Fig. 5From: Rate-splitting multiple access for downlink communication systems: bridging, generalizing, and outperforming SDMA and NOMAAchievable rate region comparison of different strategies in underloaded two-user deployment with perfect CSIT, averaged over 100 random channel realizations, \(\sigma _{1}^{2}=1, \sigma _{2}^{2}=1\), and N t =4. a SNR = 10 dB. b SNR = 20 dBBack to article page