A HYBRID SATELLITE–UAV MARITIME COMMUNICATION NETWORK FOR OFFSHORE DATA TRANSMISSION

Reliable data transmission in offshore environments remains a critical challenge due to long communication distances, unstable maritime channels, and limited infrastructure coverage.Traditional maritime communication systems mainly rely on coastal radio stations and satellite links, which often suffer from latency, bandwidth constraints, and communication interruptions in remote ocean regions.This study proposes a hybrid satellite-UAV maritime communication network designed to improve offshore data transmission reliability and coverage continuity.The proposed architecture integrates satellite communication, unmanned aerial vehicle (UAV) relay nodes, and maritime Internet of Things (IoT) devices into a heterogeneous multilayer communication framework.The system enables adaptive data routing and multi-hop communication between offshore platforms and coastal command centers.Communication performance is evaluated using metrics including latency, bandwidth availability, and link reliability under different maritime operational scenarios.Scenario-based analysis indicates that the hybrid network architecture can improve communication stability and reduce transmission delays compared with conventional single-layer maritime communication systems.The proposed framework provides a scalable and practical engineering solution for next-generation maritime communication networks supporting offshore monitoring, environmental sensing, and maritime safety applications.