Resource Allocation Based on User Pairing and Subcarrier Matching for Downlink Non-Orthogonal Multiple Access Networks
文献类型：期刊论文
| 作者 | Zhixin Liu ; Changjian Liang; Yazhou Yuan; Kit Yan Chan; Xinping Guan
|
| 刊名 | IEEE/CAA Journal of Automatica Sinica
 |
| 出版日期 | 2021 |
| 卷号 | 8期号:3页码:679-689 |
| 关键词 | Non-orthogonal multiple access (NOMA) power control rate maximization subcarrier matching user pairing |
| ISSN号 | 2329-9266 |
| DOI | 10.1109/JAS.2021.1003886 |
| 英文摘要 | The traditional orthogonal multiple access (OMA) is unable to satisfy the needs of large number of smart devices. To increase the transmission rate in the limited spectrum resource, implementation of both non-orthogonal multiple access (NOMA) and successive interference cancelation (SIC) is essential. In this paper, an optimal resource allocation algorithm in NOMA is proposed to maximize the total system rate in a multi-sector multi-subcarrier relay-assisted communication network. Since the original problem is a non-convex problem with mixed integer programming which is non-deterministic polynomial-time (NP)-hard, a three-step solution is proposed to solve the primal problem. Firstly, we determine the optimal power allocation of the outer users by using the approach of monotonic discrimination, and then the optimal user pairing is determined. Secondly, the successive convex approximation (SCA) method is introduced to transform the non-convex problem involving central users into convex one, and the Lagrangian dual method is used to determine the optimal solution. Finally, the standard Hungarian algorithm is utilized to determine the optimal subcarrier matching. The simulation results show that resource allocation algorithm is able to meet the user performance requirements with NOMA, and the total system rate is improved compared to the existing algorithms. |
| 源URL | [http://ir.ia.ac.cn/handle/173211/43941]  |
| 专题 | 自动化研究所_学术期刊_IEEE/CAA Journal of Automatica Sinica |
| 推荐引用方式 GB/T 7714 | Zhixin Liu,Changjian Liang,Yazhou Yuan,et al. Resource Allocation Based on User Pairing and Subcarrier Matching for Downlink Non-Orthogonal Multiple Access Networks[J]. IEEE/CAA Journal of Automatica Sinica,2021,8(3):679-689. |
| APA | Zhixin Liu,Changjian Liang,Yazhou Yuan,Kit Yan Chan,&Xinping Guan.(2021).Resource Allocation Based on User Pairing and Subcarrier Matching for Downlink Non-Orthogonal Multiple Access Networks.IEEE/CAA Journal of Automatica Sinica,8(3),679-689. |
| MLA | Zhixin Liu,et al."Resource Allocation Based on User Pairing and Subcarrier Matching for Downlink Non-Orthogonal Multiple Access Networks".IEEE/CAA Journal of Automatica Sinica 8.3(2021):679-689. |
入库方式： OAI收割
来源：自动化研究所
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