IEEE/ICACT20230157 Slide.07        [Big Slide]       [YouTube] Oral Presentation
Scaled Least square estimation can further reduce the mean square error (MSE) by allowing for bias. Based on the analysis of LS estimation, the channel estimation error of SLS estimation is given by Equation 6. The channel matrix estimated by SLS estimation can be rewritten as Equation 7. We can see that the channel estimation error of the SLS estimation method is lower than that of the LS estimation method.

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