| 摘要: |
| 针对非正交多址接入系统（NOMA）下行链路，基于系统吞吐量最大化原则，对簇内用户发射功率进行了最优分配，发现簇内用户数过多会导致簇内吞吐量下降，提出了给定吞吐量最小限值条件下簇内用户数最大值的估计方案.仿真结果显示：当给定吞吐量的最小限值为10 Mbit·s-1时，簇中所能包含的最大用户数为4. |
| 关键词: 非正交多址接入(NOMA) 功率分配 用户配对 |
| DOI：10.3969/J.ISSN.1000-5137.2019.01.003 |
| 分类号: |
| 基金项目:国家自然科学基金青年科学基金（61701307） |
|
| Research on maximum number of users in downlink cluster of non-orthogonal multiple access system |
|
FENG Zhenghui1, LI Li1, LIN Zhen1, PENG Zhangjie1,2
|
|
1.College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China;2.National Mobile Communication Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing 211189, Jiangsu, China
|
| Abstract: |
| For the downlink of non-orthogonal multiple access system,by use of the principle of system throughput maximization,the transmission power of intra-cluster users was allocated optimally.However it was discovered that the intra-cluster throughput declined with the excessive number of intra-cluster users.An estimation scheme of the maximum number of intra-cluster users under the given minimum throughput limit was proposed.Simulation results showed that the maximum number of users that could be included in a cluster was 4 when the minimum limit for a given throughput was subjected to 10 Mbit·s-1. |
| Key words: non-orthogonal multiple access(NOMA) power allocation user pairing |
Editorial Board