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关于举行中科院计算数学研究所刘亚峰副研究员学术报告会的通知

发布时间:2019-11-15文章来源:华南理工大学数学学院浏览次数:289

报告题目:Semidefinite Relaxations for MIMO Detection: Tightness, Tighterness, and Beyond

    人:刘亚峰 副研究员(中科院计算数学研究所)

报告时间:20191122日(星期五)下午15:00-16:00                

报告地点:4号楼318

邀    人:贲树军 讲师   潘少华 教授

欢迎广大师生前往!

数学学院

2019 11 15

 

报告摘要:

Multiple-input multi-output (MIMO) detection is a fundamental problem in modern digital communications. Semidefinite relaxation (SDR) based algorithms are a popular class of approaches to solving the problem because the algorithms have a polynomial-time worst-case complexity and generally can achieve a good detection error rate performance. In this talk, we shall first develop two new SDRs for MIMO detection and show their tightness under an easily checkable condition. This result answers an open question posed by So in 2010. Then, we shall briefly talk about the tighterness relationship between some existing SDRs for the MIMO detection problem in the literature. Finally, if time is allowed, we shall also talk about a branch-and-bound algorithm (based on the newly derived SDR) for globally solving the MIMO detection problem (and a more general class of nonconvex complex quadratic problems).

 

报告人简介:

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);博士期间,受中国科学院数学与系统科学研究院资助访问明尼苏达大学罗智泉教授一年。毕业后,他一直在中国科学院数学与系统科学研究院计算数学所工作,2018年晋升为数学与系统科学研究院副研究员。他的主要研究兴趣是最优化理论与算法及其在信号处理和无线通信等领域中的应用,已在Mathematical Programming, SIAM Journal on Optimization, Mathematics of Operations Research等优化期刊以及 IEEE Transactions on Signal Processing, IEEE Journal on Selected Areas in Communications, IEEE Transactions on Wireless Communications, IEEE Transactions on Information TheoryIEEE交叉领域期刊发表论文三十余篇。曾获2011年国际通信大会最佳论文奖(由IEEE通信学会颁发),2015WiOpt (International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks)“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。他目前担任《IEEE Transactions on Wireless Communications》和《IEEE Signal Processing Letters》期刊的编委和《Journal of Global Optimization》期刊的客座编委。他是IEEE高级会员(Senior Member)、亚太信号与信息处理学会(Asia-Pacific Signal and Information 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)、中国运筹学会数学规划分会副秘书长。