Event Scheduled for Mar 27, 2013
Event: ECE Faculty Candidate Seminar-Dr. Pangun Park-University of California-Berkeley-Modeling, Analysis, and Design of Wireless Network Protocols for Critical Networked Control Systems- Reception at 1:00
Location: ITEB 336
Time: 01:30 pm
Details of Event:
Abstract: Given the benefits offered by wireless networks compared to wired networks, such as, simple deployment, low cost, and large flexibility, wireless networks present an appealing technology as a smart infrastructure for critical control systems. Unfortunately, the current technology does not offer guaranteed efficiency and stability for closed-loop control systems. This talk describes a modeling, analysis, and design framework for wireless network protocols used in industrial automation and air transportation systems. The protocols are designed to maximize the efficiency of the network, while meeting control system requirements from the application layer.
The first part of the talk discusses the protocol design of wireless sensor network (WSN) based on a constrained optimization problem where the objective function is the energy consumption of the network, subject to constraints on reliability and packet delay for industrial automation. By using a Markov chain model, an adaptive random access protocol is proposed, and this is experimentally evaluated on a testbed. Moreover, a new cross-layer protocol, denoted Breath, is proposed where sensor nodes transmit information via multi-hop routing to a sink node. The protocol is based on the modeling of randomized routing, medium access control, and duty-cycling, and it is implemented on a testbed. The second part of the talk describes a framework for managing aircraft arrivals at an airport using a hybrid centralized/distributed algorithm for communication and control. The algorithm combines centralized control in congested regions with distributed control in lower traffic density regions. The hybrid algorithm is evaluated through realistic simulations of operations around a major airport.
Pangun Park received the M.S. and Ph.D. degrees in electrical engineering from the Royal Institute of Technology, Sweden, in 2007 and 2011, respectively. Since 2011, he has been working as a postdoctoral researcher in electrical engineering and computer science from the University of California, Berkeley. He received the best paper award at the IEEE International Conference on Mobile Ad-hoc and Sensor System of 2009. His research interests include cyber-physical systems, wireless embedded sensor and actuator networks, and high confidence networked systems.
Target Audience: Open to All
Sponsored By: Electrical and Computer Engineering
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