IEEE/ICACT20240369 Slide.10        [Big Slide]       [YouTube] Oral Presentation
It is assumed that all users transmit the same amplitude of the information signal and the noise power has been normalized. At this point the transmit SNR can be defined as the first formula£¬Based on the fact that z0 is a complex Gaussian vector and the nature of its complex Gaussian distribution remains after its western transformation, the covariance matrix of the interference plus noise term can be given as the second formula,then the BCCB part of Eq. is a block cyclic matrix with the same diagonal elements as the third formula.

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