当前位置: X-MOL 学术Telecommun. Syst. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Joint downlink user power allocation and rate maximization in UAV relay assisted SWIPT-NOMA network
Telecommunication Systems ( IF 2.5 ) Pub Date : 2022-09-10 , DOI: 10.1007/s11235-022-00945-8
Jianbin Xue, Junpeng Li, Qingchun Hu

In this paper, in order to improve the performance of wireless fifth generation (5G) communication system and save power consumption, the research objectives of optimal power allocation and maximizing the total user rate in a multi-user cluster in the downlink of non-orthogonal multiple access (NOMA) access system are realized based on the simultaneous wireless information and power transfer (SWIPT). A SWIPT-NOMA system assisted by dynamic unmanned aerial vehicle (UAV) relay is constructed. The UAV relay dynamic programming under two-hop communication was firstly studied, and the global optimal power allocation strategy for downlink users of SWIPT-NOMA system is found. Finally, the optimal relay selection algorithm was used to maximize the total user rate, which was verified by Monto Carlo simulation. Simulation results show that compared with the traditional FDMA system scheme, the performance of the proposed system model in terms of outage probability, energy consumption and total user rate of multi-user cluster deployed in dynamic UAV relay system under different distribution scenarios is better than that of the benchmark scheme.



中文翻译:

无人机中继辅助SWIPT-NOMA网络中联合下行用户功率分配与速率最大化

本文为了提高无线第五代(5G)通信系统的性能和节省功耗,在非正交下行链路的多用户集群中优化功率分配和最大化总用户速率的研究目标基于同步无线信息和电力传输(SWIPT)实现多址接入(NOMA)接入系统。构建了动态无人机中继辅助的SWIPT-NOMA系统。首次研究了两跳通信下的无人机中继动态规划,找到了SWIPT-NOMA系统下行用户的全局最优功率分配策略。最后采用最优中继选择算法最大化总用户率,并通过Monto Carlo仿真验证。

更新日期:2022-09-11
down
wechat
bug