From December 8 to 12, 2025, the IEEE Global Communications Conference (IEEE GLOBECOM 2025) was held in Taipei, China. At the conference, a paper titled "VSSIDS: A Novel Intrusion Detection Scheme Based on Signal Stretching for In-Vehicle Networks", co-authored by Ph.D. candidate Zhouyan Deng (Class of 2023), master's student Xiaohan Zheng (Class of 2024), Ph.D. candidate Junman Qin (Class of 2022), and Professor Jiajia Liu from the School of Cyberspace Security at Northwestern Polytechnical University, was awarded the Best Paper Award in the "IoT and Sensor Networks" track.
Facing cybersecurity threats in in-vehicle networks, voltage-based intrusion detection schemes have garnered widespread attention from both academia and industry. Over the past decade, such schemes have faced an unresolved challenge: models trained on voltage signals within a narrow temperature range often fail to perform effectively in environments with broader temperature variations.
To overcome this challenge, the paper reveals that ambient temperature changes primarily affect the amplitude of voltage signals and proposes a signal stretching scheme for voltage signals. By normalizing the amplitudes of training and testing data to the same range, the impact of ambient temperature variations on model accuracy is mitigated. Experiments on prototype systems and real in-vehicle networks demonstrate that the trained model exhibits good robustness across a wider temperature range.
Comparison diagram of signals before and after stretching
IEEE GLOBECOM is one of the two flagship conferences organized by the IEEE Communications Society and is one of the largest and most influential academic conferences in the global communications industry. The conference covers multiple specialized fields including wireless communications, communication and information system security, IoT and sensor networks, and next-generation networks and the Internet. After review and recommendation by specialized technical committees and final evaluation by the conference's Best Paper Award Committee, 14 papers were selected for the Best Paper Award at this year's conference. This paper received the sole Best Paper Award in the "IoT and Sensor Networks" track.
