郑州大学学报（工学版）2017，Vol.38Issue(4)：65-68,4.DOI:10.13705/j.issn.1671-6833.2017.01.022
大规模MIMO系统中功率分配算法的能效研究
Optimal Energy Efficiency Power Allocation Alogrithm for Massive MIMO Systems
摘要
Abstract
In order to improve the energy efficiency of massive multi-input multi-output(MU-MIMO) downlink systems,the power among users was not allocated equally.The pseudo-concavity of the energy efficiency function with respect to the power of the user allocation was derived through the analysis of energy efficiency function.An optimal power allocation alogrirhm was proposed.Because of the large number of base station antenna in MIMO,the power consumption of radio frequency chain could not be ignored.Thus a new power assumption model was put forward,while both the power of the user allocation and circuit power consumption were considered.Based on this model,the influence of the power of the user allocation on the total power consumption as well as energy efficiency was analysed.By exploiting the pseudo-concavity of the energy efficiency function with respect to the power of the user allocation,an optimal energy-efficiency power allocation algorithm was proposed.Finally,a detailed energy efficiency performance comparison was made between the proposed power allocation algorithm and the power allocation.The simulation results showed that the proposed algorithm could effectively improve the energy efficiency of the MIMO systems.关键词
MIMO/能效/功耗/功率分配算法Key words
MIMO/energy efficiency/power assumption/power allocation algorithm分类
信息技术与安全科学引用本文复制引用
陆彦辉,苗盼盼,杨守义..大规模MIMO系统中功率分配算法的能效研究[J].郑州大学学报（工学版）,2017,38(4):65-68,4.基金项目
国家自然科学基金资助项目(61271421,52110295) （61271421,52110295）
