1186/s13638-018-1055-z