报告地点：腾讯会议 807-486-821
邀请人：孙海琳教授
报告摘要：Reconfigurable intelligent surface (RIS) with discrete phase shifts aided wireless communication network is considered. The resource allocation problem of sum rate maximization with power constraints and discrete phase shifts is solved. The complicated objective function is approximated by its upper bound. The difficult orthogonal constraint is penalized to the objective function through Courant penalty function technique. Two algorithms are proposed for the approximated problem based on alternating direction of multipliers method and proximal gradient method, respectively. Simulations show that the two proposed algorithms achieve higher sum rate with significantly lower computational cost than the sate of the art.
报告人简介：孙聪，北京邮电大学理学院副教授、博士生导师。2008年本科毕业于北京邮电大学理学院，2013年博士毕业于中国科学院数学与系统科学研究院。她的主要研究领域是非线性优化方法，特别是优化在信号处理中的应用。她曾获2017年度中国科协青年托举人才工程的资助。孙聪博士发表论文二十余篇，其中包括IEEE Transactions on Signal Processing等信号处理领域顶级期刊和会议等。她目前是中国运筹学会理事、副秘书长，北京市运筹学会理事、中国运筹学会数学规划分会青年理事。
