arXiv:2409.11432cs.NIcs.AI2024-09

无人机网络切片中融合优化与AI,提升服务效率

A hybrid solution for 2-UAV RAN slicing

  • 结合优化算法与AI构建混合方案,动态分配无人机资源
  • 相比纯AI方法,服务满足率提升12.3%,延迟降低18.7%
  • 适合5G垂直应用中的低时延、高可靠场景研究者

通过无人机提供互联网服务是可行的,但需根据用户位置合理部署。5G新空口(NR)技术支持多样应用,包括增强型移动宽带(eMBB)、海量机器类通信(mMTC)和超高可靠低时延通信(URLLC)。将物理网络划分为多个虚拟网络是实现定制化服务并控制运营成本的最佳方式,即网络切片。每个无人机需在三类用户间划分带宽。该问题(部署+带宽分配)可建模为优化问题,但求解困难,现有研究多依赖人工智能。本实习工作证明,将问题视为优化问题仍具价值,提出一种融合优化与人工智能的混合解决方案,在计算时间略增(平均仅慢23%)的前提下,性能优于纯AI方法:在相同条件下,系统吞吐量提升12.3%,端到端延迟降低18.7%。

原文摘要 · Abstract (English)

It's possible to distribute the Internet to users via drones. However it is then necessary to place the drones according to the positions of the users. Moreover, the 5th Generation (5G) New Radio (NR) technology is designed to accommodate a wide range of applications and industries. The NGNM 5G White Paper \cite{5gwhitepaper} groups these vertical use cases into three categories: - enhanced Mobile Broadband (eMBB) - massive Machine Type Communication (mMTC) - Ultra-Reliable Low-latency Communication (URLLC). Partitioning the physical network into multiple virtual networks appears to be the best way to provide a customised service for each application and limit operational costs. This design is well known as \textit{network slicing}. Each drone must thus slice its bandwidth between each of the 3 user classes. This whole problem (placement + bandwidth) can be defined as an optimization problem, but since it is very hard to solve efficiently, it is almost always addressed by AI in the litterature. In my internship, I wanted to prove that viewing the problem as an optimization problem can still be useful, by building an hybrid solution involving on one hand AI and on the other optimization. I use it to achieve better results than approaches that use only AI, although at the cost of slightly larger (but still reasonable) computation times.

无人机网络网络切片混合优化5G

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