PCA-Featured Transformer for Jamming Detection in 5G UAV Networks

• URL: http://arxiv.org/abs/2412.15312v2
• Date: Tue, 11 Mar 2025 15:01:44 GMT
• Title: PCA-Featured Transformer for Jamming Detection in 5G UAV Networks
• Authors: Joseanne Viana, Hamed Farkhari, Pedro Sebastiao, Victor P Gil Jimenez,
• Abstract summary: Unmanned Aerial Vehicles (UAVs) face significant security risks from jamming attacks, which can compromise network functionality.<n>Traditional detection methods often fall short when confronting AI-powered jamming that dynamically modifies its behavior.<n>We introduce a novel U-shaped transformer architecture to refine feature representations for improved wireless security.
• Score: 0.5999777817331317
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Unmanned Aerial Vehicles (UAVs) face significant security risks from jamming attacks, which can compromise network functionality. Traditional detection methods often fall short when confronting AI-powered jamming that dynamically modifies its behavior, while contemporary machine learning approaches frequently demand substantial feature engineering and struggle with temporal patterns in attack signatures. The vulnerability extends to 5G networks employing Time Division Duplex (TDD) or Frequency Division Duplex (FDD), where service quality may deteriorate due to deliberate interference. We introduce a novel U-shaped transformer architecture that leverages Principal Component Analysis (PCA) to refine feature representations for improved wireless security. The training process is regularized by incorporating the output entropy uncertainty into the loss function, a mechanism inspired by the Soft Actor-Critic (SAC) algorithm in Reinforcement Learning (RL) to enable robust jamming detection techniques. The architecture features a modified transformer encoder specially designed to process critical wireless signal features, including Received Signal Strength Indicator (RSSI) and Signal-to- Interference-plus-Noise Ratio (SINR) measurements. We complement this with a custom positional encoding mechanism that specifically accounts for the inherent periodicity of wireless signals,enabling a more accurate representation of temporal signal patterns. In addition, we propose a batch size scheduler and implement chunking techniques to optimize convergence for time series data. These advancements contribute to up to a ten times improvement in training speed within the advanced U-shaped encoder-decoder transformer model introduced in this study. Experimental evaluations demonstrate the effectiveness of our entropy-based approach, achieving detection rates of 85.06% in NLoS scenarios.

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