Date of Publication :2nd June 2024

Abstract: This study centres on utilizing Multiple Input Multiple Output (MIMO) technology within communication networks for the construction and evaluation of the Uplink NOMA systems. Enhancing system capacity, reducing bit error rate (BER), and offering a comparison of MIMO and Single Input Single Output (SISO) technologies within the context of Uplink NOMA with MIMO are the main goals. In the suggested Uplink NOMA system, a (base station) BS is equipped with N antennas and using spatial resources it can accommodate 2N users. However, this sharing of spatial resources leads to user interference. Thus, we also suggest a set selection method and spatial multiplexing to increase sum capacity and decrease the interference. The set selection algorithm is used to reduce the interference among users, by selecting 2N users based on the orthogonality and disparity in gains of their channels.

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