Resource Optimization for Blockchain-Based Federated Learning in Mobile Edge Computing

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2024-05
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English
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IEEE
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Abstract

With the booming of mobile edge computing (MEC) and blockchain-based blockchain-based federated learning (BCFL), more studies suggest deploying BCFL on edge servers. In this case, edge servers with restricted resources face the dilemma of serving both mobile devices for their offloading tasks and the BCFL system for model training and blockchain consensus without sacrificing the service quality to any side. To address this challenge, this article proposes a resource allocation scheme for edge servers to provide optimal services at the minimum cost. Specifically, we first analyze the energy consumption of the MEC and BCFL tasks, considering the completion time of each task as the service quality constraint. Then, we model the resource allocation challenge into a multivariate, multiconstraint, and convex optimization problem. While solving the problem in a progressive manner, we design two algorithms based on the alternating direction method of multipliers (ADMMs) in both homogeneous and heterogeneous situations, where equal and on-demand resource distribution strategies are, respectively, adopted. The validity of our proposed algorithms is proved via rigorous theoretical analysis. Moreover, the convergence and efficiency of our proposed resource allocation schemes are evaluated through extensive experiments.

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Wang, Z., Hu, Q., Xiong, Z., Liu, Y., & Niyato, D. (2024). Resource Optimization for Blockchain-Based Federated Learning in Mobile Edge Computing. IEEE Internet of Things Journal, 11(9), 15166–15178. IEEE Internet of Things Journal. https://doi.org/10.1109/JIOT.2023.3347524
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IEEE Internet of Things Journal
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ArXiv
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