Decentralized federated learning methods for reducing communication cost and energy consumption in UAV networks

• URL: http://arxiv.org/abs/2304.06551v1
• Date: Thu, 13 Apr 2023 14:00:34 GMT
• Title: Decentralized federated learning methods for reducing communication cost and energy consumption in UAV networks
• Authors: Deng Pan, Mohammad Ali Khoshkholghi, Toktam Mahmoodi
• Abstract summary: Unmanned aerial vehicles (UAV) play many roles in a modern smart city such as the delivery of goods, mapping real-time road traffic and monitoring pollution. Traditional machine learning models for drones encounter data privacy problems, communication costs and energy limitations. We propose two aggregation methods: Commutative FL and Alternate FL, based on the existing architecture of decentralised Federated Learning for UAV Networks (DFL-UN)
• Score: 8.21384946488751
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Unmanned aerial vehicles (UAV) or drones play many roles in a modern smart city such as the delivery of goods, mapping real-time road traffic and monitoring pollution. The ability of drones to perform these functions often requires the support of machine learning technology. However, traditional machine learning models for drones encounter data privacy problems, communication costs and energy limitations. Federated Learning, an emerging distributed machine learning approach, is an excellent solution to address these issues. Federated learning (FL) allows drones to train local models without transmitting raw data. However, existing FL requires a central server to aggregate the trained model parameters of the UAV. A failure of the central server can significantly impact the overall training. In this paper, we propose two aggregation methods: Commutative FL and Alternate FL, based on the existing architecture of decentralised Federated Learning for UAV Networks (DFL-UN) by adding a unique aggregation method of decentralised FL. Those two methods can effectively control energy consumption and communication cost by controlling the number of local training epochs, local communication, and global communication. The simulation results of the proposed training methods are also presented to verify the feasibility and efficiency of the architecture compared with two benchmark methods (e.g. standard machine learning training and standard single aggregation server training). The simulation results show that the proposed methods outperform the benchmark methods in terms of operational stability, energy consumption and communication cost.

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