演講題目： Adaptive Channel Switching for Enhancing Connection Reliability in Vehicular Networks under Extreme Weather Conditions

時間：2026/07/06(一)  上午10:30 ~ 12:00
地點：大仁樓200301教室

講者：Dr. Chin-Tser Huang, Professor, Department of Computer Science and Engineering, University of South Carolina (南卡羅萊納大學 黃金澤教授)

演講摘要：

Due to the enormous volume of data generated by connected vehicles (CVs), future vehicle-to-vehicle (V2V) communications will require a high-throughput communication channel. While 5G millimeter-wave (mmWave) technology generally meets these requirements, it suffers from the risk of performance degradation under harsh weather conditions such as heavy rain, snow or sandstorms. This decline is primarily because of the high frequency of mmWave, which results in significant propagation attenuation loss. In contrast, 4G LTE is less susceptible to these environmental challenges. In this talk, we introduce a Deep Reinforcement Learning (DRL)-driven approach which aims to improve communication performance reliability under severe weather conditions. Our proposed framework utilizes the Received Signal Strength Indicator (RSSI), short-term throughput, and weather parameters as input variables. It employs cumulative throughput as the reward metric in the reinforcement learning process. As the framework interacts with the environment, it learns to dynamically switch between 5G mmWave and 4G LTE channels to maintain a robust and reliable communication link between CVs. Our approach has been validated through simulations using the ns-3 network simulator, enhanced with a customized weather model for 5G mmWave and 4G LTE channels. The simulation results confirm that our DRL framework substantially improves the reliability and performance of V2V communication within minutes, even in harsh environmental conditions.

講者簡介：
Dr. Chin-Tser Huang is a Professor in the Department of Computer Science and Engineering at the University of South Carolina at Columbia. He received the B.S. degree in Computer Science and Information Engineering from National Taiwan University, Taipei, Taiwan, in 1993, and the M.S. and Ph.D. degrees in Computer Sciences from The University of Texas at Austin in 1998 and 2003, respectively. His research interests include network security, network protocol design and verification, and distributed systems. He is the director of the Secure Protocol Implementation and Development (SPID) Laboratory at the University of South Carolina. He is the author (along with Mohamed Gouda) of the book “Hop Integrity in the Internet,” published by Springer in 2005. His research has been funded by DARPA, AFOSR, AFRL, NSF, NEH, and USDOT. He is an NRC Research Associate in 2020, and a recipient of the USAF Summer Faculty Fellowship Award and of the AFRL Visiting Faculty Research Program Award in 2008-2024. He is a Senior Member of IEEE and ACM.