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Energy-Adaptive Approximate Computing Scheme for Efficient Federated Learning in Energy-Harvesting AIoT Systems

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2025, 30(7), pp.11~19
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science
  • Received : May 12, 2025
  • Accepted : July 4, 2025
  • Published : July 31, 2025

Ikjune Yoon 1 Dong Kun Noh 2

1경기대학교
2숭실대학교

Accredited

ABSTRACT

With recent advancements in energy harvesting technologies and the proliferation of AIoT devices capable of on-device learning, energy-harvesting AIoT systems have attracted significant attention. This study proposes an energy-adaptive approximate computing method designed to efficiently enhance federated learning performance while ensuring the stable operation of energy-constrained edge AIoT devices. Typically, there is a proportional relationship between learning performance and energy consumption; thus, performance trade-offs are inevitable under stringent energy conditions. Based on a solar energy harvesting model, the proposed scheme optimizes local training data sizes and parameter exchange volumes for each training round within limited energy budgets, performing approximate computing. This approach effectively minimizes device blackout durations, thereby improving the overall accuracy of federated learning.

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