The wireless channel coefficients are practically correlated neces- sitating the study of wireless networks with correlated channel gains. On the other hand, rate splitting multiple access (RSMA) is a promising strategy to avoid interference in future wireless networks. In this paper, we study the impact of rate splitting multiple access strategy on the outage probability of two-user multiple access channel with correlated coefficients, by utilizing the Farlie-Gumbel-Morgenstern (FGM) copula as a well-known copula function, and show that the performance of RSMA is dependent on rate splitting pa- rameter, and to achieve the best performance, the rate splitting parameter should be on a specific range depending on the information rate thresholds. Numerical results are presented to confirm the theoretical findings

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