【Abstract】Inspired by classical results in real-time scheduling, we address the problem of delivering packets with hard deadlines over unreliable wireless networks.We begin by considering a model of an access point serving several flows,and provide a possibly surprising characterization of what throughput vectors feasible,as well as throughput-optimal scheduling policies that are almost static. Then we turn to multi-hop networks with end-to-end deadlines,and obtain fully decentralized policies that are computationally tractable and throughput optimal. 　　

【Bio】Dr. P. R. Kumar’s current focus includes cyberphysical systems, cybersecurity, privacy, wireless networks, smart grid, autonomous vehicles, and unmanned air vehicle systems. His research interests include control theory, information theory, stochastic systems, machine learning, and operations research. He obtained a B.Tech. in Electrical Engineering (Electronics) from IIT Madras, and D.Sc. in Systems Science and Mathematics from Washington University, St. Louis, in 1973 and 1977. After serving on the faculty of Department of Mathematics, University of Maryland Baltimore County (1977-84), and Department of Electrical and Computer Engineering and Coordinated Science Laboratory, University of Illinois (1985-2011), he joined Texas A&M University, where he is a University Distinguished Professor, a Regents Professor, holds the College of Engineering Chair in Computer Engineering, is a Professor of Electrical and Computer Engineering, and Professor (Courtesy Appointment) of Industrial and Systems Engineering. He is a member of the U.S. National Academy of Engineering, The World Academy of Sciences, and the Indian National Academy of Engineering. He was awarded an honorary doctorate by ETH, Zurich. He has received the IEEE Field Award for Control Systems, the Donald Eckman Award of American Automatic Control Council, the Fred Ellersick Prize of IEEE Communications Society, the Outstanding Contribution Award of ACM SIGMOBILE, the Infocom Achievement Award, and a SIGMOBILE Test-of-Time Paper Award. He is a Fellow of IEEE and ACM Fellow. He was Leader of the Guest Chair Professor Group on Wireless Communication and Networking at Tsinghua University. He is a Gandhi Distinguished Visiting Professor at IIT Bombay, and Honorary Professor at IIT Hyderabad. He was awarded the Distinguished Alumnus Award from IIT Madras, the Alumni Achievement Award from Washington University in St. Louis, and the Daniel Drucker Eminent Faculty Award from College of Engineering, University of Illinois.