Abstract：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.
王蔚龙, 赵尚弘, 李勇军. 基于能量效率的分布式星群下行链路功率分配方法研究[J]. 电子学报, 2020, 48(6): 1177-1181.
WANG Wei-long, ZHAO Shang-hong, LI Yong-jun. Power Allocation in Distributed Satellite Cluster Downlink Based on Energy Efficiency. Acta Electronica Sinica, 2020, 48(6): 1177-1181.
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2020, Vol. 48 
