Abstract | ||
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A novel non-orthogonal multiple access (NOMA) scheme with spherical code superposition and its user pairing strategy are proposed. A transmitter transmits the superposition of the signals of two users, each of which is selected from the high dimensional spherical code on the same time-frequency resource by power-domain multiplexing NOMA. Upper bounds of the word error probabilities of the two users are derived. Based on them, a power allocation scheme for the two users is proposed, which guarantees that their word error probabilities are below a certain threshold. Under our power allocation scheme, the optimal user pairing strategy that minimizes the total power consumption in a general multi-user system is analytically found. Numerical results show that our proposed system outperforms some benchmark methods. |
Year | DOI | Venue |
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2020 | 10.1109/GLOBECOM42002.2020.9322388 | GLOBECOM 2020 - 2020 IEEE Global Communications Conference |
Keywords | DocType | ISSN |
Non-orthogonal multiple access (NOMA),spherical code,user pairing | Conference | 1930-529X |
ISBN | Citations | PageRank |
978-1-7281-8299-5 | 0 | 0.34 |
References | Authors | |
0 | 3 |
Name | Order | Citations | PageRank |
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jun zou | 1 | 10 | 1.78 |
Kenneth W. Shum | 2 | 544 | 56.37 |
Chi Wan Sung | 3 | 779 | 91.41 |