Real-Time Interference Identification via Supervised Learning: Embedding Coexistence Awareness in IoT Devices

IEEE Access

Simone Grimaldi¹  Aamir Mahmood¹  Mikael Gidlund¹ 

[1] Department of Information Systems and Technology, Mid Sweden University, Sundsvall, Sweden;

关键词: Bluetooth;    interference detection and identification;    IoT;    machine learning;    wireless coexistence;    wireless sensor networks;   

DOI  :  10.1109/ACCESS.2018.2885893

来源: DOAJ

【 摘 要 】

Energy sampling-based interference detection and identification (IDI) methods collide with the limitations of commercial off-the-shelf (COTS) IoT hardware. Moreover, long sensing times, complexity, and inability to track concurrent interference strongly inhibit their applicability in most IoT deployments. Motivated by the increasing need for on-device IDI for wireless coexistence, we develop a lightweight and efficient method targeting interference identification already at the level of single interference bursts. Our method exploits real-time extraction of envelope and model-aided spectral features, specifically designed considering the physical properties of the signals captured with COTS hardware. We adopt manifold supervised-learning (SL) classifiers ensuring suitable performance and complexity tradeoff for the IoT platforms with different computational capabilities. The proposed IDI method is capable of real-time identification of IEEE 802.11b/g/n, 802.15.4, 802.15.1, and Bluetooth Low Energy wireless standards, enabling isolation and extraction of standard-specific traffic statistics even in the case of heavy concurrent interference. We perform an experimental study in real environments with heterogeneous interference scenarios, showing 90%–97% burst identification accuracy. Meanwhile, the lightweight SL methods, running online on wireless sensor networks-COTS hardware, ensure sub-ms identification time and limited performance gap from machine-learning approaches.

【 授权许可】

Unknown