ECE Seminar Series

ECE Seminar

Title: Computational Electromagnetics for Emerging Wireless Technologies
Speaker: Costas D. Sarris
Affiliation: University of Toronto
Day: Wednesday, September 28, 2016
Time: 10:00 am - 11:00 am
Location: LSC 308-310

Abstract: Transforming metropolitan areas in into "smart" cities, one of the focal research areas at the University of Toronto, requires the large-scale deployment of enabling information and communication technologies. From smart-grid monitoring to wireless control of mass transit systems, point of care and public safety applications, these technologies are based on geographically distributed wireless access points. The financial feasibility of installing and maintaining such networks of access points, meeting standards for "green" (energy efficient) and safe (in terms of radiation exposure of the population) operation, depends on the availability of computational planning tools integrating the physics of radiowave propagation with communication theory and network protocol design.

This talk will present recent research on computational electromagnetic techniques formulated to address some of these challenges:

-- Hybrid propagation models (combining vector parabolic equation and ray-tracing methods) for train stations and subway tunnels and their use in the deployment of communication-based train control (CBTC) systems, which are aimed at replacing conventional rail signaling with wireless train control enabled by the communication between the train and a network of access points.

-- Uncertainty quantification techniques for such models, efficiently incorporating various uncertainties in the geometry specification of real-life models of indoor and outdoor environments; extensions of these techniques for fabrication uncertainties arising in microwave and optical devices will also be discussed.

-- Robust optimization methods for multiple-input, multiple-output wireless power transfer systems, illuminating their rich underlying physics and the possibility for "power networking", whereby multiple distributed transmitters would be coordinated to charge multiple devices in a cooperative fashion.

Bio: Costas D. Sarris received the Ph.D. degree in electrical engineering and M.Sc. degree in applied mathematics from the University of Michigan, Ann Arbor, in 2002. He is currently a Full Professor and the Eugene V. Polistuk Chair in Electromagnetic Design at the Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, Canada. His research interests are in the area of numerical electromagnetics, with emphasis on high-order, multiscale/multi-physics computational methods, modeling under stochastic uncertainty, as well as applications of numerical methods to wireless channel modeling, wave-propagation in complex media and meta-materials, biomedical imaging, wireless power transfer and electromagnetic compatibility/interference (EMI/EMC) problems.

Prof. Sarris was a recipient of the IEEE MTT-S Outstanding Young Engineer Award in 2013 and an Early Researcher Award from the Ontario Government in 2007. His students have received paper awards at the 2009 IEEE MTT-S International Microwave Symposium, the 2008 Applied Computational Electromagnetics Society Conference, and the 2008, 2009, 2016 IEEE International Symposia on Antennas and Propagation. He was the Technical Program Committee Chair for the 2015 IEEE AP-S Int. Symposium on Antennas and Propagation, an associate editor for the IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES (2009-2012), the Technical Program Committee Vice-Chair for the 2012 IEEE MTT-S International Microwave Symposium, an Area Editor (Numerical Modeling) for the IEEE Microwave Magazine and an Associate Editor for the IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS (2007-2009).