QoS-Aware Power Allocation Scheme for Relay Satellite Networks  

作　　者：Jin’ao Yu Xiaogang Tang Shibing Zhu Haopeng Sun Lunxin Zhong Guangyu Yang 

机构地区：[1]School,Space Engineering University,Beijing 101416,China [2]School of Space Information,Space Engineering University,Beijing 101416,China

出　　处：《Journal of Beijing Institute of Technology》2021年第1期82-90,共9页北京理工大学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.62027801)。

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.

关 键 词：power allocation relay satellite network quality of service cooperative transmission 

分 类 号：V474.22[航空宇航科学与技术—飞行器设计]