Energy-efficient resource allocation based on multi-user massive MIMO system

被引：0
作者：
School of Information Science and Engineering, Southeast University, Nanjing [1 ]
210096, China
不详 [2 ]
212003, China
机构：
[1] School of Information Science and Engineering, Southeast University, Nanjing
[2] Institute of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang
来源：
Dianzi Yu Xinxi Xuebao | / 9卷 / 2198-2203期
关键词：
Energy-efficiency; Massive MIMO; Multi-user; Resource allocation; Uplink system; Wireless communication;
D O I：
10.11999/JEIT150088
中图分类号：
学科分类号：
摘要：
An energy-efficient resource allocation scheme is proposed for multi-user massive MIMO mobile communication uplink system. A mathematical formulation of optimization issue is provided with the objective of maximizing system energy efficiency lower bound under the data rate of user and tolerable interference level constraint, meanwhile the Base Station (BS) uses a Maximum-Ratio Combining (MRC) receiver. By transforming the originally fractional optimization problem into an equivalent subtractive form using the properties of fractional programming, then convex optimization is adopted to maximize the energy efficiency. Specifically, both the numbers of antenna arrays at the BS and the transmit data rate at the user are adjusted. Simulation results show that the energy-efficiency difference between the proposed algorithm and the exhaustive algorithm is less than 9%, at the same time, the performance of spectral-efficiency of the proposed algorithm is very well and the complexity is significantly reduced. ©, 2015, Science Press. All right reserved.
引用
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页码：2198 / 2203
页数：5
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