报告时间： 2018年10月11日 下午3 : 30
报告题目： Network Resource Management in Wireless Networked Control Systems
报 告 人： Xiaobo Sharon Hu（胡晓波）教授 （美国圣母大学）
邀 请 人： 张功萱 教授
Wireless networked control systems (WNCSs) are fundamental to many Internet-of-Things (IoT) applications and must work under real-time constraints in order to ensure timely collection of environmental data and proper delivery of control decisions. The Quality of Service (QoS) offered by a WNCS is thus often measured by how well it satisfies the end-to-end deadlines of the real-time tasks executed in the WNCS. Network resource management in WNCSs plays a critical role in achieving the desired QoS. Unexpected internal and external disturbances that may appear in WNCSs concurrently make resource management inherently challenging. The explosive growth of IoT applications especially in terms of their scale and complexity further exacerbate the level of difficulty in network resource management.
In this talk, I first give a general introduction of WNCSs and the challenges that they present to network resource management. In particular, I will discuss the complications due to external disturbances and the need for dynamic and distributed data-link layer scheduling. I then elaborate several of our recent works that aim at addressing this need. Our proposed approaches start with a centralized dynamic approach for minimizing the number of dropped packets. An improved approach balances the scheduling effort between a gateway (or access points) and the rest of the nodes to reduce communication cost. Finally a fully decentralized and dynamic approach accomplishes scalable network resource management with extremely fast response to handle disturbances. Experimental implementation on a wireless test bed validates the applicability of our proposed techniques. I will end the talk outlining our on-going efforts in this exciting area of research.
X. Sharon Hu is a professor in the department of Computer Science and Engineering at the University of Notre Dame, USA. Her research interests include low-power system design, circuit and architecture design with emerging technologies, hardware/software co-design and real-time embedded systems. She has published more than 300 papers in these areas. Some of her recognitions include the Best Paper Award from the Design Automation Conference and from the ACM/IEEE International Symposium on Low Power Electronics and Design, and the NSF CAREER award. She has participated in several large industry and government sponsored center-level projects and is a theme leader in an NSF/SRC E2CDA project. She was the General Chair of Design Automation Conference in 2018 and was the TPC chair of DAC in 2015. She also served as Associate Editor for IEEE Transactions on VLSI, ACM Transactions on Design Automation of Electronic Systems, etc. and is an Associate Editor of ACM Transactions on Cyber-Physical Systems. X. Sharon Hu is a Fellow of the IEEE.