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In the future fifth generation (5G) systems, non-orthogonal multiple access (NOMA) is a promising technology that can greatly enhance the network capacity compared to orthogonal multiple access (OMA). In this paper, we propose a novel random access (RA) and resource allocation scheme for the coexistence of NOMA-based and OMA-based machine-to-machine (M2M) communications, which aims at improving the...
Distributed multiple-input multiple-output (DMIMO) system is a combination of distributed antenna systems (DAS) and co-located antenna systems (CAS). Power allocation between different antennas is a very important aspect in both DAS and CAS. In this paper, we investigate the downlink power allocation scheme in D-MIMO systems based on minimum symbol error rate (SER) criteria. We propose a power allocation...
Information theoretical results have shown that Distributed Antenna Systems (DAS) can obtain higher capacity than Co-located Antenna Systems (CAS). In this paper, we investigate a downlink port selection and power allocation scheme in Distributed Multiple-Input Multiple-Output (D-MIMO) systems, where Distributed Antenna (DA) ports randomly locate in the cell. The contribution of this paper can be...
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