How to Equalize 2 columns I & Q data of the 16 QAM constellation?

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Joined Jul 29, 2021
I need help regarding the I & Q data which I extracted from VPI simulation software. The data is for 16 QAM constellation which is distorted by chromatic dispersion. The data is in 2 columns and have 512 rows. I loaded my Tx and distorted Rx data extracted from VPI simulation software in to LMS equalizer code. And run the algorithm while changing the step size. I got some better constellation points but the equalizer is not converging. I thought maybe the data in 2 columns is the problem. My basic question is how can I equalize this type of data? Maybe some other Matlab algorithm is required to fix it but I am not confirmed. How can I equalize this data so that I have clean constellation after equalization?