App. Res. of Comp. Accepted Paper
Vol. 43, 2026 No. 4

Joint optimization of transmission resources and trajectory for air-ground cooperative noma with dynamic time-slot division

Feng Liyang
Xu Wanping
Shanghai Maritime University, College of Information Engineering, Shanghai 201306, China
DOI: 10.19734/j.issn.1001-3695.2025.08.0284

Abstract

Aiming at the critical issues of scarce spectrum resources and unmet user QoS in emergency communications, this paper constructed an unmanned aerial vehicle (UAV) -assisted air-ground cooperative system and proposed a dynamic time-slot division based NOMA transmission and resource allocation scheme. This scheme dynamically splits each communication time slot. It prioritizes the ground base station (GBS) to serve its scheduled NOMA user pairs. If any user failed to meet the QoS requirement due to insufficient power allocation from the GBS, the UAV provided compensatory transmission within the remaining portion of the same time slot. For this system model, an optimization problem was formulated to maximize the system throughput under constraints of UAV energy, base station power, and spatiotemporal resources. To enhance computational efficiency, the original mixed-integer nonlinear programming problem was decoupled into three subproblems: UAV trajectory optimization, GBS user scheduling and power allocation, and joint UAV power and time-slot optimization. The paper used successive convex approximation and McCormick envelopes to handle nonconvex constraints and adopted a hierarchical distributed iterative approach for solution. The results showed that the proposed scheme achieved over 20% higher total system throughput and nearly 30% better energy efficiency compared to static schemes. This demonstrates the superiority of the proposed scheme in both overall system throughput and energy efficiency, confirming its effectiveness for practical application in emergency communications.

Foundation Support

上海市青年科技英才扬帆计划资助项目(20YF1416700)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2025.08.0284
Publish at: Application Research of Computers Accepted Paper, Vol. 43, 2026 No. 4

Publish History

[2025-12-11] Accepted Paper

Cite This Article

冯立洋, 徐涴砯. 基于动态时隙分割的空地协同NOMA传输资源与轨迹联合优化 [J]. 计算机应用研究, 2026, 43 (4). (2025-12-11). https://doi.org/10.19734/j.issn.1001-3695.2025.08.0284. (Feng Liyang, Xu Wanping. Joint optimization of transmission resources and trajectory for air-ground cooperative noma with dynamic time-slot division [J]. Application Research of Computers, 2026, 43 (4). (2025-12-11). https://doi.org/10.19734/j.issn.1001-3695.2025.08.0284. )

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.

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