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A Study on the Characteristics of Clustering and Route Generation Methods in Multi-UAV Data Collection

  • Journal of Internet of Things and Convergence
  • Abbr : JKIOTS
  • 2026, 12(4), 22
  • Publisher : The Korea Internet of Things Society
  • Research Area : Engineering > Computer Science > Internet Information Processing
  • Received : August 11, 2026
  • Accepted : August 18, 2026
  • Published : August 31, 2026

Sanghyeon Kim 1 Seungho Yoo 1

1국립부경대학교

Accredited

ABSTRACT

Systems that collect data from large-scale sensor networks with multiple unmanned aerial vehicles (UAVs) typically consist of clustering that partitions nodes among UAVs, a route generation algorithm that builds per-cluster visiting routes, and periodic route replanning. Existing studies focus on proposing individual techniques, making it difficult to assess how each component affects collection performance. This paper analyzes how collected volume, data freshness, redundant revisits, and computation cost change with the route generation algorithm, the clustering criterion, and the replanning period and trigger in a multi-UAV data collection simulation. The results show that data freshness is determined by the route generation algorithm; when a redundant-revisit penalty is incorporated, its invariance to visiting order causes freshness to degrade with longer route computation time. Re-clustering from scratch at every cycle reduces the collected volume to a quarter, while demand-weighted clustering more than halves redundant revisits. This shows that greedy route construction combined with demand-weighted clustering is effective.

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