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A Location-Aware Waypoint-Based Routing Protocol for Airborne DTNs in Search and Rescue Scenarios.

Armir Bujari1, Carlos T Calafate2, Juan-Carlos Cano3

  • 1Department of Mathematics, University of Padua, 35121 Padua, Italy. abujari@math.unipd.it.

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GeoSaW is a new routing protocol for airborne networks that uses UAV movement paths to improve message delivery in search and rescue operations. This approach enhances performance compared to traditional delay-tolerant networking protocols.

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Area of Science:

  • Computer Science
  • Network Engineering
  • Robotics

Background:

  • Delay-tolerant networking (DTN) is crucial for communication in challenging environments like search and rescue.
  • Airborne networks using Unmanned Aerial Vehicles (UAVs) offer unique advantages but face routing complexities.
  • Existing DTN protocols may not fully leverage the dynamic nature of UAVs.

Purpose of the Study:

  • To introduce GeoSaW, a novel delay-tolerant routing protocol specifically designed for UAV-based airborne networks.
  • To enhance message forwarding efficiency in Search and Rescue (SAR) scenarios by utilizing UAV trajectory information.
  • To evaluate the performance of GeoSaW against established DTN routing protocols.

Main Methods:

  • Development of the GeoSaW protocol, incorporating geographical and future motion path information of UAVs.
  • Simulation-based performance evaluation of GeoSaW.
  • Comparison of GeoSaW with traditional Delay-Tolerant Networking (DTN) routing protocols.

Main Results:

  • GeoSaW effectively utilizes future UAV movement paths for optimized message forwarding decisions.
  • Simulation results demonstrate superior performance of GeoSaW over classic DTN protocols.
  • Key performance metrics show significant improvements with the proposed GeoSaW protocol.

Conclusions:

  • GeoSaW offers a significant advancement in delay-tolerant routing for airborne networks in SAR.
  • Exploiting UAV geographical and trajectory data is a viable strategy for improving DTN performance.
  • The proposed protocol shows strong potential for real-world SAR applications.