讲座主题：Mobility-Aware Server Placement and Power Allocation for Randomly Walking Mobile Users

主讲人：李克勤 院士

时间：2026年7月2号（星期四）15：00-17：00 

讲座地点：大学城校区B3-213会议室

Title: Mobility-Aware Server Placement and Power Allocation for Randomly Walking Mobile Users

Abstract: We systematically, quantitatively, mathematically address the problems of optimal mobilityaware server placement and optimal mobility-aware power allocation in mobile edge computing environments with randomly walking mobile users. The new contributions of the work are highlighted below. We establish a single-server M/G/1 queueing system for mobile user equipment and a multiserver M/G/k queueing system for mobile edge clouds. We consider both the synchronous mobility model and the asynchronous mobility model, which are described by discretetime Markov chains and continuous-time Markov chains respectively. We discuss two task offloading strategies for user equipment in the same service area, i.e., the equal-response-time method and the equal-load-fraction method. We formally and rigorously define the optimal mobility-aware server placement problem and the optimal mobility-aware power allocation problem. We develop optimization algorithms to solve the optimal mobility-aware server placement problem and the optimal mobility-aware power allocation problem. We demonstrate numerical data for optimal mobility-aware server placement and optimal mobility-aware power allocation with two mobility models, two task offloading strategies, and two power consumption models. The significance of the work can be seen from the fact that the above analytical and algorithmic discussion of optimal mobility-aware server placement and optimal mobility-aware power allocation for mobile edge computing environments with randomly walking mobile users has rarely been seen in the existing literature.

Speaker Profile：Keqin Li received a B.S. degree in computer science from Tsinghua University in 1985 and a Ph.D. degree in computer science from the University of Houston in 1990. He is a SUNY Distinguished Professor at the State University of New York and a National Distinguished Professor at Hunan University, China. He has authored or co-authored more than 1290 journal articles, book chapters, and refereed conference papers. He holds nearly 80 patents announced or authorized by the Chinese National Intellectual Property Administration. He is among the world's top few most influential scientists in parallel and distributed computing, regarding single-year impact (ranked #2) and career-long impact (ranked #3) based on a composite indicator of the Scopus citation database. He is listed in Scilit Top Cited Scholars and is among the top 0.02% out of over 20 million scholars worldwide based on top-cited publications in the last ten years. He is listed in ScholarGPS Highly Ranked Scholars and is among the top 0.002% out of over 30 million scholars worldwide based on a composite score of three ranking metrics for research productivity, impact, and quality in the recent five years. He is a Member of Academia Europaea (MAE), a Member of the European Academy of Sciences and Arts (EASA), a Fellow of the American Association for the Advancement of Science (AAAS), a Member of the USA National Academy of Artificial Intelligence (NAAI), a Fellow of the International Academy of Artificial Intelligence Sciences (AAIS), a Fellow of the International Artificial Intelligence Industry Alliance (AIIA), a Member of the World Academy of Sciences (WAS), a Fellow of the World Academy of Engineering & Technology (WAET), a Fellow of the Institute of Electrical and Electronics Engineers (IEEE), a Fellow of the Asia Computational Intelligence Society (ACIS), and a Member of the SUNY  Distinguished Academy.