Date of Publication :11th October 2017

Abstract: Non-Orthogonal Multiple Access(NOMA) is one of the promising radio access techniques for performance enhancement in next-generation cellular communications. NOMA offers a set of desirable benefits including high spectral efficiency. Beamforming (BF) is a signal processing technique used in various wireless systems for directional communications. The integration of both NOMA with multiuser BF(NOMA-BF) has the potential to capture the benefits of both NOMA and BF. NOMA with beamforming can exploit the power domain as well as spatial domain to increase spectral efficiency. NOMA-BF system improves the sum capacity, compared to conventional multiuser beamforming system. Due to beamforming, signals from one cluster to the other are suppressed. This paper discusses the performance of NOMA when it is integrated with beamforming techniques

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