华中科技大学学报（自然科学版）2024，Vol.52Issue(3)：142-148,7.DOI:10.13245/j.hust.240073
受限回程链路下无人机辅助MEC的空地能耗折中
Air-ground energy tradeoff for UAV-assisted mobile edge computing under constraint backhaul
摘要
Abstract
Aiming at the contradiction between UAV energy consumption and ground user energy consumption in UAV assisted mobile edge computing(MEC)network,the air ground energy consumption tradeoff problem of UAV assisted MEC network under restricted backhaul link was studied.At the same time,considering that the energy consumption of UAV is usually several orders of magnitude different from that of ground user,an amplification factor was introduced to take account of ground user energy consumption.Our objective is to minimize the weighted total energy consumption by joint optimization of the task bit division,GU transmission power,GU offloading time,and UAV trajectory,and the trade-off between air and ground energy consumption can be represented.To solve the formulated highly non-convex problem,a two-stage alternating iterative optimization algorithm based on block coordinate descent algorithm and successive convex approximation technique was used to obtain a suboptimal solution.Simulation results show that the proposed scheme characterize the trade-off between aerial energy consumption and that of ground users under the premise of ensuring fairness,and outperforms other benchmark schemes in terms of reducing the total energy consumption.关键词
无人机辅助的移动边缘计算/受限回程链路/空地能耗折中/计算资源分配/轨迹优化Key words
UAV-assisted mobile edge computing/constraint backhaul/air-ground energy trade-off/computing resource allocation/trajectory optimization分类
信息技术与安全科学引用本文复制引用
李安,窦邵婷..受限回程链路下无人机辅助MEC的空地能耗折中[J].华中科技大学学报（自然科学版）,2024,52(3):142-148,7.基金项目
江西省03专项及5G资助项目(20204ABC03A05,20204ABC03A37) （20204ABC03A05,20204ABC03A37）
江西省研究生创新专项资金资助项目(YC2020-S105). （YC2020-S105）
