數學系 Seminar 第2066期
報告主題：Nonlinear optimization techniques in wireless communications
報 告 人：孫聰 副教授 （北京郵電大學）
邀 請 人：余長君
報告摘要： 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.