QoS-Aware Power Allocation Scheme for Relay Satellite Networks

被引：0
|
作者：
Yu J. [1 ,2 ]
Tang X. [1 ,2 ]
Zhu S. [1 ,2 ]
Sun H. [1 ,2 ]
Zhong L. [1 ,2 ]
Yang G. [1 ,2 ]
机构：
[1] Graduate School, Space Engineering University, Beijing
[2] School of Space Information, Space Engineering University, Beijing
来源：
Journal of Beijing Institute of Technology (English Edition) | 2021年 / 30卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Cooperative transmission; Power allocation; Quality of service; Relay satellite network;
D O I：
10.15918/j.jbit1004-0579.2021.005
中图分类号：
学科分类号：
摘要：
This paper investigated a QoS-aware power allocation for relay satellite networks. For the given QoS requirements, we analyzed the signal model of relay transmission and formulated the power minimization problem which is non-convex and difficult to solve. To find the optimal solution to the considered problem, we first analyzed the optimization problem and equivalently turn it into a convex optimization problem. Then, we provided a Lagrangian dual-based method to obtain the closed-form of the power allocation and provided an iterative algorithm to the optimal solution. Moreover, we also extended the results to the cooperative transmission mode. Finally, simulation results were provided to verify the superiority of the proposed algorithm. © 2021 Journal of Beijing Institute of Technology
引用
收藏
页码：82 / 90
页数：8
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