| 非正交多址接入系统下行链路簇内用户数最大化研究 |
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| 引用本文： | 冯郑慧,李莉,林振,彭张节.非正交多址接入系统下行链路簇内用户数最大化研究[J].上海师范大学学报(自然科学版),2019,48(1):13-19. |
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| 作者姓名： | 冯郑慧 李莉 林振 彭张节 |
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| 作者单位： | 上海师范大学信息与机电工程学院;东南大学信息与工程学院移动通信国家重点实验室 |
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| 基金项目： | 国家自然科学基金青年科学基金（61701307） |
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| 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.
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| 关 键 词： | 非正交多址接入(NOMA) 功率分配 用户配对 |
| 收稿时间： | 2018/10/9 0:00:00 |
Research on maximum number of users in downlink cluster of non-orthogonal multiple access system |
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| FENG Zhenghui,LI Li,LIN Zhen and PENG Zhangjie.Research on maximum number of users in downlink cluster of non-orthogonal multiple access system[J].Journal of Shanghai Normal University(Natural Sciences),2019,48(1):13-19. |
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| Authors: | FENG Zhenghui LI Li LIN Zhen and PENG Zhangjie |
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| Institution: | College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China,College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China,College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China and College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China;National Mobile Communication Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing 211189, Jiangsu, China |
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| 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. |
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| Keywords: | non-orthogonal multiple access(NOMA) power allocation user pairing |
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