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Optimal Design of Resource Element Mapping for Sparse Spreading Non-Orthogonal Multiple Access

Yu, Hanxiao; Fei, Zesong; Yang, Nan; Ye, Neng


We propose a new design of the optimal resource element (RE) mapping patterns to maximize the sum-rate of a sparse spreading non-orthogonal multiple access system. In this system, the grouped users who use the same radio resource have different channel conditions. First, we formulate a sum-rate optimization problem subject to sparsity and power constraints. To solve this non-trivial optimization problem, we transform it to an equivalent penalized problem by deriving the closed-form penalty...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: IEEE Wireless Communications Letters
DOI: 10.1109/LWC.2018.2818157


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