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      Impact of User Pairing on 5G Nonorthogonal Multiple-Access Downlink Transmissions

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          Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels

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            Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective

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              Is Open Access

              On the Performance of Non-Orthogonal Multiple Access in 5G Systems with Randomly Deployed Users

              In this letter, the performance of non-orthogonal multiple access (NOMA) is investigated in a cellular downlink scenario with randomly deployed users. The developed analytical results show that NOMA can achieve superior performance in terms of ergodic sum rates; however, the outage performance of NOMA depends critically on the choices of the users' targeted data rates and allocated power. In particular, a wrong choice of the targeted data rates and allocated power can lead to a situation in which the user's outage probability is always one, i.e. the user's targeted quality of service will never be met.
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                Author and article information

                Journal
                IEEE Transactions on Vehicular Technology
                IEEE Trans. Veh. Technol.
                Institute of Electrical and Electronics Engineers (IEEE)
                0018-9545
                1939-9359
                August 2016
                August 2016
                : 65
                : 8
                : 6010-6023
                Article
                10.1109/TVT.2015.2480766
                b32961c1-5ced-4677-8937-bbf857b8335f
                © 2016
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