Title
Path planning of multi-UAVs based on deep Q-network for energy-efficient data collection in UAVs-assisted IoT
Abstract
In recent years, Unmanned Aerial Vehicles (UAVs) can effectively alleviate the problems of unstable links and low transmission efficiency, which have been applied for Wireless Sensor Networks (WSNs) to speed up data collection and transmission. However, when the multiple UAVs collect data onto the same area, there is a problem of overlapping coverage areas, which will result in low energy efficiency. Therefore, this paper studies the energy-efficient collaborative path planning problem to maximize data collection of UAVs from distributed sensors. Based on built multi-UAVs assisted system for collecting sensors data, we formulate the optimization objective to maximize the data collected by the UAV group within the limits of energy and the total covered area. To solve the problem of UAVs' collaborative path planning, we propose a Hexagonal Area Search (HAS) algorithm, which is combined with multi-agents Deep Q-Network(DQN), called HAS-DQN. By limiting the total coverage of UAVs, HAS-DQN can effectively avoid collision problems with UAVs. Experiments show that HAS-DQN can effectively solve the path overlap problem of multiple UAVs moving at the same cost in an unknown environment.
Year
DOI
Venue
2022
10.1016/j.vehcom.2022.100491
Vehicular Communications
Keywords
DocType
Volume
UAV group,Multi-UAVs path planning,HAS-DQN,Limited total area,Energy-efficient
Journal
36
ISSN
Citations 
PageRank 
2214-2096
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Xiumin Zhu100.34
Lingling Wang200.34
Yumei Li300.34
Shudian Song400.34
Shuyue Ma502.37
Feng Yang600.68
Linbo Zhai7157.01