Blockchain-enabled Clustered and Scalable Federated Learning (BCS-FL) Framework in UAV Networks

• URL: http://arxiv.org/abs/2402.05973v2
• Date: Thu, 15 Feb 2024 23:42:40 GMT
• Title: Blockchain-enabled Clustered and Scalable Federated Learning (BCS-FL) Framework in UAV Networks
• Authors: Sana Hafeez, Lina Mohjazi, Muhammad Ali Imran and Yao Sun
• Abstract summary: This paper presents the Clustered and Scalable Federated Learning (BCS-FL) framework for UAV networks. It improves the decentralization, coordination, scalability, and efficiency of FL in large-scale UAV networks.
• Score: 8.278150104847183
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Privacy, scalability, and reliability are significant challenges in unmanned aerial vehicle (UAV) networks as distributed systems, especially when employing machine learning (ML) technologies with substantial data exchange. Recently, the application of federated learning (FL) to UAV networks has improved collaboration, privacy, resilience, and adaptability, making it a promising framework for UAV applications. However, implementing FL for UAV networks introduces drawbacks such as communication overhead, synchronization issues, scalability limitations, and resource constraints. To address these challenges, this paper presents the Blockchain-enabled Clustered and Scalable Federated Learning (BCS-FL) framework for UAV networks. This improves the decentralization, coordination, scalability, and efficiency of FL in large-scale UAV networks. The framework partitions UAV networks into separate clusters, coordinated by cluster head UAVs (CHs), to establish a connected graph. Clustering enables efficient coordination of updates to the ML model. Additionally, hybrid inter-cluster and intra-cluster model aggregation schemes generate the global model after each training round, improving collaboration and knowledge sharing among clusters. The numerical findings illustrate the achievement of convergence while also emphasizing the trade-offs between the effectiveness of training and communication efficiency.

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