RF Fingerprinting Needs Attention: Multi-task Approach for Real-World WiFi and Bluetooth

Abstract

<p>A novel cross-domain attentional multi-task architecture - xDom - for robust real-world wireless radio frequency (RF) fingerprinting is presented in this work.</p> <p>To the best of our knowledge, this is the first time such comprehensive attention mechanism is applied to solve RF fingerprinting problem. In this paper, we resort to real-world IoT WiFi and Bluetooth (BT) emissions (instead of synthetic waveform generation) in a rich multipath and unavoidable interference environment in an indoor experimental testbed. We show the impact of the time-frame of capture by including waveforms collected over a span of months and demonstrate the same time-frame and multiple time-frame fingerprinting evaluations. The effectiveness of resorting to a multi-task architecture is also experimentally proven by conducting single-task and multi-task model analyses. Finally, we demonstrate the significant gain in performance achieved with the proposed xDom architecture by benchmarking against a well-known state-of-the-art model for fingerprinting. Specifically, we report performance improvements by up to 59.3 % and 4.91x under single-task WiFi and BT fingerprinting respectively, and up to 50.5 % increase in fingerprinting accuracy under the multi-task setting.</p>

Deep learning at the edge for futureG networks: RF signal intelligence for comprehensive spectrum awareness

“…The study emphasized the edge deployment capability of deep learning solutions and their operational effectiveness in a real-world practical setting which will encounter other rogue undesired emissions, nearby wireless emissions from office spaces, undesired displacement of the radios utilized for sensing leading to orientation concerns, among other challenges inherent to the practical deployment environment. The study involved building the appropriate synthetic as well as real-world wireless datasets which were also released in publicly accessible platforms such as GitHub [5], IEEE DataPort [7,69,75], and…”

“…The novelty and details of the proposed architecture is described in detail in Section 4.3. The proceedings of this chapter were published in [7,8,75].…”