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Ocean Surface Drifting Buoy System Based on UAV-Enabled Wireless Powered Relay Network.

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  • 1Electronic Information School, Wuhan University, Wuhan 430027, China.

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Summary
This summary is machine-generated.

This study introduces a novel wireless network for ocean buoys using a drone (UAV) as a relay. The system optimizes communication modes to enhance data throughput for all drifting buoys.

Keywords:
buoy communicationmaximize minimum throughputresource allocationunmanned aerial vehicle (UAV)wireless powered communication networks

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Area of Science:

  • Wireless Communication Networks
  • Oceanography
  • Robotics

Background:

  • Ocean surface drifting buoys are crucial for environmental monitoring but face energy and communication limitations.
  • Existing systems struggle with efficient data relay and power management for dispersed buoys.

Purpose of the Study:

  • To develop an optimized wireless communication system for ocean surface drifting buoys.
  • To enhance the energy and data throughput efficiency of buoy networks using a UAV-enabled relay.

Main Methods:

  • A UAV-based wireless powered relay network was designed, acting as a hybrid access point.
  • A novel communication mode selection strategy (Direct Transmission vs. Relay Transmission) was proposed based on buoy energy reserves.
  • A joint UAV trajectory and resource allocation algorithm using block coordinate descent and successive convex optimization was developed.

Main Results:

  • The proposed algorithm effectively maximizes the minimum throughput for buoys operating in relay transmission mode.
  • Simulation results demonstrate a significant improvement in the minimum throughput of ocean surface drifting buoys.
  • The system efficiently manages energy and data forwarding for a network of drifting buoys.

Conclusions:

  • The UAV-enabled wireless powered relay network offers a viable solution for improving ocean buoy communication efficiency.
  • The proposed communication mode selection and resource allocation strategy enhances system performance, particularly for energy-constrained buoys.
  • This approach provides a foundation for more robust and efficient oceanographic data collection systems.