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Technology of Network & Communication
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App. Res. of Comp. Printed Article
Vol. 41, 2024 No. 4
1143-1149

UAV 3D deployment and content caching optimization for mobile edge computing

Tang Huanbo1a,1b,2
Chen Xing1a,1b,2
Zhang Jianshan1b,3
1. a. College of Computer & Data Science, b. Fujian Key Laboratory of Network Computing & Intelligent Information Processing, Fuzhou University, Fuzhou 350116, China
2. Key Laboratory of Spatial Data Mining & Information Sharing, Ministry of Education, Fuzhou 350002, China
3. College of Computer & Control Engineering, Minjiang University, Fuzhou 350108, China
DOI: 10.19734/j.issn.1001-3695.2023.08.0361

Abstract

With the explosive growth of mobile data traffic in wireless networks, cache-enabled unmanned aerial vehicles(UAVs) are being used in mobile computing to serve as edge servers to provide on-demand services to users in the network. To bring better quality of experience to users while satisfying other resource constraints, it jointly optimized UAVs deployment, cache placement and user association to minimize content access latency for all users and provided users with content caching services of varying quality. This paper proposed a joint optimization algorithm based on alternating optimization for the scenario where multiple UAVs and ground base stations collaborate to provide caching services. The algorithm achieved a sub-optimal solution with a convergence guarantee by iteratively solving the three sub-problems obtained from the decomposition of the objective problem. Firstly, a successive convex approximation-based algorithm solved the UAV deployment sub-problem. Secondly, it used a greedy-based algorithm to solve the content caching sub-problem. Then it used a successive convex approximation algorithm based on the penalty function to solve the user access sub-problem. Finally, it repeated the above procedure to obtain a sub-optimal solution to the target problem. Several simulation experiments verified the effectiveness and feasibility of the proposed algorithm. The simulation results show that the proposed joint optimization algorithm performs better regarding average content access latency and cache hit ratio than the benchmark algorithm.

Foundation Support

国家自然科学基金资助项目(62072108)
福建省自然科学基金杰青项目(2020J06014)
中央引导地方科技发展资金资助项目(2022L3004)
福厦泉国家自主创新示范区协同创新平台项目(2022FX5)
福建省科技经济融合服务平台项目(2023XRH001)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.08.0361
Publish at: Application Research of Computers Printed Article, Vol. 41, 2024 No. 4
Section: Technology of Network & Communication
Pages: 1143-1149
Serial Number: 1001-3695(2024)04-027-1143-07

Publish History

[2023-11-02] Accepted Paper
[2024-04-05] Printed Article

Cite This Article

唐焕博, 陈星, 张建山. 移动边缘计算中的无人机三维部署和内容缓存优化方法 [J]. 计算机应用研究, 2024, 41 (4): 1143-1149. (Tang Huanbo, Chen Xing, Zhang Jianshan. UAV 3D deployment and content caching optimization for mobile edge computing [J]. Application Research of Computers, 2024, 41 (4): 1143-1149. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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