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Non-orthogonal multiple access (NOMA) is a promising technology for handling massive connectivity in future 5G wireless networks. Even though the spectral efficiency can be promoted, the transmission reliability is sometimes poor, due to the introduced multiple access interference (MAI), and the computational complexity for multiuser detection is usually high in NOMA. To solve this problem, we investigate...
Non-orthogonal multiple access (NOMA) can improve the spectral efficiency of a multi-user system by enabling overload usage of radio resources. To eliminate the multiple access interference, the NOMA usually requires complicated signal processing, which may hinder its practical applications. One promising solution is to design sparse multiple access sequences for the NOMA, and then leverage the message...
Due to limited radio resources, non-orthogonal multiple access (NOMA) is a promising technology to enable massive connectivity in future 5G and beyond wireless networks. However, it suffers from the multiple access interference, which usually requires a high detection complexity to mitigate. In this paper, we consider NOMA with sparse multiple-access sequences, so as to leverage the message passing...
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