Abstract
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.
| Original language | English |
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| Title of host publication | 2020 IEEE Global Communications Conference (GLOBECOM) |
| Publisher | IEEE |
| ISBN (Electronic) | 9781728182988 |
| ISBN (Print) | 9781728182995 |
| DOIs | |
| Publication status | Published - Dec 2020 |
| Event | 2020 IEEE Global Communications Conference (GLOBECOM 2020) - Taipei International Convention Center (8–10 Dec: In-person; 7-11 Dec: Virtual), Taipei, Taiwan, China Duration: 7 Dec 2020 → 11 Dec 2020 https://edas.info/web/gc2020workshop-qcit/index.html |
Publication series
| Name | IEEE Global Communications Conference, GLOBECOM - Proceedings |
|---|---|
| ISSN (Print) | 1930-529X |
| ISSN (Electronic) | 2576-6813 |
Conference
| Conference | 2020 IEEE Global Communications Conference (GLOBECOM 2020) |
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| Abbreviated title | GLOBECOM 2020 |
| Place | Taiwan, China |
| City | Taipei |
| Period | 7/12/20 → 11/12/20 |
| Internet address |
Research Keywords
- Non-orthogonal multiple access (NOMA)
- spherical code
- user pairing