journal article·2022-01-09Open access

Multi-UAV Conflict Resolution with Graph Convolutional Reinforcement Learning

Ralvi Isufaj, Marsel Omeri, Miquel Angel Piera

Applied Sciences· Volume 12· Issue 2

Abstract

Safety is the primary concern when it comes to air traffic. In-flight safety between Unmanned Aircraft Vehicles (UAVs) is ensured through pairwise separation minima, utilizing conflict detection and resolution methods. Existing methods mainly deal with pairwise conflicts, however, due to an expected increase in traffic density, encounters with more than two UAVs are likely to happen. In this paper, we model multi-UAV conflict resolution as a multiagent reinforcement learning problem. We implement an algorithm based on graph neural networks where cooperative agents can communicate to jointly generate resolution maneuvers. The model is evaluated in scenarios with 3 and 4 present agents. Results show that agents are able to successfully solve the multi-UAV conflicts through a cooperative strategy.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Air Traffic Management and Optimization · Autonomous Vehicle Technology and Safety · Traffic control and management

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Logistic and Aeronautics Group, Department of Telecommunications and System Engineering, Autonomous University of Barcelona, 08202 Sabadell, Spain

Funding

SESAR Joint Undertaking · Spanish National Project

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