中国科学院刘亚锋副研究员学术报告
报告题目:One-Bit Precoding in Massive MIMO: Algorithm Design and Performance Analysis
报告人:中国科学院数学与系统科学研究院刘亚锋副研究员
报告时间:2023年9月21日下午3:00-4:00
报告地点:beat365中文官方网站学院会议室80602
报告摘要:One-bit precoding is a promising way to achieve hardware-efficiency in massive MIMO systems and has gained growing research interests in recent years. However, the one-bit nature of the transmit signal poses great challenge to precoding design as well as performance analysis. In this talk, we will present some recent results on one-bit precoding. We will focus on both non-linear and linear-quantized precoding schemes. In particular, for non-linear precoding, we introduce a new negative ℓ1 penalty approach, which is based on an exact penalty model that penalizes the one-bit constraint into the objective with a negative ℓ1-norm term. The negative ℓ1 penalty approach achieves a better trade-off in complexity and symbol error rate (SER) performance than existing approaches. For linear-quantized precoding, we give an aysmptotic performance analysis for a wide class of precoders and derive the optimal precoder within the considered class. Different from existing Bussgang-decomposition-based analyzes, our analytical framework is based on random matrix theory (RMT), which is more rigorous and can be extended to more general cases.
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一年(合作导师:罗智泉教授)。博士毕业后,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。曾获2011年国际通信大会“最佳论文奖”,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”,2020年IEEE通信学会亚太地区“杰出青年学者奖”,2022年中国工业与应用数学学会“青年科技奖”等。他指导或者合作指导的员工曾获2022年IEEE ICASSP (International Conference on Acoustics, Speech and Signal Processing)和2015年IEEE WiOpt (International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks) 的“最佳员工论文奖”。他目前或曾担任《IEEE Transactions on Signal Processing》、《IEEE Transactions on Wireless Communications》、《IEEE Signal Processing Letters》和《Journal of Global Optimization》期刊的编委以及《IEEE Journal on Selected Areas in Communications》期刊的客座编委。他是IEEE信号处理学会SPCOM(Signal Processing for Communications and Networking)的技术委员会成员。他的工作获得国家自然科学基金委青年基金、面上项目和优秀青年基金的资助。他连续三年入选“全球前2%顶尖科学家榜单”中的 “年度科学影响力排行榜”(2020—2022)。