bit error rate curves for spatial multiplexing dual polarized MIMO ?

salam alikom all

I just want to find any thesis, paper, or any tutorial that shows bit error rate curves for spatial multiplexing dual polarized MIMO for different cross polarization discrimination (XPD) parameters as I searched for them, but I didn't find any thing

can you please give me or just send me in a private message any thing related to my request

thanks in advance

salam alikom