《计算机应用》唯一官方网站 ›› 2024, Vol. 44 ›› Issue (4): 1209-1218.DOI: 10.11772/j.issn.1001-9081.2023040482

• 网络与通信 • 上一篇    

UAV协助下非正交多址接入使能的数据采集系统中能效优化机制

唐睿1,2(), 岳士博2, 张睿智3, 刘川1, 庞川林2   

  1. 1.西华师范大学 电子信息工程学院, 四川 南充 637002
    2.成都理工大学 计算机与网络安全学院, 成都 610059
    3.电子科技大学 信息与通信工程学院, 成都 611731
  • 收稿日期:2023-04-25 修回日期:2023-07-12 接受日期:2023-07-14 发布日期:2023-12-04 出版日期:2024-04-10
  • 通讯作者: 唐睿
  • 作者简介:唐睿(1988—),男,甘肃兰州人,副教授,博士,CCF会员,主要研究方向:无线通信系统MAC层设计 allanxjtu@163.com
    岳士博(2000—),男,四川巴中人,硕士研究生,CCF学生会员,主要研究方向:无人机通信系统资源分配
    张睿智(1999—),男,山东济宁人,博士研究生,主要研究方向:泛化优化算法及应用
    刘川(1991—),男,四川南充人,讲师,硕士,主要研究方向:无线通信系统PHY层设计
    庞川林(1997—),男,四川南充人,硕士研究生,主要研究方向:深度强化学习算法及应用。
  • 基金资助:
    国家自然科学基金资助项目(62301450);四川省科技厅自然科学基金资助项目(24NSFSC5070);四川省科技厅区域创新合作项目(22QYCX0002);成都理工大学基本科研业务费资金资助项目(10912?KYQD2019_08164)

Energy efficiency optimization mechanism for UAV-assisted and non-orthogonal multiple access-enabled data collection system

Rui TANG1,2(), Shibo YUE2, Ruizhi ZHANG3, Chuan LIU1, Chuanlin PANG2   

  1. 1.School of Electronic Information Engineering,China West Normal University,Nanchong Sichuan 637002,China
    2.College of Computer Science and Cyber Security,Chengdu University of Technology,Chengdu Sichuan 610059,China
    3.School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu Sichuan 611731,China
  • Received:2023-04-25 Revised:2023-07-12 Accepted:2023-07-14 Online:2023-12-04 Published:2024-04-10
  • Contact: Rui TANG
  • About author:TANG Rui, born in 1988, Ph. D., associate professor. His research interests include MAC layer design in radio communication systems.
    YUE Shibo, born in 2000, M. S. candidate. His research interests include resource allocation in unmanned aerial vehicular communication systems.
    ZHANG Ruizhi, born in 1999, Ph. D. candidate. His research interests include generalized optimization algorithms and their applications.
    LIU Chuan, born in 1991, M. S., lecturer. His research interests include PHY layer design in radio communication systems.
    PANG Chuanlin, born in 1997, M. S. candidate. His research interests include deep reinforcement learning algorithms and their applications.
  • Supported by:
    National Natural Science Foundation of China(62301450);Sichuan Provincial Natural Science Foundation(24NSFSC5070);Sichuan Provincial Regional Innovation Cooperation Project(22QYCX0002);Fundamental Research Funds of Chengdu University of Technology(10912-KYQD2019_08164)

摘要:

无人机(UAV)协助下非正交多址接入(NOMA)使能的数据采集系统,考虑了地空概率信道模型和服务质量约束,并联合优化UAV三维布局设计和传感器功率分配最大化所有传感器的总能效。针对原混合整数非凸规划问题,提出了一种基于凸优化理论、深度学习理论和哈里斯鹰优化(HHO)算法的能效优化机制。在任意给定的UAV三维布局下,首先将功率分配子问题等价转化为凸优化问题;其次基于最优的功率分配方案,采用深度神经网络(DNN)构建从传感器位置到UAV三维布局的映射,并利用HHO算法离线训练最佳映射对应的模型参数。训练后的机制仅需执行少量代数运算并求解单个凸优化问题。仿真实验结果表明,在传感器数为12的情况下,相较于基于粒子群算法的遍历搜索机制,所提机制在仅损失约4.73%的总能效的情况下将运算时间降低了5个数量级。

关键词: 无人机通信, 非正交多址接入, 能效, 资源分配, 凸优化, 深度学习, 哈里斯鹰优化算法

Abstract:

In the Unmanned Aerial Vehicle (UAV)-assisted and Non-Orthogonal Multiple Access (NOMA)-enabled data collection system, the total energy efficiency of all sensors is maximized by jointly optimizing the three-dimensional placement design of the UAVs and the power allocation of sensors under the ground-air probabilistic channel model and the quality-of-service requirements. To solve the original mixed-integer non-convex programming problem, an energy efficiency optimization mechanism was proposed based on convex optimization theory, deep learning theory and Harris Hawk Optimization (HHO) algorithm. Under any given three-dimensional placement of the UAVs, first, the power allocation sub-problem was equivalently transformed into a convex optimization problem. Then, based on the optimal power allocation strategy, the Deep Neural Network (DNN) was applied to construct the mapping from the positions of the sensors to the three-dimensional placement of the UAVs, and the HHO algorithm was further utilized to train the model parameters corresponding to the optimal mapping offline. The trained mechanism only involved several algebraic operations and needed to solve a single convex optimization problem. Simulation experimental results show that compared with the travesal search mechanism based on particle swarm optimization algorithm, the proposed mechanism reduces the average operation time by 5 orders of magnitude while sacrificing only about 4.73% total energy efficiency in the case of 12 sensors.

Key words: Unmanned Aerial Vehicle (UAV) communication, Non-Orthogonal Multiple Access (NOMA), energy efficiency, resource allocation, convex optimization, deep learning, Harris Hawk Optimization (HHO) algorithm

中图分类号: