Optimizing Model Splitting and Device Task Assignment for Deceptive Signal Assisted Private Multi-hop Split Learning

• URL: http://arxiv.org/abs/2507.07323v1
• Date: Wed, 09 Jul 2025 22:53:23 GMT
• Title: Optimizing Model Splitting and Device Task Assignment for Deceptive Signal Assisted Private Multi-hop Split Learning
• Authors: Dongyu Wei, Xiaoren Xu, Yuchen Liu, H. Vincent Poor, Mingzhe Chen,
• Abstract summary: In our model, several edge devices jointly perform collaborative training, and some eavesdroppers aim to collect the model and data information from devices.<n>To prevent the eavesdroppers from collecting model and data information, a subset of devices can transmit deceptive signals.<n>We propose a soft actor-critic deep reinforcement learning framework with intrinsic curiosity module and cross-attention.
• Score: 58.620753467152376
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In this paper, deceptive signal-assisted private split learning is investigated. In our model, several edge devices jointly perform collaborative training, and some eavesdroppers aim to collect the model and data information from devices. To prevent the eavesdroppers from collecting model and data information, a subset of devices can transmit deceptive signals. Therefore, it is necessary to determine the subset of devices used for deceptive signal transmission, the subset of model training devices, and the models assigned to each model training device. This problem is formulated as an optimization problem whose goal is to minimize the information leaked to eavesdroppers while meeting the model training energy consumption and delay constraints. To solve this problem, we propose a soft actor-critic deep reinforcement learning framework with intrinsic curiosity module and cross-attention (ICM-CA) that enables a centralized agent to determine the model training devices, the deceptive signal transmission devices, the transmit power, and sub-models assigned to each model training device without knowing the position and monitoring probability of eavesdroppers. The proposed method uses an ICM module to encourage the server to explore novel actions and states and a CA module to determine the importance of each historical state-action pair thus improving training efficiency. Simulation results demonstrate that the proposed method improves the convergence rate by up to 3x and reduces the information leaked to eavesdroppers by up to 13% compared to the traditional SAC algorithm.

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