应哈工大电信学院孟维晓教授、韩帅副教授邀请，在哈工大国际合作处的资助下，无线通信领域国际知名学者、美国犹他州立大学大学Rose Qingyang Hu教授将于2018年8月5日—2018年8月8日来哈尔滨工业大学访问讲学。
讲学题目1：Key Wireless Access Technologies in 5G and IoT Systems
讲座人：Rose Qingyang Hu
Abstract: Device-to-Device (D2D) communication, NOMA, MU-MIMO, mobile edge computing are among the key technologies in the next generation (5G) cellular networks to support Internet of Things as they can significantly improve the system performance on connectivity, spectrum efficiency and energy efficiency. In this talk, we will address how to exploit these technology advantages and tackle the key technical challenges to achieve high system performance gains. In particular, we will present D2D, MU-MIMO, NOMA and Mobile Edge Computing based schemes and their related performance study in 5G/IoT settings. These schemes include beamforming and NOMA based MU-MIMO in a downlink cellular network with underlay D2D users, power control in D2D underlaid cellular networks, and Mobile Edge Computing. The talk will present detailed 5G system model, technology background, mathematical approaches and performance results based on both analysis and simulations. Key technical insights from these studies will be provided.
讲学题目2：Downlink and Uplink Non-Orthogonal Multiple Access in a Dense Wireless Network
讲座人：Rose Qingyang Hu
Abstract: To address the ever increasing high data rate and connectivity requirements in the next generation 5G wireless network, novel radio access technologies (RATs) are actively explored to enhance the system spectral efficiency and connectivity. As a promising RAT for 5G cellular networks, non-orthogonal multiple access (NOMA) has attracted extensive research attentions. Compared with orthogonal multiple access (OMA) that has been widely applied in existing wireless communication systems, NOMA possesses the potential to further improve system spectral efficiency and connectivity capability. This talk focuses on the analytical frameworks for NOMA downlink and uplink multi-cell wireless systems that can be used to evaluate the system outage probability and average achievable rate. In the downlink NOMA system, two different NOMA group pairing schemes are considered, based on which theoretical results on outage and achievable data rates are derived. In the uplink NOMA, revised back-off power control scheme is applied and outage probability and per UE average achievable rate are derived. As wireless networks turn into more and more densely deployed, inter-cell interference has become a dominant capacity limiting factor but has not been addressed in most of the existing NOMA studies. In this paper a stochastic geometry approach is used to model a dense wireless system that supports NOMA on both uplink and downlink, based on which analytical results are derived either in pseudo-closed forms or succinct closed forms and are further validated by simulations. Numerical results demonstrate that NOMA can bring considerable system-wide performance gain compared to OMA on both uplink and downlink when properly designed.
Prof. Rose Qingyang Hu [S’95, M’98, SM’06] (firstname.lastname@example.org) is a full Professor of Electrical and Computer Engineering Department at Utah State University. She received her B.S. degree from University of Science and Technology of China, her M.S. degree from New York University, and her Ph.D. degree from the University of Kansas.Besides 10 years’ academia research experience, Prof. Rose Qingyang Hu also has more than 10 years R&D experience with Nortel, Blackberry and Intel as technical manager, senior research scientist, and senior wireless system architect, actively participating in industrial 3G/4G technology development, standardization, system level simulation and performance evaluation. Her current research interests include next-generation wireless communications, wireless network design and optimization, Internet of Things, Cloud computing/Fog computing, multimedia QoS/QoE, wireless system modeling and performance analysis. She has published over 180 papers in top IEEE journals and conferences and holds over 30 patents in her research areas. Prof. Hu is an IEEE Communications Society Distinguished Lecturer 2015-2018 and recipient of Best Paper Awards from IEEE Globecom 2012, IEEE ICC 2015, IEEE VTC Spring 2016, and IEEE ICC 2016. She served as TPC Co-Chair for IEEE ICC 2018. She is currently serving on the editorial boards for IEEE Transactions on Wireless Communications, IEEE Transactions on Vehicular Technology, IEEE Communications Magazine, IEEE Wireless Communications Magazine, IEEE Internet of Things Journal. Prof. Hu is a senior member of IEEE and a member of Phi Kappa Phi Society.