北京科学与工程计算研究院学术报告之七十九

报告人/Speaker: Ya-Feng Liu (刘亚锋), Associate Professor of Academy of Mathematics and SystemsScience, Chinese Academy of Sciences


报告题目/Title: A New and EnhancedSemidefinite Relaxation for a Class of Nonconvex ComplexQuadratic Problems with Applications in Wireless Communications


时间/Date & Time:20181031日,10:30—11:30


地点/Location: 理科楼M842,BISEC


报告摘要/Abstract:

In this talk, weshall consider a special class of nonconvex Complex Quadratic Problems (CQP),which finds many important and interesting applications in wirelesscommunications. In this talk, we shall first develop a new and Enhanced ComplexSemiDefinite Program, called ECSDP, for the considered CQP and then apply theECSDP to MIMO detection, a fundamental problem in modern wirelesscommunications. As our main result, we show the tightness of the ECSDP for MIMOdetection under an easily checkable condition. This result answers an openquestion posed by So in 2010. Based on the ECSDP, we can also develop abranch-and-bound algorithm for globally solving the MIMO detection problem(even though the above condition does not hold true).


报告人简介/About the speaker:

刘亚锋,2007 年毕业于西安电子科技大学理学院数学系,2012 年在中国科学院数学与系统科学研究院获得博士学位(导师:戴彧虹研究员),现任数学与系统科学研究院副研究员。其研究方向为最优化算法及其在无线通信中的应用,并在Mathematical Programming,SIAMJournal on Optimization, Mathematics of Operations Research 等优化期刊及IEEE 系列期刊发表论文三十余篇。曾获2010 年北京运筹学会“青年优秀科技论文一等奖”,2011 年国际通信大会“最佳论文奖”(由IEEE 通信学会颁发),2015 WiOpt “最佳学生论文奖”,2018 年数学与系统科学研究院“陈景润未来之星”,2018 年中国运筹学会“青年科技奖”等。目前担任《Journal of GlobalOptimization》期刊的客座编委,IEEE 高级会员(Senior Member)、亚太信号与信息处理学会(Asia-Pacific Signal andInformation Processing Association)无线通信和网络(Wireless Communications and Networking)方向的技术委员会成员(Technical Committee