Abstract:A multi-cell cluster-free NOMA framework is proposed, where both intra-cell and inter-cell interference are jointly mitigated via flexible cluster-free successive interference cancellation (SIC) and coordinated beamforming design, respectively. The joint design problem is formulated to maximize the system sum rate while satisfying the SIC decoding requirements and users' data rate constraints. To address this highly complex and coupling non-convex mixed integer nonlinear programming (MINLP), a novel distribute… Show more
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