Power Allocation in Distributed Satellite Cluster Downlink Based on Energy Efficiency

被引：0
|
作者：
Wang W.-L. [1 ]
Zhao S.-H. [1 ]
Li Y.-J. [1 ]
机构：
[1] Institute of Information and Navigation, Air Force Engineering University, Xi'an, 710077, Shaanxi
来源：
Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2020年 / 48卷 / 06期
关键词：
Convex optimization; Distributed satellite cluster network; Energy efficiency; Multi-beam satellite; Satellite communications; Satellite-terrestrial link; Space network architecture;
D O I：
10.3969/j.issn.0372-2112.2020.06.019
中图分类号：
学科分类号：
摘要：
Aiming at the problem of scarcity of on-board resources and low energy utilization efficiency in multi-beam satellite communication system, this paper proposed the power allocation algorithm in distributed satellite cluster network downlink considering both system power consumption and data rate. And the energy efficiency of the system is optimized by reasonable resource allocation. First we built distributed satellite cluster power allocation model and transformed the problem of fractional form to simple subtractive form. Then based on convex optimization, the power-data rate trade off power allocation algorithm is proposed, and the trade-off between energy efficiency(EE) and spectral efficiency(SE) is discussed. The numerical results validate the effectiveness of the proposed algorithm and the EE-SE tradeoff, and the influence of circuit power on system performance is also analyzed. © 2020, Chinese Institute of Electronics. All right reserved.
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页码：1177 / 1181
页数：4
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