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.
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.
作者
冯郑慧
李莉
林振
彭张节
FENG Zhenghui;LI Li;LIN Zhen;PENG Zhangjie(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)
出处
《上海师范大学学报（自然科学版）》
2019年第1期13-19,共7页
Journal of Shanghai Normal University(Natural Sciences)
基金
国家自然科学基金青年科学基金(61701307)
