无人机辅助边缘计算安全通信能力最大化方案
Scheme for Maximizing Secure Communication Capacity in UAV-assisted Edge Computing Networks
薛建彬 1豆俊 1王涛 1马玉玲1
作者信息
- 1. 兰州理工大学计算机与通信学院 兰州 730050
- 折叠
摘要
针对无人机辅助移动边缘计算系统下用户信息容易泄露的问题,设计了一种基于非正交多址接入技术(Non-orthogo-nal Multiple Access,NOMA)的无人机辅助边缘计算系统的安全通信方案.在保证每个地面用户的最小安全计算要求下,通过联合优化信道系数、发射功率、中央处理单元计算频率、本地计算和无人机轨迹来最大化系统的平均安全计算能力.由于窃听者位置的不确定性、多变量的耦合以及问题的非凸性,利用逐次凸逼近和块坐标下降方法来解决该问题.仿真结果表明,与基准方案相比,所提方案在系统安全计算性能方面优于基准方案.
Abstract
Aiming at the problem that user information is easy to be leaked in UAV-assisted mobile edge computing system,based on non-orthogonal multiple access(NOMA)technology,a secure communication scheme for UAV-assisted mobile edge computing system is proposed.While ensuring the minimum secure computation requirement for each ground user,the average se-cure computation capability of the system is maximized by jointly optimizing the channel coefficients,the transmit power,the computation frequency of the central processing unit,the local computation and the UAV trajectory.Due to the uncertainty of the eavesdropper location,the coupling of multiple variables and the non-convexity of the problem,successive convex approximation and block coordinate descent method are used to solve the problem.Simulation results show that compared with the benchmark scheme,the proposed scheme outperforms the benchmark scheme in terms of system secure computation performance.
关键词
移动边缘计算/非正交多址/无人机/物理层安全/通信安全Key words
Mobile edge computing/Non-orthogonal multiple access/UAV/Physical layer security/Communications Security引用本文复制引用
基金项目
甘肃省科技计划(23YFGA0062)
甘肃省创新基金(2022A-215)
出版年
2024
NETL
NSTL
万方数据