Resource Allocation in UAV-NOMA Communication Systems Based on Proportional Fairness  

作　　者：Hui Zhang Baoji Wang Chen Chen Xiang Cheng Hang Li 

机构地区：[1]State Key Laboratory of Advanced Optical Communication Systems and Networks,Department of Electronics,School of Electronics Engineering and Computer Science,Peking University,Beijing 100871,China [2]Shanghai Institute of Microsystem and Information Tech-nology,Chinese Academy of Sciences,Shanghai 200050,China [3]Data-Driven Information System Laboratory,Shenzhen Re-search Institute of Big Data,Shenzhen 518172,China

出　　处：《Journal of Communications and Information Networks》2020年第2期111-120,共10页通信与信息网络学报（英文）

基　　金：This work was supported in part by the Key-Area Research and Development Program of Guangdong Province Project under Grant 2019B010153003;the open research fund of Key Laboratory of Wireless Sensor Network&Communication under Grant 2017003;Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,and the Open Research Fund from Shenzhen Research Institute of Big Data under Grant 2019ORF01006.

摘　　要：This paper investigates the power allocation problem in non-orthogonal multiple access(NOMA)integrated unmanned aerial vehicle(UAV)communication systems.In particular,we propose a novel resource allocation scheme to increase the transmission rate of the users that have relatively worse channel state information,while reducing the sum rate loss.To solve this problem efficiently,we decouple the optimization problem into three subproblems.First,we solve the problem of user pairing and subchannel allocation.Second,the optimum power proportional factor is derived to allocate transmit power among different users on the same subchannel.At last,different subchannels are allocated with appropriate power to improve the performance of the subchannels.Simulation results show that the proposed scheme can enjoy a better performance than the benchmark methods since it can achieve a proper trade-off between the system sum rate and the proportional fairness.

关 键 词：UAV communications NOMA power allo-cation proportional fairness 

分 类 号：TN92[电子电信—通信与信息系统]