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基于NOMA系统的上行链路功率分配
梁燕, 李莉, 彭张节, 符凤婷
上海师范大学 信息与机电工程学院, 上海 201418
摘要:
为解决用户速率化前提下的能效优化问题,针对非正交多址接入(NOMA)系统上行链路,提出了基于Dinkelbach算法的最佳功率分配方案.仿真结果显示:当给定用户发射功率最大限值为15 dBm时,系统的能效提升了38 bit·J-1·Hz-1.
关键词:  非正交多址接入(NOMA)  能效  Dinkelbach算法  功率分配
DOI:10.3969/J.ISSN.1000-5137.2020.01.006
分类号:TN929.5
基金项目:国家自然科学基金(61701307);上海市自然科学基金(19ZR1437600)
Uplink power allocation based on non-orthogonal multiple access system
LIANG Yan, LI Li, PENG Zhangjie, FU Fengting
College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 201418, China
Abstract:
In view of the non-orthogonal multiple access(NOMA) system uplink,an optimal power allocation scheme based on the Dinkelbach algorithm was proposed in order to solve the energy efficiency optimization problem under the premise of ensuring the minimum user rate requirement.Simulation results showed that when the maximum user transmit power limit was set as 15 dBm,the energy efficiency of system was improved by 38 bit·J-1·Hz-1.
Key words:  non-orthogonal multiple access (NOMA)  energy efficiency  Dinkelbach algorithm  power allocation