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In order to satisfy rate requirement in the enhanced mobile broadband (eMBB) application group, wireless technologies as Air Interfaces (AI) are widely studied, including non-orthogonal multiple access (NOMA) and massive multiple-input multiple-output (mMIMO). In this paper, we propose a Minorization-Maximization (MM) based hybrid precoding scheme in NOMA-mMIMO system. Firstly, we introduce a user...
In this letter, we propose a novel symbol-asynchronous non-orthogonal multiple access (ANOMA) scheme for downlink transmissions. First, ANOMA introduces an artificial symbol-offset between packets destined for different user equipment (UE) in order to reduce their mutual interference. Second, ANOMA adopts a pre-coding at the base station and a whitening-and-decomposing (WD) detection scheme at the...
Non-orthogonal multiple access (NOMA) is an emerging technology that can improve system spectral efficiency. In this paper, we propose a downlink multiple-input-multiple- output (MIMO) wireless system that incorporates NOMA. To make the system model more realistic, error propagation in successive interference cancellation (SIC) is considered during the decoding process. We formulate an optimization...
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