Two-way relay assisted non-orthogonal multiple access
The use of two-way relaying in infrastructure network to support both downlink and uplink has not been considered in existing literature on cooperative non-orthogonal multiple access (NOMA). This paper proposes a novel cooperative NOMA that uses two-way relaying with analog network coding to improve...
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| Format: | Article |
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Elsevier B.V.
2019
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| _version_ | 1796864779447435264 |
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| author | Ho, Chun Yeen Leow, Chee Yen Ding, Zhiguo |
| author_facet | Ho, Chun Yeen Leow, Chee Yen Ding, Zhiguo |
| author_sort | Ho, Chun Yeen |
| collection | ePrints |
| description | The use of two-way relaying in infrastructure network to support both downlink and uplink has not been considered in existing literature on cooperative non-orthogonal multiple access (NOMA). This paper proposes a novel cooperative NOMA that uses two-way relaying with analog network coding to improve the data rates of the users and the base station in an infrastructure based information exchange scenario, without utilizing additional channel resource. Analytical results on uplink and downlink ergodic rates are derived. In order to guarantee the rate of the proposed scheme always surpasses the orthogonal multiple access (OMA) scheme, a power allocation region is derived. Simulation and analytical results show that the proposed scheme achieves better sum rates when compared to the OMA scheme and existing cooperative NOMA scheme. |
| first_indexed | 2024-03-05T20:46:57Z |
| format | Article |
| id | utm.eprints-89188 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:46:57Z |
| publishDate | 2019 |
| publisher | Elsevier B.V. |
| record_format | dspace |
| spelling | utm.eprints-891882021-01-26T08:49:36Z http://eprints.utm.my/89188/ Two-way relay assisted non-orthogonal multiple access Ho, Chun Yeen Leow, Chee Yen Ding, Zhiguo TK Electrical engineering. Electronics Nuclear engineering The use of two-way relaying in infrastructure network to support both downlink and uplink has not been considered in existing literature on cooperative non-orthogonal multiple access (NOMA). This paper proposes a novel cooperative NOMA that uses two-way relaying with analog network coding to improve the data rates of the users and the base station in an infrastructure based information exchange scenario, without utilizing additional channel resource. Analytical results on uplink and downlink ergodic rates are derived. In order to guarantee the rate of the proposed scheme always surpasses the orthogonal multiple access (OMA) scheme, a power allocation region is derived. Simulation and analytical results show that the proposed scheme achieves better sum rates when compared to the OMA scheme and existing cooperative NOMA scheme. Elsevier B.V. 2019-09 Article PeerReviewed Ho, Chun Yeen and Leow, Chee Yen and Ding, Zhiguo (2019) Two-way relay assisted non-orthogonal multiple access. Computer Communications, 145 . pp. 335-344. ISSN 0140-3664 http://dx.doi.org/10.1016/j.comcom.2019.07.012 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Ho, Chun Yeen Leow, Chee Yen Ding, Zhiguo Two-way relay assisted non-orthogonal multiple access |
| title | Two-way relay assisted non-orthogonal multiple access |
| title_full | Two-way relay assisted non-orthogonal multiple access |
| title_fullStr | Two-way relay assisted non-orthogonal multiple access |
| title_full_unstemmed | Two-way relay assisted non-orthogonal multiple access |
| title_short | Two-way relay assisted non-orthogonal multiple access |
| title_sort | two way relay assisted non orthogonal multiple access |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| work_keys_str_mv | AT hochunyeen twowayrelayassistednonorthogonalmultipleaccess AT leowcheeyen twowayrelayassistednonorthogonalmultipleaccess AT dingzhiguo twowayrelayassistednonorthogonalmultipleaccess |