FedRP: A Communication-Efficient Approach for Differentially Private Federated Learning Using Random Projection

• URL: http://arxiv.org/abs/2509.10041v1
• Date: Fri, 12 Sep 2025 08:08:48 GMT
• Title: FedRP: A Communication-Efficient Approach for Differentially Private Federated Learning Using Random Projection
• Authors: Mohammad Hasan Narimani, Mostafa Tavassolipour,
• Abstract summary: Federated learning (FL) offers an innovative paradigm for collaborative model training across decentralized devices.<n>Despite its advantages, FL encounters challenges related to user privacy protection against potential attacks and the management of communication costs.<n>This paper introduces a novel federated learning algorithm called FedRP, which integrates random projection techniques with the Alternating Direction Method of Multipliers (ADMM) optimization framework.
• Score: 1.4552744016611232
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Federated learning (FL) offers an innovative paradigm for collaborative model training across decentralized devices, such as smartphones, balancing enhanced predictive performance with the protection of user privacy in sensitive areas like Internet of Things (IoT) and medical data analysis. Despite its advantages, FL encounters significant challenges related to user privacy protection against potential attacks and the management of communication costs. This paper introduces a novel federated learning algorithm called FedRP, which integrates random projection techniques with the Alternating Direction Method of Multipliers (ADMM) optimization framework. This approach enhances privacy by employing random projection to reduce the dimensionality of model parameters prior to their transmission to a central server, reducing the communication cost. The proposed algorithm offers a strong $(\epsilon, \delta)$-differential privacy guarantee, demonstrating resilience against data reconstruction attacks. Experimental results reveal that FedRP not only maintains high model accuracy but also outperforms existing methods, including conventional differential privacy approaches and FedADMM, in terms of both privacy preservation and communication efficiency.

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