Optimal Energy Efficiency Power Allocation Alogrithm for Massive MIMO Systems
[1]Lu Yanhui,Miao Panpan,Yang Shouyi.Optimal Energy Efficiency Power Allocation Alogrithm for Massive MIMO Systems[J].Journal of Zhengzhou University (Engineering Science),2017,38(04):65-68.[doi:10.13705/j.issn.1671-6833.2017.01.022]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
38
Number of periods:
2017 04
Page number:
65-68
Column:
Public date:
2017-07-18
- Title:
- Optimal Energy Efficiency Power Allocation Alogrithm for Massive MIMO Systems
- CLC:
- -
- 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.
- References:
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