UAV Assisted Video Multicasting in 6G Networks: A Joint Caching and Trajectory Optimisation

  • Nguyen-Son Vo Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
  • Thuong C. Lam HUTECH University, Ho Chi Minh City, Vietnam
  • Minh-Phung Bui Faculty of Information Technology, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam
  • Thanh-Minh Phan Vietnam Aviation Academy, Ho Chi Minh City, Vietnam
  • Quang-Nhat Tran Faculty of Information Technology, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Vietnam
Từ khóa: 6G network, caching and trajectory design, UAV communication, video multicasting applications and services

Tóm tắt

In this paper, we design a joint caching and trajectory optimisation (CTO) solution for unmanned aerial vehicles (UAVs) assisted video multicasting (UVM) in 6G networks. To do so, the mobile users (MUs), who have the same interest of videos, are grouped into different clusters. We then formulate a CTO problem and solve it for the optimal number of videos to cache and the optimal set of UAV’s stops to fly throughout, to serve the MUs in different clusters at maximum video delivery capacity. Simultaneously, a next shortest hop problem and the travelling salesman problem are solved for optimal trajectories, and thus reducing the flying energy consumption of the UAV. Simulation results are presented to analyse and demonstrate the benefits of the proposed CTO solution for the UVM in 6G networks.

điểm /   đánh giá
Phát hành ngày
2022-03-10
In ra
Tập. 1 Số. 1 (2022)
Chuyên mục
Engineering