*********************************
There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
*********************************
ECE Telecommunications Seminar
"Some Non-Convex Optimization Problems for Resource Allocation in Cooperative Communication Networks"
Professor Daniel C. Lee
School of Electrical Engineering Department, Simon Fraser University, British Columbia, Canada
Abstract:
We consider resource allocation problems in cooperative communication systems. In particular, we discuss problems that are not formulated as convex optimization. The main focus of this talk will be on a communication system model comprising multiple users and a relay. In this model, the users exchange information among them with the help of the relay node. The relay uses amplify-and-forward (AF) relaying. We consider the problem of allocating power to the users and the relay so that the minimum among the users’ information theoretically achievable rates is maximized. The formulated problem is a non-convex optimization problem, and a structure that could guarantee the quality of the solution is not immediately visible. However, we find that with some transformations we can arrive at a new formulation for which an epsilon-optimal algorithm can be designed.
Bio:
Daniel C. Lee received the Ph.D. and S.M. degrees from the Massachusetts Institute of Technology in Electrical Engineering & Computer Science. He received a B.S. degree in Electrical Engineering with honors and a B.S. degree in Mathematics from the University of Maryland at College Park. From 1993 to 1998, Dr. Lee devoted his research to the systems engineering of networks and communication systems at the U.S. Naval Research Laboratory (NRL) in Washington, DC. Dr. Lee’s academic career began in 1998 as he joined the faculty of Electrical Engineering Department at the University of Southern California. He is currently a Professor in the School of Engineering Science at Simon Fraser University, in British Columbia, Canada. His main research interests have been quality of service and resource allocation issues in communication systems and networks. Applications of his research include wireless communications and networking, sensor networks, optical networks, and internet multimedia.
