Power Allocation and Trajectory Design for Unmanned Aerial Vehicle Relay Network with Mobile Users

YAN Zhi; LU Yuanyuan; DING Cong; HE Daiyu; OUYANG Bo; YANG Liang; WANG Yaonan

doi:10.11999/JEIT231337

Volume 46 Issue 5

May 2024

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Article Navigation > Journal of Electronics & Information Technology > 2024 > 46(5): 1896-1907

YAN Zhi, LU Yuanyuan, DING Cong, HE Daiyu, OUYANG Bo, YANG Liang, WANG Yaonan. Power Allocation and Trajectory Design for Unmanned Aerial Vehicle Relay Network with Mobile Users[J]. Journal of Electronics & Information Technology, 2024, 46(5): 1896-1907. doi: 10.11999/JEIT231337

Citation:

YAN Zhi, LU Yuanyuan, DING Cong, HE Daiyu, OUYANG Bo, YANG Liang, WANG Yaonan. Power Allocation and Trajectory Design for Unmanned Aerial Vehicle Relay Network with Mobile Users[J]. Journal of Electronics & Information Technology, 2024, 46(5): 1896-1907. doi: 10.11999/JEIT231337

Citation:

YAN Zhi, LU Yuanyuan, DING Cong, HE Daiyu, OUYANG Bo, YANG Liang, WANG Yaonan. Power Allocation and Trajectory Design for Unmanned Aerial Vehicle Relay Network with Mobile Users[J]. Journal of Electronics & Information Technology, 2024, 46(5): 1896-1907. doi: 10.11999/JEIT231337

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Power Allocation and Trajectory Design for Unmanned Aerial Vehicle Relay Network with Mobile Users

doi: 10.11999/JEIT231337

1.
College of Electrical and Information Engineering, Hunan University, Changsha 410082, China
2.
College of Information Science and Engineering, Hunan University, Changsha 410082, China

Funds: The National Key Research and Development Program of China (2021YFC1910402), Hunan Provincial Natural Science Foundation General Project (2024JJ5090)

Received Date: 2023-12-04
Rev Recd Date: 2024-05-09

Available Online: 2024-05-18

Publish Date: 2024-05-10

Abstract

Abstract

In Unmanned Aerial Vehicle (UAV) relay networks, communication resource allocation and motion planning of UAV are the key problems that should be solved. In order to improve the communication efficiency of UAV relay communication system, a joint planning method of UAV relay power allocation and trajectory design is proposed based on proximal policy optimization algorithm. The joint planning problem of UAV relay power allocation and trajectory design in the user movement scenario is modelled as a Markov decision-making process. Considering the inaccurate acquisition of user location information, the reward function is set with the maximum throughput of the relay communication system as the optimization goal under the premise of satisfying the user interruption probability constraint. Then, a deep reinforcement learning algorithm with high convergence speed—the Proximal Policy Optimization (PPO) algorithm, is used to solve the problem and realized the flight trajectory optimization of relay UAV and the reasonable and effective allocation of relay transmission power. The simulation experimental results show that for the scenario of UAV relay communication with random users movement, the proposed method improves system throughput by 22% and 15%, respectively, compared to the methods based on random strategy and traditional Deep Deterministic Policy Gradient (DDPG). The results show that the proposed method can effectively improve the communication efficiency of the system.
- Unmanned Aerial Vehicle (UAV) communication,
- Users random movement,
- UAV trajectory design,
- Power allocation,
- Energy efficiency,
- Proximal Policy Optimization(PPO)

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References(28)

References

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