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美国布拉德利大学Jing Wang 教授学术报告

来源: 点击: 时间:2019年12月30日 11:16

报告题目:Design of Nonlinear Controllers for Active Queue Management in TCP Networks

 

报告时间:202001053:00

报告地点:中南大学铁道学院第二综合楼513

报告简介:

Satellite systems are essential for communication in modern-military operations. They require high bandwidth to support the demands for voice and data communications. To support reliable high-bandwidth IP-based satellite communications, the Transmission Control Protocol (TCP) has to adapt to the changing environments.  This is of critically importance in IP based satellite networks because of the long propagation delays, highly possible link errors and asymmetric bandwidth involved in the satellite networks.

In this talk, we present a new design for TCP network congestion control based on a nonlinear control and optimization framework. The proposed TCP/AQM control framework consists of two levels: the high-level generates the desired queue size for routers in the network by solving a network utility maximization problem using a distributed optimization scheme; the low-level provides a local nonlinear feedback control for the probability of packet mark/drop based on a typical fluid-flow model for TCP dynamical behaviors. The nonlinear control design is done using a backstepping method and its stability is proved by the Lyapunov direct method. Simulation results are included to show the effectiveness of the proposed new design.

报告人简介:

Jing Wang (SM’12) received the Ph.D. degree in control theory and control engineering from Central South University, Changsha, China, in 1997. He was a Post-Doctoral Research Fellow with the Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China, from 1997 to 1999 and with the Department of Electrical and Computer Engineering, National University of Singapore, Singapore, from 1999 to 2002. From 2002 to 2007, he was with the School of Electrical Engineering and Computer Science, University of Central Florida, Orlando, FL, USA, as a Research Assistant Professor. From 2007 to 2014, he was with the Department of Computer Engineering and Computer Science, Bethune–Cookman University, Daytona Beach, FL, USA. Since 2014, he has been with the Department of Electrical and Computer Engineering, Bradley University, Peoria, IL, USA, where he is currently an Associate Professor. He has published and presented over 120 papers and four book chapters, mainly in the areas of nonlinear control, cooperative control, adaptive neural control, robotics, and optimization, in peer-reviewed international journals and conferences. His current research interests include cooperative control and robotics, distributed optimization and learning, nonlinear systems and control theory, and control applications.

 

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联系方式:0731-88879336 地址:湖南省长沙市岳麓区中南大学计算机楼

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