IEEE/ICACT20220184 Slide.22        [Big Slide]       Oral Presentation
In DSSS-PDMA communication, all users are assigned to the same band, so the spectral efficiency increases with the number of users. For simplicity, let U be the number of users per power level. We examine the relationship between the spectral efficiency by increasing the number of users to be assigned, that is, by increasing U and M.

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