Invited Speaker

Cong Sun

Cong Sun

Associate Professor, Beijing University of Posts and Telecommunications, China
Speech Title: Nonlinear optimization techniques in wireless communications

Abstract: In this talk, several commonly used nonlinear optimization techniques in wireless communications are reviewed. Optimization problems in wireless communications are usually nonconvex and highly nonlinear, where classic optimization methods may not be applied directly. Special structures of the optimization problems and the wireless communication background information should be considered and thus different optimization techniques are used accordingly. Starting from optimality conditions, we will talk about KKT equations, dual formulation, alternating direction search, and especially approximation techniques including Taylor expansion approximation, convex approximation and majorization/minorization. Examples will be presented to show the combinations of continuous and combinatorial techniques.


Biography: Dr. Cong Sun works as an associate professor in Beijing University of Posts and Telecommunications (BUPT). She got her Bachelor of Science degree from in 2008 from BUPT, and the phD degree from the University of Chinese Academy of Sciences in 2013. She visited TU Dresden, Germany in 2012 and 2015. Dr. Sun’s main research interest is nonlinear optimization, especially the optimization in signal processing and wireless communications. She was supported by the 2017 Young Elite Scientists Sponsorship Program by the China Association for Science and Technology (CAST). She is member of council of Operations Research Society of China.