Evaluation of Anomaly Detection Methods for OTA-Integrated Automotive Systems


Subasi E., MERCİMEK M.

2025 Innovations in Intelligent Systems and Applications Conference, ASYU 2025, Bursa, Turkey, 10 - 12 September 2025, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1109/asyu67174.2025.11208492
  • City: Bursa
  • Country: Turkey
  • Keywords: anomaly detection, Autoencoder, automotive cybersecurity, CAN bus, frequency-based detection, OTA updates, rule-based detection
  • Yıldız Technical University Affiliated: Yes

Abstract

The rise of Over-the-Air (OTA) technology in automotive systems brings significant convenience and cost savings but also introduces new cyber-physical risks. In the context of connected and autonomous vehicles (CAVs), ensuring robust anomaly detection mechanisms becomes critical to counter evolving threats targeting in-vehicle networks such as the Controller Area Network (CAN) bus. This paper presents a comprehensive evaluation of anomaly detection methods for OTA-integrated automotive systems. We review statistical, machine learning, and deep learning approaches, with a particular focus on their suitability for real-time deployment under automotive constraints. Our analysis draws on recent advances in literature, compares detection efficacy, computational overhead, and real-world adaptability, and provides insights into future research directions for the secure integration of OTA capabilities. The results highlight that hybrid, context-aware models leveraging both payload and sequence-level information achieve state-of-the-art detection with minimal resource consumption. Recommendations are made for integrating robust anomaly detection into OTA update frameworks, balancing accuracy, interpretability, and efficiency.