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Related Experiment Video

Updated: Sep 22, 2025

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
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Multi-UAV Content Caching Strategy and Cooperative, Complementary Content Transmission Based on Coalition Formation

Yanzan Sun1, Xinlin Zhong1, Fan Wu2

  • 1Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China.

Sensors (Basel, Switzerland)
|May 20, 2022
PubMed
Summary

This study introduces a multi-unmanned aerial vehicle (UAV) strategy for content caching and transmission in wireless networks. It enhances network performance by optimizing UAV cooperation and content delivery to users.

Keywords:
cachingcoalition formation game (CFG)unmanned aerial vehicle (UAV)user clustering

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Area of Science:

  • Wireless Communication Networks
  • Content Caching
  • Network Optimization

Background:

  • Increasing demand for video and picture content strains wireless networks.
  • Unmanned Aerial Vehicle (UAV)-aided small cells offer a solution for backhaul alleviation and flexible coverage.
  • Limitations in UAV battery life and caching capacity necessitate advanced strategies.

Purpose of the Study:

  • To develop a joint multi-UAV content-caching and cooperative transmission strategy.
  • To address the challenges posed by limited UAV resources.
  • To maximize overall network utility through efficient content delivery.

Main Methods:

  • User clustering based on content preference and location similarity.
  • Modeling cooperative, complementary content transmission as a coalition formation game (CFG).
  • Developing algorithms for multi-UAV content caching and transmission.

Main Results:

  • A user-clustering-based caching strategy was designed.
  • A coalition formation game (CFG) was used to model cooperative transmission.
  • Numerical simulations demonstrated the effectiveness of the proposed algorithms.

Conclusions:

  • The proposed multi-UAV strategy effectively manages content caching and transmission.
  • Cooperative strategies enhance network performance and user experience.
  • The approach provides a viable solution for content delivery challenges in wireless networks.